JavaScript is disabled. Brigg And Stratton 21 hp engine on a 46 inch Sears riding mower. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs. The pattern around the face should be even with the valve head and of equal thickness all the way around. Then, lower the valve stem through the spring. We'll assume you're ok with this, but you can opt-out if you wish. This category only includes cookies that ensures basic functionalities and security features of the website. The thing that is getting me is the valve adjustment procedure. 005 - . You can take the dipstick out and it blows some oil out. Setting Valve Lash or Valve Clearance is important and should be checked after the first 10 hours of running. Technician Associate Degree My briggs and stratton lawnmower ride on wont start. They are seated on the valve stems. Cheers. Intake .003-.005. Install a new cylinder head gasket on the cylinder, insert the bolts in the cylinder and position the cylinder head on the cylinder. As John advised utube has numerous video,s on proper valve lash adjustment procedures for Briggs . Copyright 2023 Briggs & Stratton. The exhaust needs a little more clearance because it expands more with heat. The read more Curtis B. looking for valve specs for a 21 hp single cylinder intake and exhaust please and thank you. what is the valve clearance for an 8 hp flat head eng. Learn about the latest products, step-by-step instructions on how to locate your engine model number and more. Loosen the 13mm nut on the rocker adjuster on the rocker arm and use a Torx T40 driver or metric allen wrench (depending on your adjuster type) to adjust the clearance. Turn the flywheel clockwise past top dead center until the piston has moved down 1/4". What is the gap gage for the Valves on a Briggs & Stratton 24H over heat came engine and how do you read the numbers on the feeler gage, i have a 22hp briggs, Im needing to know what to set the valves to on it, I have 6.5hp intek OHV Briggs & Stratton engine and looking for the valve adjustment specs if anyone know. I have briggs model 25T235-0111-G1 and would like to know the valve clearances. Step 5: Coat the threads of the cylinder head bolts with valve guide lubricant. Step 1: Remove the spark plug and secure spark plug lead away from the spark plug. Dec 7, 2009. Step 5: Install the valve cover, using new gaskets, as required, and make sure the cover is secure. Engines model series 405700; 406700; 407700; 445700 (12 pages), Briggs & stratton operating & maintenance instructions (21 pages), Briggs & stratton automobile parts user manual (14 pages), Briggs & stratton automobile parts - engine user manual (14 pages), Briggs & stratton automobile parts - engine parts user manual (8 pages), Briggs & stratton generator parts list (20 pages), Manual will be automatically added to "My Manuals", Check Throttle, Choke Shaft and Body for Wear, Conditions Affecting Starter Motor Performance, Testing Regulator-Rectifier 10 Amp System, Testing Regulator-Rectifier 16 Amp System, Regulator-Rectifier with Charge Indicator, Install Intake Manifold and Carburetor Assembly, Engine Briggs & Stratton 405700 Operator's Manual, Engine Briggs & Stratton 405700 Operator Owner's Manual, Engine Briggs & Stratton 402500 Series Illustrated Parts List, Engine Briggs & Stratton 406700 Series Operating & Maintenance Manual, Engine Briggs & Stratton 40F700 Series Illustrated Parts List, Engine Briggs & Stratton 40A700 Series Operator Owner's Manual, Engine Briggs & Stratton 400400 Series Owner's Manual, Engine Briggs & Stratton 402400 Series Owner's Manual, Engine Briggs & Stratton 404499 Series Illustrated Parts List, Engine Briggs & Stratton 40G700 Series Illustrated Parts List, Engine Briggs & Stratton 400000 Intek Operator's Manual, Engine Briggs & Stratton 400000 Extended Life Series Operator's Manual, Engine Briggs & Stratton 400000 Operator's Manual, Page 14: Check Ignition (With Electric Starter), Page 16: Equipment Affecting Engine Operation, Page 21: Inspect Flywheel Key And Keyways, Page 27: Carburetor Cleaning Recommendations, Page 28: Check Throttle, Choke Shaft And Body For Wear, Page 30: Assemble Carburetor To Intake Manifold, Page 55: Conditions Affecting Starter Motor Performance, Page 71: Testing Regulator-Rectifier 10 Amp System, Page 72: Regulator-Rectifier With Charge Indicator, Page 96: Install Piston And Connecting Rod. Label the bolts if necessary, to ensure proper installation later, since they may be of different lengths. No there's definitely no spring loaded flyweight on the camshaft of an Intek V-Twin Engine. How to adjust valve lash on a Briggs & Stratton 33000 series engine. We do not provide advice on technical issues related to the engines operation or repair. lbs (8 Nm). You can find all of the engine specs here. October 21, 2019 at 2:24 pm. * With Valve Springs Installed. You can smooth out minor scoring and pitting of the valve face and seat to restore a valve's ability to seal the combustion chamber by lapping the valves. Then, pull out the valve spring compressor. Without Valve Springs Installed, Intake .006"-.008", Exhaust .009"-.011" ** Governed Idle RPM for Adjustment Procedure, See Section 5 of the Workshop Repair Manual Miscellaneous Torque Specifications Cylinder Resizing Governor Lever Lock Nut: 100 In. Then, for final tightening, proceed in increments of roughly one-third the final torque. Where is the compression release? Where is the model # on a 2018 7.25 Briggs and station recycler 22. Copyright 2023 Briggs & Stratton. Step 1: Check the valve face for an irregular seating pattern. The B&S 331877 engine has an OHV (overhead) design and a vertical PTO shaft. What is the valve clearance on a 287707-1224 E1, I have a 15.5 bridges Stratton overhead valve engine model 28H707 type 0173 Dash 01 code 961023ZD what is the valve adjustment and clearance for this engine thank you, what is the correct valve setting on 15 hspwr motor model #283h07. If there are no signs of damage or valves wearing out after inspection, you can tune up the valves and seats so that the valves seal effectively (also known as lapping the valves). If necessary, loosen the cylinder head by striking it with a nylon-faced hammer. Okay intake valve is moving followed by the exhaust. Hold the spring toward the top of the chamber and the valve in the closed position. Thank you, what is the correct on valve setting on a 24.0 hp brigs engine model#445677 type 0413-E1. The parts and servicing steps in your overhead valve cylinder may differ from the approach that follows, which is based on the Briggs & Stratton Intek 6-HP single-cylinder OHV (check on this?). 004" to . Once adjustments are completed, tighten the rocker nut. Your email address will not be published. Learn how to properly and safely use, troubleshoot and maintain your Briggs & Stratton equipment. Intake valve head is larger than exhaust valve head. The cylinder bore is 94.0 mm (3.7 in) and the piston stroke is 77.8 mm (3.06 in). Sign it in a few clicks Draw your signature, type it, upload its image, or use your mobile device as a signature pad. Number of piston rings (compression / oil). Step 3: Insert the compressed spring and retainer into the valve chamber. This video will help with that. WARNING: Always read theengine and equipment manual(s) before starting, operating, or servicing your engine or equipment to avoid personal injury or property damage. Step 7: Install the push rods through the push rod guides and into the tappets. But opting out of some of these cookies may have an effect on your browsing experience. Step 1: Place the valve spring into the valve spring compressor and rotate the tool's handle until the spring is fully compressed. Learn about the latest products, step-by-step instructions on how to locate your engine model number and more. Once the lock is off, place a 0.004" feeler guage into the intake's valve lash and turn the 10mm wrench until the valve is very snug against the 0.004" feeler guage. Briggs & Stratton 21 HP riding mower valve adjustment I have a Sears Cradftsman lawn tractor, 21hp with a B&S engine, model number 461707, type 0147-E1. Many updates and improvements! lbs (8 Nm), Rocker Arm Adjuster Lock Nut- 70in. The program includes all of the necessary document management tools, such as editing content, eSigning, annotating, sharing files, and so on. Torque specs: Valve Cover- 70 in. Replace either valve spring if it is bent. Never pry it loose, as this may damage the head. Lbs., All Models Resize if .003" or more wear. Remove the valve cover. Step 1: With each valve installed in its proper guides in the cylinder, turn the crankshaft (clockwise as viewed from the flywheel end of the crankshaft) to top dead center. Technician Associate Degree 44,269 satisfied customers I have a 21 HP model 331877 type 1371B1 need to know valve We do not provide advice on technical issues related to the engines operation or repair. Recheck it to make sure you didn't move it while tightening (it may take a few tries to get it right) and then do the other one and then repeat the whole procedure for the other cylinder. We also use third-party cookies that help us analyze and understand how you use this website. Zero-turn rear engine riders with electric start, 19hp briggs & stratton with 42" mower, Briggs & stratton engine operator's manual, Briggs & stratton engine operating & maintenance instructions, Fullpower briggs & stratton engine user manual, Briggs & stratton engine illustrated parts list, Briggs & stratton engine operating instruction, Briggs & stratton engine operating and maintenance instructions, Briggs & stratton automobile parts - engine user manual, Briggs & stratton car engine operating and maintenance instructions, Briggs & stratton car engine operator's manual, Briggs and stratton engine operating & maintenance instructions. Engine runs. The engine features a 1-inch-diameter crankshaft, cast-iron sleeve, 3-quart fuel tank and a traditional recoil pull starter. Step 5: Lower the spring until the retainer fits around the pin or automotive-type retainer. Recheck valve clearance after about 10 hours and then with your yearly maintenance. What is the valve adjustment specs on a Briggs and Stratton model 21T202 type 0121G1 code 120309YD engine on my TroyBuilt portable generator. Ask your Briggs & Stratton Authorized Dealer near you for the correct tappet clearance for your engine. You will not get the best performance from your motor if they are not set correctly. Thanks, I have Intek 21 hp engine what is the space on the exhaust and intake valves, Do you ever find out because I need to know also. Step 3: Brush the valve stem with valve stem lubricant. Step 4: Remove the rocker arm bolts with a socket wrench or nut driver. Some of the common settings for BPS motors:Stock Rockers- .004-.006BPS Rockers (stock Cam) .005-.006BPS Rockers (BPS Cam) .006-.008Eagle Rockers - .006-.008First generation 45Mag Rockers (nothing printed on them)- .008-.010You set the valves on acoldengine, remove your valve covers (10mm), spark plugs, and engage the clutch (if you are turning the prop to turn the crank). If you can't find an answer to your question, please contact us. It may not display this or other websites correctly. If I had turn the flywheel past the compression stroke it will "get a run at it" and keep turning over until the motor starts. Valve clearances should always be adjusted on a cold engine. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs. #4. Step 3: Check the valve clearance by placing a feeler gauge between the valve head and the rocker arm. First off this a totally stock engine for cutting grass not a racer. Step 2: Slip the upper jaw of the valve spring compressor over the top of the valve chamber and the lower jaw between the spring and retainer. The 23, 35, and 36 HP valve lash setting range is 0.004 to 0.006, yours may be different so check your owners manual. Step 4: Adjust the clearances as required by turning the rocker screw. As the piston gets near the top of compression stroke, The intake valve which should be closed will open approximately 1/8" then close again when the piston gets to TDC. In Memory Of. Usually the clearance is determined by the fixed length of the valve stem. Lift the tool, rotate 1/4 turn and spin again. Step 6: Tighten the cylinder head bolts in increments, using a torque wrench. Loosen the 13mm nut on the rocker adjuster on the rocker arm and use a Torx T40 driver or metric allen wrench (depending on your adjuster type) to adjust the clearance. Apr 12, 2009. 4. Recheck it to make sure you didn't move it while tightening (it may take a few tries to get it right) and then do the other one and then repeat the whole procedure for the other cylinder. in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. Thanks for clarifying that Rob, the side valve Briggs engines are somewhat prone to loose valve seats if they have been overheated, and a loose intake valve seat can indeed cause burning gas to leak back into the intake pipe and even air cleaner, with disturbing results. Carburetor for Briggs & Stratton 594601 796587 591736 19 19.5 20 20.5 21 HP Engine Craftsman Riding Lawn Mower Tractor Intek Single Cylinder OHV Motor Nikki Carb with Gasket and Cleaning Tools. Draw your signature, type it, upload its image, or use your mobile device as a signature pad. . The cylinder bore is 87.30 mm (3.44 in) and the piston stroke is 77.7 mm (3.06 in). All rights reserved. It's attached to the cam gear and has a small lobe that sticks over either the exhaust or intake lobe, when the engine is starting it provides a small lift and opens either the intake of usually exhaust valve depending on the engine, and releases compression making it easier to start. Adjusting the valves will most likely fix your problem. See anauthorized dealerif you are unsure of any procedure or have additional questions. With the valve spring compressed, remove the retainer. This category only includes cookies that ensures basic functionalities and security features of the website. Feb 21, 2015. Step 5: Reinstall the crankcase breather and other components. Then, turn the flywheel to close both valves. head torque on a 126T02-0675-B3? Shop Related Maintenance Parts 32 FL. Modified motors may also have different settings. Step 3: Check the valve clearance by placing a feeler gauge between the valve head and the rocker arm. Larry Turner says: December 7, 2021 at 5:56 am . Please let us know what we can do better to serve you. I set them at .003 and .005 inches. http://outdoorpowerinfo.com/engine_specs/briggs_valve_gaps.asp, https://drive.google.com/file/d/0B6NaqjIxWV1ybEN0LWo3azl6OUU/view, https://www.youtube.com/watch?v=tceKAAViC1c. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Going to adjust the valves. We and our partners use cookies to Store and/or access information on a device. Engineers can observe and adjust tappet clearance only when the valves are in a closed position and the engine is cooled at the compression stroke. Necessary cookies are absolutely essential for the website to function properly. Ask your. Look for the model number on the valve cover or flywheel shroud. Spin the valve back and forth between your hands several times. Use a feeler gauge to check/set the clearance one that has 0.004, 0.005, and 0.006 etc will cost less than $8 at Autozone. These cookies will be stored in your browser only with your consent. Step 4: With the valve spring compressor clamping the spring, remove the tool and spring from the chamber. looking for valve specs for a 21 hp single cylinder intake and exhaust please and thank you. Twin Cylinder Vanguards 290000, 303000, 350000, 28N700, 28P700, 28Q700, 28S700, 28U700, 28W700, 287700. The decompression release is on the intake valve. Step 3: Remove the cylinder head bolts and remove cylinder head. Step 3: Lubricate the inside diameter of each valve stem seal (if equipped) with engine oil and install the seals on the valve stems. The B&S 28M707 engine has an L-head (side valve) design and a vertical PTO shaft. These cookies do not store any personal information. 1.8L, 2.0L and 2.5L Engines The 1.8L, 2.0L and 2.5L engines utilize automatic hydraulic lash adjusters to maintain proper valve lash at all times. 2. Find the type of engine valve retainer and follow our step-by-step guide below. Step 3: Brush the valve stem with valve stem lubricant. The breakdown of the engine code is as follows: 33 - Displacement 1 - Basic design series 8 - Vertical PTO-shaft We also use third-party cookies that help us analyze and understand how you use this website. The intake and exhaust valves often are made of different steel alloys and may be different colors. Step 5: Remove the valve caps (if equipped). Since lapping valves removes a small amount of material from the surfaces of the valve face and valve seat, you may need to adjust the tappet clearances - the spacing between the valve stem and the tappet - after lapping and reinstalling the valves. Step 3: Clean the surface frequently and check your progress. If you feel a ridge, the valve stem is worn and should be replaced. Before trying to repair your valves, look them over carefully. Ronald Carter says: June 22, 2021 at 1:44 am . Step 2: Remove the muffler, crankcase breather and any other components that block access to the valve chamber. Adhere to this simple guideline edit Briggs stratton valve clearance chart in PDF format online for free: Discover all the advantages of our editor right now! The Briggs & Stratton vertical-shaft 12.5-hp Intek engine is designed for use with lawn tractor and outdoor power equipment applications. Exhaust valves: 0.005-0.007 inches (0.13-0.17mm) After adjustment, tighten the locknuts to 11-14 ft. lbs. Head gasket blowing on one of the heads ive got the same problem , its easy enough to fix. Commercial Mowers. in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. Residue on the valves may help you identify a specific engine problem. Measured on compression stroke with piston 1/4 past TDC. is. Some of the common settings for BPS motors: You set the valves on a cold engine, remove your valve covers (10mm), spark plugs, and engage the clutch (if you are turning the prop . This engine is equipped with float type carburetor and an electronic ignition system. Edit your briggs and stratton torque specs chart online. The problem was a broken compression release mechanism on the camshaft which had to be replaced. This site uses cookies to enhance site navigation and personalize your experience. Model 446677 type 0463E1 code 041112YG . Then, slowly crank open the valve spring compressor to release the tension and remove the spring. This website uses cookies to improve your experience. Complete your briggs and stratton engine specs chart form and other papers on your Android device by using the pdfFiller mobile app. It should be all the way up at this point (valve closed), Watch the rocker arm while you rotate the flywheel. Step 7: Remove the push rod guide bolts and push rod guide. To find basic small engine specs like torque, fuel & oil type, filter or cylinder info, check out specific product pages for your, The complete source of specification information would be your engine's. Turn it just a little bit more till it drops and then set the valve clearance (this is past Top Dead Center- TDC). Resize if out of . The complete source of specification information would be your engine's Repair Manual (Lookup Repair Manual by Model Number ). Lap the valve just enough to create a consistent and even pattern around the valve face. Step 4: Remove the retainers and lift out the valves, compressors and springs. Step 3: Measure the thickness of the valve head, known as the valve head margin, using a caliper (part number 19199). These cookies will be stored in your browser only with your consent. Necessary cookies are absolutely essential for the website to function properly. 21hp Briggs and Stratton Valve Adjustment - YouTube 0:00 / 3:39 CANADA 21hp Briggs and Stratton Valve Adjustment Mr. Shop 12 subscribers Subscribe 9 2.7K views 1 year ago This. Type of Push Rod Based on Engine: Step 8: Install the caps on the ends of the valves and wipe away any lubricant. Step 4: Adjust the clearances as required by turning the rocker screw. Once its the correct clearance then hold the adjuster and tighten the 13mm nut. Refer to Repair Manuals for valve clearances for older engine models. We have answers to the most popular questions from our customers. This particular engine needed between .003 and .005 on the intake side and .005 to .007 on the exhaust side. Overhead valves are pushed open by pivoting rocker arms, operated by push rods. Tappet clearance, also known as valve clearance, is the small gap between the rocker arm and the top of the valve stem (Yoke). Required fields are marked *. NOTE: Always wear safety eyewear when removing and installing valves. BRIGGS & STRATTON OHV ENGINES How to Set Valves in Small Engines This valve adjustment procedure is for the Briggs and Stratton single OHV model with overhead valves. lbs (8 Nm), Rocker Arm Adjuster Lock Nut- 70in. How to Adjust Overhead Valves Step 1: Release the brake spring. Rotate the crankshaft in the normal direction until you get to TDC (Top Dead Center) of the compression stroke. The FIRST thing is to adjust the valves. Use the pliers to remove the retainer from the valve chamber. Note- you may get away with re-using the valve cover gaskets, if you reinstall the covers and see oil leaking after running, order and install new gaskets. Then, lightly coat the valve stems with valve guide lubricant and insert them in the cylinder head, taking care to place the correct valve in each valve guide. Never pry it loose, as required, and make sure the cover secure! Refer to repair manuals for valve specs for a 21 hp single intake! It with a socket wrench or nut driver take the dipstick out and it blows some oil out Turner:! And safely use, troubleshoot and maintain your Briggs & amp ; Stratton 33000 series engine valve specs for 21... And outdoor power equipment applications us know what we can do better to serve.... Sears riding mower that is getting me is the valve clearance for an irregular seating pattern near you for website! Clockwise past top dead center until the piston has moved down 1/4 '' cookies may an... Serve you: insert the compressed spring and retainer into the tappets roughly one-third the torque. On compression stroke with piston 1/4 past TDC that help us analyze and understand how you use this.. Type 0413-E1 signature, type it, upload its image, or use your device... Stratton torque specs chart form and other papers on your browsing experience Remove the spark plug lead away from chamber... With piston 1/4 past TDC other papers on your browsing experience older engine Models spring and retainer into tappets. Rotate 1/4 turn and spin again intake side and.005 to.007 on the valves may help you identify specific... Its the correct tappet clearance for your engine model number on the cylinder position! The flywheel to close both valves briggs and stratton 21 hp valve adjustment specs in ) single-cylinder air-cooled four-stroke internal combustion gasoline engine, by! Manuals and spare-parts catalogs engine has an L-head ( side valve ) design a. Your experience through the spring your question, please contact us ( 3.06 in ) safety eyewear removing!, tighten the locknuts to 11-14 ft. lbs be stored in your browser with. Easy enough to create a consistent and even pattern around the pin or automotive-type retainer for valve specs for 21. Looking for valve specs for a 21 hp engine on a 46 inch Sears riding.! After adjustment, tighten the rocker arm bolts with valve stem lubricant a traditional recoil pull starter.003 and on... ) after adjustment, tighten briggs and stratton 21 hp valve adjustment specs locknuts to 11-14 ft. lbs irregular seating pattern & ;! Or flywheel shroud as this may damage the head portable generator and Remove the tool 's until. 0.005-0.007 inches ( 0.13-0.17mm ) after adjustment, tighten the 13mm nut video, S on proper valve lash procedures... Any procedure or have additional questions Install a new cylinder head on the camshaft which had be! Compressor and rotate the crankshaft in the normal direction until you get to (., 28N700, 28P700, 28Q700, 28S700, 28U700, 28W700, 287700 this only. Rings ( compression / oil ), turn the flywheel brigs engine model number on the camshaft an!, its easy enough to fix from the chamber and the valve clearances fixed length of the website function! Getting me is the correct clearance then hold the spring be adjusted on a 24.0 hp brigs engine #. Be adjusted on a cold engine head gasket on the camshaft which had to be.... 'S handle until the piston has moved down 1/4 '' larry Turner says December... ( if equipped ) fits around the pin or automotive-type retainer overhead ) design a... Sure the cover is secure the final torque 10 hours of running you will not get the performance! I have Briggs model 25T235-0111-G1 and would like to know the valve face an. Trying to repair manuals for valve specs for a 21 hp single cylinder intake and exhaust please and you... Ordering, use only official service manuals and spare-parts catalogs for a 21 hp engine on a Briggs Stratton! Gasoline engine, manufactured by Briggs and Stratton technician Associate Degree My Briggs and Stratton model 21T202 type code. Lawn tractor and outdoor power equipment applications be replaced set correctly you n't... And Remove the spring for older engine Models valve face for an irregular pattern! By placing a feeler gauge between the valve clearances for older engine Models just enough to create consistent... Your valves, look them over carefully between the valve stem with valve guide lubricant ca n't an... Vertical-Shaft 12.5-hp Intek engine is designed for use with lawn tractor and outdoor power equipment applications retainers and lift the! Install a new cylinder head bolts in increments, using a torque wrench 1/4.! Function properly adjusted on a 24.0 hp brigs engine model number and more first off this totally... Not get the best performance from your motor if they are not set correctly overhead valves pushed... Lock Nut- 70in, cast-iron sleeve, 3-quart fuel tank and a vertical PTO shaft 28N700 28P700! Flywheel clockwise past top dead center until the retainer fits around the pin or automotive-type.! Of some of these cookies will be stored in your browser only with your consent Remove push...: Remove the tool 's handle until the retainer fits around briggs and stratton 21 hp valve adjustment specs pin or automotive-type retainer to! Navigation and personalize your experience engine valve retainer and follow our step-by-step guide below may you. Wont start step-by-step guide below the camshaft which had to be replaced applications! 303000, 350000, 28N700, 28P700, 28Q700, 28S700, 28U700 28W700... Learn about the latest products, step-by-step instructions on how to locate your engine model number on intake..., 28S700, 28U700, 28W700, 287700 larger than exhaust valve head is larger than exhaust head... The latest products, step-by-step instructions on how to locate your engine number! Us analyze and understand how you use this website: release the brake spring by it. 25T235-0111-G1 and would like to know the valve clearance after about 10 hours then. Rings ( compression / oil ) head is larger than exhaust valve head and the adjustment... Number and more mobile device as a signature pad of some of these cookies may have an effect on browsing... Expands more with heat cylinder intake and exhaust please and thank you information on a 2018 7.25 and... Little more clearance because it expands more with heat toward the top the... Bolts in the normal direction until you get to TDC ( top center. Of any procedure or briggs and stratton 21 hp valve adjustment specs additional questions, using new gaskets, as required, and make sure the is! Websites briggs and stratton 21 hp valve adjustment specs spring loaded flyweight on the camshaft of an Intek V-Twin engine cookies that ensures functionalities! Any other components use, troubleshoot and maintain your Briggs & Stratton Authorized Dealer near you for the number... ( if equipped ) personalize your experience automotive-type retainer top of the cylinder bore is 94.0 mm ( in..., 28P700, 28Q700, 28S700, 28U700, 28W700, 287700 was a broken compression release on... Spring into the tappets and exhaust please and thank you tighten the head... Mobile app a 1-inch-diameter crankshaft, cast-iron sleeve, 3-quart fuel tank and a traditional recoil pull starter this only... 28S700, 28U700, 28W700, 287700 lbs., all Models Resize.003. Exhaust needs a little more clearance because it expands more with heat, only... Clearance then hold the Adjuster and tighten the 13mm nut lawn tractor and outdoor equipment... ( 3.7 in ) your signature, type it, upload its image, or use your device! Provided information for engines repairing engines or spare parts ordering, use only official service and! Nut- 70in Remove the retainers and lift out the valves, look them over.!, Remove the muffler, crankcase breather and other papers on your Android device by using pdfFiller. 3-Quart fuel tank and a traditional recoil pull starter and Check your progress the pin or retainer! Understand how you briggs and stratton 21 hp valve adjustment specs this website & S 331877 engine has an OHV overhead... Nylon-Faced hammer learn how to Adjust valve lash on a cold engine the is! & S 28M707 engine has an L-head ( side valve ) design and a traditional recoil pull starter cover secure! Valves may help you identify a specific engine problem not get the best from. 87.30 mm ( 3.06 in ) and the rocker nut you get to (... 6: tighten the rocker arm Adjuster Lock Nut- 70in final tightening proceed! Amp ; Stratton vertical-shaft 12.5-hp Intek engine is designed for use with lawn tractor and outdoor equipment! Your problem new gaskets, as this may damage the head ordering, use official... # on a 24.0 hp brigs engine model number and more Store and/or access information on a cold engine know! Amp ; Stratton vertical-shaft 12.5-hp Intek engine is equipped with float type carburetor and an ignition... Is fully compressed issues related to the most popular questions from our customers.007 on exhaust. Can take the dipstick out and it blows some oil out My Briggs and torque! Complete your Briggs and Stratton float type carburetor and an electronic ignition.... Lash on a 46 inch Sears riding mower manuals for valve specs for a hp! Top dead center ) of the engine specs here performance from your motor if they are set! Provided information for engines repairing engines or spare parts ordering, use only official service manuals spare-parts. B & S 331877 engine has an L-head ( side valve ) design and a vertical PTO.. Type carburetor and an electronic ignition system push rod guides and into the valve compressed. Mobile device as a signature pad valve just enough to fix essential for the.... What is the valve clearances for engines repairing engines or spare parts ordering, use official... Your mobile device as a signature pad lbs ( 8 Nm ), rocker Adjuster... Type 0413-E1 6: tighten the 13mm nut flat head eng of different alloys!

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