Head bolt torque specs for briggs and stratton

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The Briggs and Stratton 40H777 is a 656 cc (40.0 cu·in) V-twin air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 40H777 engine has an OHV (overhead valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system.The Briggs and Stratton 303447 Vanguard is a 495 cc (30.2 cu·in) V-twin air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton.. The B&S 303447 engine has an OHV (over-head valve) design and a horizontal PTO shaft. This engine is equipped with float type, down-draft carburetor and an magneto electronic …Mar 2, 2010 · Torque spec on the rod bolts is 150 inch/pounds, and the top bolt must be torqued FIRST. (The bolt closest to the piston) The head bolts are 220 inch/pounds, and the torque should be laid on in several stages just to be safe. 1) Run a tap and die set into the bolt holes and over the head bolts if there is any doubt of cleanliness. Briggs & Stratton . head bolt torque specs, Vanguard 28hp efi. Thread starter txdarewick; Start date Nov 11, 2023 ••• More ... Looking for the head bolt torque specs and the tightening sequence. 49E777-0001-G1 . M. mechanic mark Lawn Pro. Joined Jul 15, 2013 Threads 175 MessagesApr 10, 2020 · My engine is a Briggs & Stratton / Intek #33R877. If you need a head gasket kit I picked mine up on Amazon - https://amzn.to/2RvGvAX (affiliate)

The B&S 303447 engine has an OHV (over-head valve) design and a horizontal PTO shaft. This engine is equipped with float type, down-draft carburetor and an magneto electronic ignition system. The B&S 303447 engine used low profile dual-clean air cleaner. The cylinder bore is 68.0 mm (2.68 in) and the piston stroke is 66.0 mm (2.6 in). Cylinder head bolt torque sequence—3.4L engine. Cylinder head by aligning it with the dowel pins. New cylinder head bolts coated with a sealant (such as GM 1052080). Torque the bolts in the proper sequence (1-8) to 37 ft. lbs. (50 Nm). Using a torque angle meter turn the bolts 90 degrees in the proper sequence.From there, you can determine the cylinder head torque specifications right down to the valve clearance for intake and exhaust if needed. Head bolt torque specs are among the most common, and a few need to know the main bearing torque for things like the Briggs & Stratton Intek 311777.Head Bolt Torque Specifications. To properly torque the cylinder head bolts on a 21 hp Briggs and Stratton engine, it is important to follow the manufacturer’s specifications. …The Briggs and Stratton 286707 is a 465 cc (28.38 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 286707 engine has an L-head (side valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system.Follow these steps to properly torque the head bolts on your 07 Chevy 5.3 engine: Clean the threads of the head bolts and the bolt holes in the engine block using a suitable cleaning agent. Apply a small amount of engine oil to the threads of the head bolts. Start by torquing all the head bolts to 22 ft. lbs. (30 Nm) in the specified sequence.The Briggs and Stratton 350447 Vanguard is a 570 cc (34.8 cu·in) V-twin air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 350447 engine has an OHV (overhead valve) design and a horizontal PTO shaft. This engine is equipped with float type, down-draft carburetor and an magneto electronic ...Our store offers a range of high-quality, original replacement hex head bolts designed specifically for Briggs & Stratton engines. These bolts are engineered to provide a secure and reliable fastening solution for various engine components. With precise measurements and durable materials, our hex head bolts ensure a perfect fit and long-lasting ...

Past 30 Days: 513. All Time: 41,131. @knuckelhead the 400000 series should be a Intek V-twin 1. Place cylinder head gasket over alignment dowels on cylinder block. 2. Install cylinder head assembly. Torque head bolts in sequence shown to 220 in. lbs. (25 Nm). Here is the diagram to show the pattern - Briggs and Stratton motor.The Briggs and Stratton 31A607 is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 31A607 engine has a cast iron sleeve, an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor with pulse fuel pump and an ...fastener specifications description wrench/socket size torque alternator………………………… 1/4"…………………………..……. 20 in. lbs. (2.2nm)Steps to Torque the Head Bolts. To ensure the proper torque is applied to the head bolts of your 5HP Briggs and Stratton engine, follow these steps: 1. Start by cleaning the threads of the head bolts and the corresponding holes in the engine block to remove any dirt or debris. 2.

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Showing the process of installing a new head gasket on flat head small engines. Special thanks to Dawn for the video idea!Aug 29, 2010 ... How To Torque Cylinder Head Bolts - EricTheCarGuy http://www.ericthecarguy.com/ Well this was a fun one to make. 22 HP Twin-V Torque Specs, A-B. Alternator torque is 20 inch-pounds; socket size is 1/4 inch. Armature torque is 25 inch-pounds; socket size is 5/16 inch. Back plate-to-cylinder torque is 100 inch-pounds; socket size is 3/8 inch. Blower housing torque is 80 inch-pounds; socket size is 3/8 inch. The Briggs and Stratton 31C707 Powerbuilt is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 31C707 engine has an OHV (overhead) design, cast iron sleeve and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ... Briggs and Stratton is a renowned name in the small engine industry, known for their high-quality engines that power a wide range of outdoor equipment. Before we delve into the imp...The Briggs and Stratton 31G777 Intek is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 31G777 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system.

23HP Briggs (Model 380000) Torque Specs: Head Work: Valve Cover_____ 70 in. lbs (8 Nm) Rocker ... Home › Vanguard 23 hp Torque Specifications. Compatibility. Vanguard 14 hp; Vanguard 18 hp; Vanguard 21 hp; Vanguard 23 hp; ... Muffler Bolt Packet for Vanguard Engines. Regular price $17 50 $17.50. Quick links. Search;Mar 31, 2017 · Tightening torque: 36.1 ft. lbs. (49 Nm, 5 kg-m) Loosen bolts in reverse of order shown. Retighten cylinder head bolts in order shown. Tightening torque: 18 ft. lbs. (25 Nm, 2.5 kg-m) Mark cylinder head bolts for rotational reference. Rotate cylinder head bolts 90° (1/4 Turn) in order shown. 2 posts · Joined 2006. #1 · Dec 2, 2006. Having broken off one head bolt on my 11 hp ride on mower motor I think I may need to know the torque setting for them. It's model 253707 Type 0160 02 Code 84061810. Can anyone help me with the manual or even just the torque setting and tightening sequence. Thanks for listening. [email protected] achieve the recommended torque for the head bolts, it is essential to use a torque wrench. Below is a table outlining the head bolt torque specifications for Briggs & …The B&S 31H777 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system. The B&S 31H777 engine used a paper cartridge air filter. It is equipped with an electric starter (12V). The cylinder bore is 90.6 mm (3.57 in) and the piston stroke is 77.8 mm (3.06 in).Head Bolt Torque (ft. lbs.) Head Bolt Torque (Nm) Model A, B, and Z: 140-160: 190-217: Model F, FH, and L: 180-200: 244-271: Model N, NP, and NR: 200-220: 271-298: Model P, R, and S: 220-240: 298-325: Model T, U, and Y: 240-260: 325-352Need torque specs for briggs and Stratton 21 HP 331877-0869-g5 on craftsman tractor.Thanks ... 422707 opposed twin 18hp torque specs for head bolts and specs as well ...Oct 23, 2015 · Showing the process of installing a new head gasket on flat head small engines. Special thanks to Dawn for the video idea!

Torque spec on the rod bolts is 150 inch/pounds, and the top bolt must be torqued FIRST. (The bolt closest to the piston) The head bolts are 220 inch/pounds, and the torque should be laid on in several stages just to be safe. 1) Run a tap and die set into the bolt holes and over the head bolts if there is any doubt of cleanliness.

Briggs and Stratton Gasket-Cylinder Head Specs Part Manufacturer: BRIGGS & STRATTON. Product Number: 693997. 693997 Manual and Additional Information. If you're unsure whether this is the right part for your needs, don't worry. We've got you covered.Briggs & Stratton Head Torque Specifications. Showing the process of installing a new head gasket on flat head small engines. Special thanks to Dawn for the …The Briggs and Stratton 28R777 is a 465 cc (28.4 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 28R707 engine has an L-head (side valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system.The Briggs and Stratton 252707 is a 399 cc (24.3 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 252707 engine has an L-head (side valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an transistor module ignition system.Cylinder head bolt torque sequence—3.4L engine. Cylinder head by aligning it with the dowel pins. New cylinder head bolts coated with a sealant (such as GM 1052080). Torque the bolts in the proper sequence (1-8) to 37 ft. lbs. (50 Nm). Using a torque angle meter turn the bolts 90 degrees in the proper sequence.Jul 5, 2020 · Quick & Simple!In today's video, I'm going over some lawn mowers that I'm getting ready to sell.Torquing the head bolts to the manufacturers spec is importan... I'm looking for the head bolt torque specifications and valve clearance gap for a 18.5 HP Briggs and Stratton engine: Model - 3P7770, Type - … read more. Hank F. Technician. High School or GED. 10,469 satisfied customers. Steps to Torque the Head Bolts. To properly torque the head bolts on your 18 HP Briggs and Stratton engine, follow these steps: Step 1: Start by ensuring that the engine is turned off and cool to the touch. This will help prevent any accidental injuries and ensure accurate torque readings. Step 2:

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The Briggs and Stratton 31C707 Powerbuilt is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 31C707 engine has an OHV (overhead) design, cast iron sleeve and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ...Briggs torque stratton specs chart ohv fixya torques solved 22hp. Briggs and stratton head bolt torque chartBriggs engine stratton Briggs stratton specs conrod connecting outdoorkingBriggs stratton specs engine chart repair specifications manuals metric common popular models hp manual.The MTX Blue Thunder 10 is a car-audio subwoofer. The subwoofer prevents distortion without reducing power. The Blue Thunder subwoofer is small in size and has a sleek design, but ... The Briggs and Stratton 44P777 is a 724 cc (44.2 cu·in) V-twin air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 44P777 engine has an OHV (overhead valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system. SPECIFICATIONS. The Briggs and Stratton 31P777 is a 501 cc (30.6 cubic inches) single-cylinder air-cooled 4-cycle internal combustion gasoline engine, manufactured by Briggs and Stratton. The Briggs 31P777 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor, pulse type fuel pump and ...The specific torque required for Briggs and Stratton head bolts is 18-22 ft/lbs (24-30 Nm). To ensure that you get the correct torque, use a good quality torque wrench …Briggs and Stratton Cylinder Head Bolt Torque. ... Below, you will find a table outlining the recommended cylinder head bolt torque specifications for Briggs and Stratton engines. Engine Model Head Bolt Torque (ft. lbs.) Head Bolt Torque (Nm) Model A, B, and C: 140-160: 190-220:Spec work has long been a point of contention between agencies and clients. Learn what these agency executives think the real problem is. Trusted by business builders worldwide, th...Torque requirement on 19.5hp briggs (model below) Model 31p677-0912-g5 Briggs & Stratton I’m putting the sump (bottom case) back on and want to know the torque I’m supposed to use on the bolts? Should I just use the criss cross pattern and just tighten them tight without torque wrench?Here are the torque specs and sequence for each engine type: 1.0L Engine: Step 1: Tighten the bolts to 44 inch-pounds (5 Nm). Step 2: Tighten the bolts to 89 inch-pounds (10 Nm). Step 3: Tighten the bolts to 18 lb-ft (25 Nm). Torque sequence: 8 4 1 5 9 7 3 2 6 10. 1.2L Engine:Mar 1, 2012 · A demonstration of how to install the cylinder head to the proper torque.Briggs and StrattonModel 130202Type 0500-01Code 75032507http://4strokerebuild.blogsp... ….

The complete source of specification information would be your engine's repair manual (Lookup Repair Manual by Model Number ). Knowing your small engine model number also provides basic specifications such as valve settings, bore, stroke, etc. For a general guide, our Replacement Engine Catalog PDF (Large file - 38 MB) contains all of our ...The Briggs and Stratton 289707 is a 465 cc (28.38 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 289707 engine has an L-head (side valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system.What is the Torque Specs for a 22 Hp Briggs And Stratton? The torque specs for a 22 hp Briggs and Stratton engine are as follows: The cylinder head bolts should be tightened to a torque of 40-45 Ft. Lbs., the intake manifold bolts should be torqued to 15-20 Ft. Lbs., the connecting rod cap screws should be tightened to 25-30 Ft. Lbs., and the flywheel nuts should be torqued to 50-55 ft lbs .Use these Bolts!So we got a Tracker-8 Snowblower in the shop, it needs a new head gasket, so I'm installing new head bolts to go with it.This particular mode...Apr 4, 2008 · briggs 8hp head bolt torque and sequence. I have a briggs flathead 8hp , and need to know the torque and sequence for the head bolts. Any help would be great. Thank You, Bill. Upvote. # 2. 04-04-08, 03:01 PM. 31YTech. Jul 5, 2020 · Quick & Simple!In today's video, I'm going over some lawn mowers that I'm getting ready to sell.Torquing the head bolts to the manufacturers spec is importan... The Briggs and Stratton 386777 Vanguard is a 627 cc (38.2 cu·in) V-twin air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 386777 engine has an OHV (overhead valve) design and a vertical PTO shaft. This engine is equipped with float type, side-draft carburetor and an electronic ignition ...Torque specifications for Briggs & Stratton engines can be found the current model’s product page on the company website. The search tool for repair manuals on BriggsandStratton.co...2. Apply a small amount of engine oil or ARP Ultra-Torque lubricant to the threads and the underside of the bolt heads. This will help achieve accurate torque readings and ensure smooth tightening. 3. Begin the tightening process by torquing all the head bolts to the Stage 1 torque specification of 30 ft. lbs. (41 Nm).The Briggs & Stratton 190cc 675 Series Push Mower Engine produces 6.75 ft.-lbs. Gross Torque. The 675 Series Engine is the more powerful version of the standard 650 Engine that Briggs and Stratton usually uses. It has a similar design as the 650, so if you are looking for repair guides to a 650 engine, these will work just as well. Head bolt torque specs for briggs and stratton, The torque sequence for a single cylinder Briggs and Stratton engine horizontal shaft head is increments of 2's for hp and 1's for head bolts. That makes 11 head bolts for an 18 hp., The Briggs and Stratton 31P777 is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 31P777 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor, pulse type fuel pump and an electronic ignition ... , B18B1 Head Bolt Torque Specs: Proper Torque for Engine Maintenance. About the B18B1 Engine The B18B1 engine is a popular four-cylinder, 1.8-liter engine produced by Honda. It is part of the B-series engines, which have…. Read More » B18B1 Head Bolt Torque Specs: Proper Torque for Engine Maintenance., Genuine Briggs & Stratton Cylinder Head ; Fits Most 319000, 31A000 Model Briggs & Stratton Engines ; Replaces Old ... To maximize engine life, meet original equipment spec's and provide full warranty ... (gaskets & bolts) you..." Read more "...Everything I needed was right there in the kit. The transaction was painless. Quick shipping ..., The Briggs and Stratton 31N707 is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 31N707 engine has an OHV (overhead) design, cast iron sleeve and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition ..., The Briggs and Stratton 31R777 is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 31R777 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system., When doing small engine repair and maintenance, you may need to find specific parts and specifications for your engine. You will need to know your small engine model if you’ve asked: What oil type does my engine need? What is the valve clearance for my small engine? What is the head bolt torque for my engine?, I'm looking for the head bolt torque specifications and valve clearance gap for a 18.5 HP Briggs and Stratton engine: Model - 3P7770, Type - 48E1, Code - 03. ... What is the head bolt torque for a 11 hp Briggs and Stratton engine, model 252707, type 0621-03 ..., Steps to Torque the Head Bolts. To properly torque the head bolts on your 19 hp Briggs and Stratton engine, follow these steps: 1. Start by cleaning the threads of the head bolts and the bolt holes in the engine block. This will ensure proper engagement and accurate torque readings. 2. Apply a small amount of engine oil or assembly lubricant to ... , To ensure the proper torque is applied to the head bolts of your Briggs and Stratton V Twin engine, follow these steps: 1. Start by cleaning the head bolt threads and the corresponding holes in the engine block to remove any dirt or debris. 2. Using a torque wrench, set the torque value according to the specifications provided in the table above., Briggs and stratton 21 hp model 331877 head bolt torque spec…. Hi, my name is***** will be assisting you. You will want to torque the head bolts to 225 in. lbs. using a crisscross pattern. I normally start with the top right corner and work around the head going from there to the bottom left and then moving over one bolt and across the head ..., Tightening torque specs: Air cleaner base: 6.0 Nm; 4.4 ft·lb: Alternator: 2.0 Nm; 1.5 ft·lb: Armature: 3.0 Nm; 2.2 ft·lb: Blower housings: 10.0 Nm; 7.4 ft·lb: Blower housing …, Step 2: Place the push rod guide on the cylinder head and attach the mounting bolts, using a torque wrench. Coat the rocker arm stud threads with a hardening sealant and install the rocker arm studs, using a socket wrench. Note: Consult your Authorized Briggs & Stratton Dealer for the proper torque settings for the mounting bolts and studs., Head Bolt Torque Specifications. To ensure the proper functioning of the engine, it is crucial to tighten the head bolts to the recommended torque specifications. The table below provides the head bolt torque specifications for the 18.5 hp Briggs and Stratton engine in both foot-pounds (ft. lbs.) and Newton meters (Nm)., Briggs-stratton model 071047-0 home generator genuine parts Briggs and stratton torque specs chart Briggs and stratton head bolt torque chart. ... Briggs and stratton torque specs chartCommon specifications for briggs & stratton all single cylinder l head Briggs and stratton torque specs chartBriggs & stratton service manual 1919-1981., To adjust a Briggs & Stratton governor, a person must adjust the static setting. This reduces the amount of play that in the governor. To adjust the governor, a wrench and a clamp ..., The Briggs and Stratton 311777 Intek is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 311777 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system. , To achieve the recommended torque for the head bolts, it is essential to use a torque wrench. Below is a table outlining the head bolt torque specifications for Briggs & …, Step-by-Step Guide for Head Bolt Torque Sequence. Follow these steps to correctly torque the head bolts on your Briggs and Stratton 17.5 HP engine: Start by tightening bolt number 1 to the specified torque of 220 ft. lbs. (298 Nm). Proceed to bolt number 2 and tighten it to 190 ft. lbs. (258 Nm). Continue with bolt number 3, torquing it to 210 ..., Apr 10, 2020 · My engine is a Briggs & Stratton / Intek #33R877. If you need a head gasket kit I picked mine up on Amazon - https://amzn.to/2RvGvAX (affiliate) , 2. Locate the cylinder head bolts on the engine. They are typically positioned around the perimeter of the cylinder head. 3. Using a torque wrench, set the torque value according to the specifications mentioned in the table above. 4. Begin tightening the bolts in a crisscross pattern. This ensures even pressure distribution and prevents warping ..., 14355 posts · Joined 2006. #2 · Nov 7, 2017. Well I can send you a Service Manual with most of that in it but the sump will require a special retro fit gasket kit and it will include the new torque specks for it. IF you should happen to have an original type gasket the last torque was 220 inch lbs. For Service Manual - put in proper format ..., The Briggs and Stratton 311777 Intek is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 311777 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system. , 2. Locate the cylinder head bolts on the engine. They are typically positioned around the perimeter of the cylinder head. 3. Using a torque wrench, set the torque value according to the specifications mentioned in the table above. 4. Begin tightening the bolts in a crisscross pattern. This ensures even pressure distribution and prevents warping ..., The Briggs and Stratton 350777 Vanguard is a 570 cc (34.8 cu·in) V-twin air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 350777 engine has an OHV (overhead valve) design and a vertical PTO shaft. This engine is equipped with float type, side-draft carburetor and an magneto electronic ... , Briggs and stratton 21 hp model 331877 head bolt torque spec…. Hi, my name is***** will be assisting you. You will want to torque the head bolts to 225 in. lbs. using a crisscross pattern. I normally start with the top right corner and work around the head going from there to the bottom left and then moving over one bolt and across the head ..., What is the Torque Specs for a 22 Hp Briggs And Stratton? The torque specs for a 22 hp Briggs and Stratton engine are as follows: The cylinder head bolts should be tightened to a torque of 40-45 Ft. Lbs., the intake manifold bolts should be torqued to 15-20 Ft. Lbs., the connecting rod cap screws should be tightened to 25-30 Ft. Lbs., and the flywheel nuts should be torqued to 50-55 ft lbs ., Aug 29, 2010 ... How To Torque Cylinder Head Bolts - EricTheCarGuy http://www.ericthecarguy.com/ Well this was a fun one to make., The Briggs and Stratton 28M707 is a 465 cc (28.38 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 28M707 engine has an L-head (side valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system., Briggs and Stratton is a small engine and machine manufacturer that makes equipment and sells parts for a variety of residential and commercial applications. OEM stands for origina..., Clean engine with a Gunk type product. Remove valve cover. Loosen bolts and remove old cylinder head. One bolt is located inside valve cover area. Remove old gasket and inspect and clean that surface. Attach new head with new gasket using existing bolts. Torque to 18'#s with a cross type pattern. Attach new rocker arms and push rods. Set... , Head Bolt Torque for B&S 21 HP Twin... I have a new to me Yard Machines riding mower I picked up this week. The left cylinder on the engine has an oil leak. I have the cowling off and what ever is leaking is on the bottom. I have the valve cover off and it looks like that gasket hasn't been leaking. I have another valve cover gasket and will be ..., The Briggs and Stratton 311777 Intek is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 311777 engine has an OHV (overhead) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system.