Briggs & Stratton Riding Mower Engine Head Gasket #794114



This video provides step-by-step instructions for replacing the head gasket on Briggs and Stratton small engines, commonly found in Toro riding lawn mowers. The most common reason for replacing the gasket is when making repairs to the engine.

Click here to purchase Part #794114: https://www.repairclinic.com/PartDetail/Head-Gasket/794114/1611230?TLSID=1876

Additional small engine repair, troubleshooting tips, help with finding your model number, and part replacement videos: https://www.repairclinic.com/RepairHelp/Small-Engine-Repair-Help?TLSID=1876

All of the information in this gasket replacement video is applicable to the following brands: Briggs & Stratton, Toro

Tools used: 1/4” socket or nut driver, 3/8” socket or nut driver, 5/8” socket or spark plug wrench, 1/4” hex bit, large flat-head screwdriver, T20 Torx bit screwdriver, torque wrench, gauge

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27 thoughts on “Briggs & Stratton Riding Mower Engine Head Gasket #794114

  1. You forgot the spill icon when moving the carb around. Unless newer carbs have a way of not dumping gas into the throttle body when moving them around, or sending it through the overflow tube. It would be a good idea to also remove the carbon from the top of the piston and valves. Also check the valves for spin while you're at it.

  2. the new one makes it look so easy… well it's not easy working with an older lawnmower that hasn't ran for 3 years now with an exploded part inside the head

  3. I have two questions:
    (1). What type sealant did you use to attach the valve cover to the cylinder head?
    (2). At 6:30, can you explain what you are doing with the screw driver in the piston chamber?

  4. Thank you for saving me $350 to fix my John Deere. I watched your video about 10 times before I opened my deere and at each step everything was as you explained. I got the gasket and sealant from Amazon, and the rest was just as you presented. This was great!

    Tom

  5. Unscrewing the head bolts in this video is wrong. You are supposed to break the bolts on the head about a 1/4 of a turn for each bolt then go back then unscrew the bolts all the way. Doing this keeps the head from warping.

  6. Well I bought a new click torque wrench, I wasn't aware of ft inch so I set it 150 ft lbs (scale I use for torquing my tire etc) and broke all eight studs, as they snapped I thought that was wrench releasing at 150 ft lbs.

  7. Repair Clinic, My engine has no power and it's a 15HP B/S OHV engine and it don't show smoke coming out of the oil filler. but I do have lots of oil under the cylinder, Would this indicate that I may have a blown head gasket? I have changed the plug, carburetor, fuel line, fuel filter and air filter and still have NO power, engine start good and runs well until you try to cut grass, 9/24/2016. Thanks Stan

  8. You forgot to mention to resurface the cylinder head on a wide, flat belt sander or large diameter sanding disc to remove warpage and restore flatness, and to prevent another blown or leaking head gasket.

  9. Ok I need some help. I have a Briggs and Stratton v twin 23 hp engine. I just replaces both cylinder heads with brand new gaskets tightened them up by specifications, over hauled the carburetor, the carburetor was in great condition and completely cleaned. Mower does not backfire anymore and runs great but still getting smoke out of the muffler and I checked the oil and it is not over filled. Need help please.

  10. My father have that cylinder catch the fire on muffler Not many mileage garden tractor he sold to me I take this garden tractor to my garage look inside push rod guide been bend loose of rocker arm push rod full off is hard to get TLC timer clock and seen the off the piston find the rings breakdown haft cutter rings on the piston go to the push rod loose of rocker arm hit by push rod guide to the crankshaft motor is bad because somebody push to hard from father buy other people very luck for push rod could not break bend the rod of aluminium some are steel who know the job engine we have to be rebuild seen find out cylinder gauge work and grinder nose cylinder that why bad manufacturer lower cost for sale engine of the push rod on the valve rocker arm moving part I throw them away trash of the piston is No good why is green cannot use it to be cleaner up ………………..

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