Gasket-cylinder Head 794114

Removed the head and cleaned the surface. Removed the pan gasket and cleaned the surface. Torqued head and reset the push rods to specs. Replaced shear key and reset the magneto gap.

1. Remove overhead valve cover.
2. Remove push rods.
3. Remove old spark plug.
4. Remove intake and exhaust manifolds.
5. Remove engine head bolts and head.
Used solvent to clean carbon (baked in coke) from head, valves, piston head and exhaust port. Cleaned gasket surfaces and installed head, push rods, intake and exhaust manifolds. Checked valve clearances and installed valve rocker cover with gasket and sealant. This was a 21 hp B&S Intek engine. This must be done every 2 to 3 grass cutting seasons (book says every 300 hours) to keep these engines from burning oil and for them to run smoothly.

Disassembled the top of the engine and removed the head. Replaced the gasket and reassembled. Works great now!

1. Disassembled engine cover components.
2. Removed head.
3. Replace head defective head gasket.
4. Cleaned components.
5. Installed new head gasket.
6. Re-assembled engine and torqued head bolts.
7. Started and tested engine, good repair!

I removed the engine from lawn tractor and disassembled and inspected and cleaned and organized parts. I honed the cylinder lightly because it was still in great condition, but I felt it needed that for the new ring set. The old rings were fine, but the engine is 14 years old so while I had it apart, I felt that was best. Everything went back together as expected and the engine runs really well. the only thing that is noteworthy was torquing the bolts and being very careful putting the sump on, so you don't damage the crank seal.

1. Removed engine compartment hood.
2. Removed the 4 screws attaching the top engine air flow housing.
3. Removed 4 valve cover bolts.
4. Removed exhaust pipe and intake manifold from cylinder head.
5. Removed all cylinder head bolts.
6. Removed the cylinder head and push rods.
7. Removed the old head gasket
8. Carefully clean the head and valve cover gasket surfaces. Use a brass wire wheel in a drill.
9. Wipe head and valve cover matting surfaces with lacquer thinner to remove all oil.
Install the head gasket and slip on the head, adding 2 bolts to support it while you reinstall the push rods. Make sure the aluminum rod is on the intake valve. Make sure the metal caps are still on the top of each valve stem.
10. Snug head bolts then vhf torque to 20 foot pounds. Alternate bolt tightening.
11. Check intake and exhaust valve clearances.
12. Install all other gaskets and valve cover, exhaust pipe, and intake manifold.
13. Reinstall the air shroud.
14. 1einstall the hood.
15. Drain old oil add new. Change oil filter.

completely disassembled engine except for crank and flywheel and reassembled using new parts and gaskets I also reseated the valves while the head was off

removed head, installed gasket, re-installed, done

Remove and disassemble engine.
Remove broken rod and pieces and check for any other damage.
Refinish Crank journal with emery cloth.
Attach new rod to piston and install in engine.
Reassemble all components and use new gaskets where needed.

Replaced piston rings, replaced push rods and guide, cleaned and lapped valves, adjusted valves, and replaced carburetor. I did not put enough torque on the flywheel bolt and sheared off 2 keys before looking for information online and most information said to torque bolt to 120 ft. lbs. and then go a little further. Did this, problem was solved, and engine runs great.