QuestionQUESTION: Dear sir, Ihave a 20 hp v twin B&S which I am rebuilding. My question is how do I set the valve timing etc. there is mark on the cam gear which i can line up with the mark on the governor gear, but no mark on the crank. Does it use the keyway as mark or do I refit the piston & rod and find tdc on No. 1? Hope all this makes sense. Regards, Noel
ANSWER: Hello Noel:
Remove (it should slide off) the Crankshaft Gear and you will most Likely See the Crankshaft Mark. Sometimes the Timing Mark is Hidden because of this. If you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Thanks.
Good Luck
Respectfully
John
PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Thanks.
Respectfully
John
---------- FOLLOW-UP ----------
QUESTION: Thanks John, Found Crank mark, it lines up when crank and cam gear are in vertical position. Now the question is how about the governor mark? Sorry to be a nuisance but help is scarce in outback Australia. Regards, Noel
AnswerHello Again Noel:
No Worries. You are Not a Nuisance, just Lost. lol. The Governor is Not Timed. It is Set when the Governor Arm and Carburetor are Attached on the Outside of the Engine. **When the Oil Pan is Removed, you can See the Governor Resting on Top of the Cam Gear. Lift Off and Replace with a New Governor. Check the Engine Block for Debris from the Old Governor and Wipe the Inside of the Block With a Rag, Until Clean. Set the Governor So it is Resting on the Governor Shaft and Carefully Replace the Oil Pan. Remember to Replace the Oil Pan Gasket. If the Crankshaft Seal Was Not Leaking, then Leave it Alone. It Should be OK. You can Easily Replace it While Mounted on the Machine if Required Later. Make Sure the Governor Stays in Contact with the Governor Shaft while Replacing the Oil Pan. Re - Mount the Engine to the Machine. Refill With Oil. These Instructions are Basic. Your Internal Governor May Differ.** **To Reset the Governor; Loosen the Governor Arm Bolt and Turn the Governor Shaft Clockwise Until it Stops. Using the Governor Arm Hold the Carburetor to Full Throttle. Now with the Shaft Full Clockwise and the Governor Arm and Carburetor Held at Full Throttle, Tighten the Governor Arm Bolt. If the Engine Still Runs Full Throttle, then Reverse the Rotation of the Governor Shaft, but Still Hold the Carburetor at Full Throttle with the Governor Arm. If it Still Runs at Full Throttle, then Check the Internal Governor.** If you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Thanks.
Good Luck
Respectfully
John
PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Thanks.
Respectfully
John
