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View Full Version : How do I find top dead center


emily1016
Jun 28, 2007, 08:23 AM
I have a mtd riding mower with a 14.5 briggs and stratton engine. It breaks shear pins every time I try to start it. I need to set the overhead valves on it. I know how to set valves with the feeler gauge but I'm not sure what the procedure is for finding top dead center before I set them. Please help! Thank You!

newaukumdon
Jun 28, 2007, 10:17 AM
Remove spark plug and bring piston all the way to the top, by the way a loose pulley under the engine will cause the same problem.

Don

newaukumdon
Jun 29, 2007, 09:03 PM
You asked how to find TDC< what don't you understand. The answer is bring the piston to the top. If you are still confused clarify what you would like to know.

Don

emily1016
Jun 30, 2007, 04:10 PM
After Moving Piston To Top Of Cylinder Do I Set The Valves On The Exhaust Stroke Or Intake Stroke? Thanks

newaukumdon
Jul 1, 2007, 09:43 PM
Sorry, let me clarify. Rotate engine until both valves are compltely closed and piston is on top. This is where you would set the clearance. Compression stroke.

Don

emily1016
Jul 2, 2007, 05:09 PM
Sorry, let me clarify. Rotate engine until both valves are compltely closed and piston is on top. This is where you would set the clearance. Compression stroke.

Don TO DON, THANK YOU VERY MUCH

MOWERMAN2468
Jul 4, 2007, 09:35 AM
Hold On Her, Emily, They Are Wrong, You Can Find Tdc That Way,(both Valves Closed, And Piston Closest To The Opening Where You Screw In The Spark Plug, However, You Must Turn The Flywheel 1/4" Past Tdc On A Briggs And Stratton To Set The Valves Correctly.
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Thanks,
Mowerman2468