Question about Briggs & Stratton Measuring Tools & Sensors
I doubt it about weak spring, valves may need adjusting. use a .006 feeler gage on intake and exhaust both. with 1 tappet all the way down check the one thats up.
Posted on Nov 29, 2013
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Posted on Jan 02, 2017
multi-grade will be fine it realy dont need a pricy oil in it this kind of engine will run on dirty cooking oil,,with or with out the chips still in it?
Posted on Mar 29, 2010
Perform a compression test. As these engine age they are notorious for getting carbon under the exhaust valve heat in the seat area. What happens is you get a tiny piece of carbon under the head.... the valve cycles with the cylinder but does not close. Actually it can be either the intake or the exhaust valve but more often that not it is the exhaust valve that is the culprit. Worst case you hand lap the valve to the valve seat with grinding compound.
Another thing it can be is a hole in the piston. (VERY rare)
Both would cause a compression test to fail. You don't even need a pressure gauge. You can sacrifice a small paint brush handle and compare the good cylinder to the bad one by the amount of pressure you get but holding the brush gently in the spark plug hole. Just make sure your back yard pressure checker (paint brush handle) does not protrude into the cylinder so far that it can be hit by the piston. I am thinking you will have one very strong cylinder and one very weak cylinder. It is not a hard fix... it is a matter of making sure the valves seat properly on the bad cylinder. Now if the piston has a hole in it... now you talking much more work. I may be able to find a service manual for you if you discover there is a hole in the piston. Not sure if the service manual will be free or a purchase item because I have not looked yet.
Thanks for choosing FixYa.
Posted on Jul 27, 2010
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