My Tractor Forum banner

1 - 3 of 3 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter #1
Hello, Just wondering about testing the compression on a Wisconsin TRA-10D. It has about 60 psi. Does this seem normal? I heard/read that the engine has a compression release and you cannot accurately test the compression? I was wondering if there is a way. The tractor runs but just seem like it does not have much power under load. It may be a carb/governer issue also. I'm not sure what to do for her.
 

·
Eleven Year Site Sponsor
Joined
·
2,821 Posts
Because it does have a compression release, instead of a compression test, you should do a leakdown test. That will tell you by implication if you have bad rings/poor valve seating. If it leaks past the valves, you will be able to hear it. If it leaks past the rings, the air will go into the crankcase, and you can tell that too. The test is done with the piston at BDC, no cranking, and the valves closed.

Doug
 
1 - 3 of 3 Posts
Top