Re: [MV] M 151 A2 Engine -testing before buying

From: Muttguru@aol.com
Date: Fri Jan 26 2001 - 11:38:42 PST


In a message dated 26/01/01 16:56:55 GMT Standard Time,
denver.farley@monroe.army.mil writes:

<< I am not sure what the readings should be, perhaps we could pose this
 question to the List as follows:
 
 Does anyone know what the engine cylinder compression readings should be for
 an M151A2 engine? >>

Hello Denver and Anith.....

the trusty ol' TM (-20) says that "Compression at cranking is 135 to 145
psi".

It goes on to say (page 2-87) that:-

"the lowest reading cylinder should be within 25psi of the highest reading
cylinder. The minimum allowable pressure reading is 85psi.".
The TM also warns that valve clearance must first be checked at 0.015 inch.

Hope this helps.

Kind regards.
Ken



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