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-   -   Compression reading for a 4.5 (http://www.peachparts.com/shopforum/showthread.php?t=125744)

george_hannah 06-12-2005 10:04 PM

Compression reading for a 4.5
 
Hi Friends,

I'm looking at a 1980 450SL to purchase. What should the compression reading range be for a good motor?

Thanks,

-George

BobK 06-13-2005 12:00 AM

Manual is kinda funny. It say min: 125 for normal, 110 for low. Max difference between cylinders is 22psi. This is for 8 rotations.


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