| [GMCnet] Opinions on Compression Check [message #156959] |
Mon, 16 January 2012 15:29  |
Gary Berry
Messages: 1002
Registered: May 2005
Karma:
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Senior Member |
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Hey All;
Just did a compression check on the 455 in the Stretch after
warming it up. Over the years the coach has been losing power and the
mileage is down to 6 mpg while towing. Will check other things out,
but this was the first thing to do. Here's the numbers...
First number is cylinder, second number is Without Oil, third number is with Oil
01 - 110, 120 02 - 120, 145
03 - 120, 130 04 - 130, 150
05 - 140, 150 06 - 140, 150
07 - 80, 120 08 - 110, 130
I got my ideas, but what do others think of these numbers??? Let me know...
--
Gary and Diana Berry
73 CL Stretch in Wa.
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