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Re: compression testing S38 engine (archive)
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Posted by Todd Kenyon on November 12, 2001 at 10:56:06:

In Reply to: compression testing S38 engine posted by Art on November 11, 2001 at 20:51:58:

I used an analog gauge also got 190 for all cylinders, took about 7 cranks. Engine must be warm, throttle must be completely open, recommend removing boot between AFM and plenum, remove all plugs. Test each cylnder 2-3 times (use bleed valve on gauge. I had my wife just turn the key and hold throttle down (ignition disabled)


Recently performed compression test on my M5 and obtained some bizzare results!!Could someone please advise if special consideration is required when running test??Please advise normal procedure and expected range of results. THANKS




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