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Old 03-05-2004, 05:31 PM
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Default Low Compression Test Results

Motor:

B18C 84mm 9:1.

Results:

#1: 110
#2: 110
#3: 100
#4: 120.

Car runs fine. Valves are loud, and need to be adjusted. Gas sucks. less than 200 miles a tank.

why low #'s?
Old 03-05-2004, 07:00 PM
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Default Re: Low Compression Test Results (Turbo R)

its a little odd that all your numbers are so low, are you sure you conducted the test correctly?
Old 03-05-2004, 07:15 PM
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Default Re: Low Compression Test Results (94gsr4dr)

Thats what i was thinking also. Engine has to be warm due to expantion,take out all plugs first,open up throttle plate 100%,5 cranks,make shure batt has full charge or hook it up to a charger.
Old 03-05-2004, 07:41 PM
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Default Re: Low Compression Test Results (808b18c1boosted)

what should the compression be at for a healthy b18c1?
Old 03-05-2004, 07:45 PM
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Default Re: Low Compression Test Results (gsrboy18)

200-210
Old 03-05-2004, 07:46 PM
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Default Re: Low Compression Test Results (MaxSterling)

pull the fuse for the fuel pump too
Old 03-06-2004, 09:39 PM
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Default Re: Low Compression Test Results (Mase)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mase &raquo;</TD></TR><TR><TD CLASS="quote">pull the fuse for the fuel pump too</TD></TR></TABLE>

ill try that.

I took one plug out one at a time and did the test. would that matter?
Old 03-06-2004, 10:01 PM
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Default Re: Low Compression Test Results (Turbo R)

when i do mine, i pull them all out.
it also depends if your car is warm or not
and if your pusshing the gas pedal all the way down

i push pedall all the way down, (after the car has been driven a little)
then crank few times.
Old 03-06-2004, 10:04 PM
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Default

wow, thats no good, sounds too low....
Old 03-06-2004, 10:09 PM
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Default Re: (dunkd)

car was warm and been driven for awhile. pedal was all the way down.
Old 03-06-2004, 10:10 PM
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Default Re: (dunkd)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dunkd &raquo;</TD></TR><TR><TD CLASS="quote">wow, thats no good, sounds too low....</TD></TR></TABLE>

wow. ok
Old 03-06-2004, 10:12 PM
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Default Re: (Turbo R)

could the T-Belt be off a tooth or so? The numbers are fairly consistent ...
Old 03-07-2004, 07:48 AM
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Default Re: Low Compression Test Results (Turbo R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Turbo R &raquo;</TD></TR><TR><TD CLASS="quote">Valves are loud, and need to be adjusted. </TD></TR></TABLE>That could be your clue.
Old 03-07-2004, 08:23 AM
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Default Re: Low Compression Test Results (earl)

I have similar compression as you Weisco 9:1 and Im gettting

150's across
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