Subject	Your 2 & 4 numbers are too low compared to the others.
Posted by	ZUL8TR on April 13, 2011 at 6:42 AM
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In Reply To	Changed spark plugs and did a compression test... posted by Adamo on April 12, 2011 at 10:41 PM
Message	especially #2. Usually compression numbers differing by less than 10% among cylinderes is acceptable. Based on that 10% of 170 = 17 so the lowest cylindere acceptable would be 163 but 161 marginally ok. Did you have throttle full open during the compression test? ZUL8TR in Orlando,FL
Follow Ups	Changed spark plugs and did a compression test... - Adamo 22:41:27 04/12/11 Compression increase by adding oil to that cylindere>> - ZUL8TR 06:37:23 04/13/11 I changed the FPR and dampner last year, so really doubt its - Adamo 08:49:37 04/13/11 Your 2 & 4 numbers are too low compared to the others. - ZUL8TR 06:42:57 04/13/11 Sh*t I forgot to have my brother push the throttle - Adamo 07:13:41 04/13/11 a common problem with people doing compression tests is - Carlos Ramirez 06:50:27 04/13/11 Bingo, I fall into number 1. I completely forgot - Adamo 08:51:55 04/13/11 There is no reason to open the throttle bodies on a Z32 - Bernie (NoVA) 09:05:36 04/13/11 yap sounds right.. either way is good. (n/m) - Carlos Ramirez 10:02:48 04/13/11 Ok so no need to redo the test, I had the balance tube off.. - Adamo 12:06:35 04/13/11 yep (n/m) - aliaZ 12:27:24 04/13/11 Re: Changed spark plugs and did a compression test... - Huber300zx 08:00:53 04/13/11 Thanks, I'll check that too (n/m) - Adamo 08:40:06 04/13/11 Besides all the things mentioned below - you could just - jzack 18:25:00 04/13/11 Thanks for the tip, I will definitely look into it. (n/m) - Adamo 18:44:11 04/13/11
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