how do my compression numbers look
05-22-2004, 09:27 AM
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how do my compression numbers look
Since my car started smoking a lil bit when the car warms up and I drive I decide to see what could be the problem. When it smokes the smoke is blue.
So I did a test here are the numbers
250
250
250
250
So I guess if these look right then it must be my seals in my turbo. Any thoughts
Motor is a stock b18c5
Modified by FOrSfEd at 8:51 PM 5/23/2004
So I did a test here are the numbers
250
250
250
250
So I guess if these look right then it must be my seals in my turbo. Any thoughts
Motor is a stock b18c5
Modified by FOrSfEd at 8:51 PM 5/23/2004
05-22-2004, 10:27 AM
#4
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Re: how do my compression numbers look (FOrSfEd)
try a leak down test it might show you some thing diffrent, i did a comp test on my buddy car and it was ok, but the leak down showd 65% in #4 and he was burning oil pritty bad, but the test only takes like 15mins and is a good pice of mind and can tell you alot about whats going on in the motor 
05-22-2004, 11:16 AM
#5
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Re: how do my compression numbers look (FOrSfEd)
the smoke is probably coming from the oil drain.mine smoked during warm-up until i moved the oil drain to the block.try running a lower oil level.the problem is that if you have your drain in the pan,the oil level is usually to high.
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05-22-2004, 12:46 PM
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Re: how do my compression numbers look (FOrSfEd)
yea those numbers are good, blue smoke is usually oil return/turbo related as stated above. aslo im not sure but i think a crappy pcv system can cause some blue smoke as well.
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05-22-2004, 02:54 PM
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Re: how do my compression numbers look (FOrSfEd)
Those numbers seem a tad bit low to me. How much boost you running on it? I could be like the previous guy said about the pcv on the smoke but your copression rings could be a little weak also. May wanna do a leak down test just to be sure. A C5 is an expensive thing to replace if you take it too far.
05-22-2004, 03:38 PM
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Re: how do my compression numbers look (lexvdub1)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lexvdub1 »</TD></TR><TR><TD CLASS="quote">whats ttt? 
</TD></TR></TABLE>
To The Top
</TD></TR></TABLE>To The Top
05-23-2004, 08:27 PM
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Re: how do my compression numbers look (FOrSfEd)
Will a compression or leakdown test actually test the oil ring? The top two rings hold back the compression and Ive been told the oil ring can have problems but not show up on a leakdown or compression test.
05-24-2004, 05:32 AM
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Re: how do my compression numbers look (FOrSfEd)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FOrSfEd »</TD></TR><TR><TD CLASS="quote">I would like totap my oil drain into the block just scared about messing something up.</TD></TR></TABLE>
What is the advantage of doing this rather than just tapping the oil pan?
What is the advantage of doing this rather than just tapping the oil pan?
05-24-2004, 08:10 AM
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Re: how do my compression numbers look (Muckman)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Muckman »</TD></TR><TR><TD CLASS="quote">Will a compression or leakdown test actually test the oil ring? The top two rings hold back the compression and Ive been told the oil ring can have problems but not show up on a leakdown or compression test.</TD></TR></TABLE>
It is very possible that a compression test wouldn't show oil ring wear or damage.
It is very possible that a compression test wouldn't show oil ring wear or damage.
05-24-2004, 08:47 AM
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Re: how do my compression numbers look (HybridHatch88)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HybridHatch88 »</TD></TR><TR><TD CLASS="quote">
What is the advantage of doing this rather than just tapping the oil pan?</TD></TR></TABLE>
The oil level would never be high enough to drain back into your turbo if your line is up there on the block. I think it is a great idea I'm just kinda hesitant.
What is the advantage of doing this rather than just tapping the oil pan?</TD></TR></TABLE>
The oil level would never be high enough to drain back into your turbo if your line is up there on the block. I think it is a great idea I'm just kinda hesitant.
05-24-2004, 08:54 AM
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Re: how do my compression numbers look (FOrSfEd)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FOrSfEd »</TD></TR><TR><TD CLASS="quote">
The oil level would never be high enough to drain back into your turbo if your line is up there on the block. I think it is a great idea I'm just kinda hesitant.</TD></TR></TABLE>
O okay, seems like a good idea, but tapping the block would make me nervous
The oil level would never be high enough to drain back into your turbo if your line is up there on the block. I think it is a great idea I'm just kinda hesitant.</TD></TR></TABLE>
O okay, seems like a good idea, but tapping the block would make me nervous
05-24-2004, 09:23 AM
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Re: how do my compression numbers look (RyanCivic2000)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 »</TD></TR><TR><TD CLASS="quote">
It is very possible that a compression test wouldn't show oil ring wear or damage.</TD></TR></TABLE>
My beater is a 91 LS and it burns oil like its a 2 stroke. No doubt its the rings as the head is new. Compression test are 190 +/- 2 in each cylinder. Leakdown is less than 5% loss.
It is very possible that a compression test wouldn't show oil ring wear or damage.</TD></TR></TABLE>
My beater is a 91 LS and it burns oil like its a 2 stroke. No doubt its the rings as the head is new. Compression test are 190 +/- 2 in each cylinder. Leakdown is less than 5% loss.
06-01-2004, 07:38 AM
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Re: how do my compression numbers look (Muckman)
could get a moroso oil pan, baffled and has a high mount spot for the oil return line. They are a little expensive, but to tap into the block would require it being out of the car with it broken down, so cheaper than that.
06-01-2004, 09:02 AM
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Re: how do my compression numbers look (seen4ever)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seen4ever »</TD></TR><TR><TD CLASS="quote">could get a moroso oil pan, baffled and has a high mount spot for the oil return line. They are a little expensive, but to tap into the block would require it being out of the car with it broken down, so cheaper than that.</TD></TR></TABLE>
If you get that oil pan you will have to put less oil in your car for it to be filled, a few people on this board killed the seals on there turbos by having that pan and filling it above the return. . .
If you get that oil pan you will have to put less oil in your car for it to be filled, a few people on this board killed the seals on there turbos by having that pan and filling it above the return. . .
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