Rings or Valve Seals bad?
07-22-2006, 08:37 PM
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Rings or Valve Seals bad?
My car has been running like crap the past couple of weeks and I noticed today that there was a lot of smoke blowing out of the valve cover breather, which means blow by. So I did a compression test and #4 was down at about 90, the rest were at 180. So how can I tell if its the piston rings or valve seals that are bad?
07-23-2006, 04:22 PM
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Re: Rings or Valve Seals bad? (vxturbociv)
do a leak down it only takes a few minutes.
if the compression goes up after putting in the oil its the rings .
if the compression goes up after putting in the oil its the rings .
07-23-2006, 06:27 PM
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Re: (Hcivic02)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vxturbociv »</TD></TR><TR><TD CLASS="quote"> I noticed today that there was a lot of smoke blowing out of the valve cover breather, which means blow by. So I did a compression test and #4 was down at about 90, the rest were at 180. So how can I tell if its the piston rings or valve seals that are bad?</TD></TR></TABLE>
Do a leakdown test, but judging form your compression test results, I'd say rings...the cyl that is at 90 psi is hurting.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nekoabandoned »</TD></TR><TR><TD CLASS="quote">do a leak down it only takes a few minutes.
if the compression goes up after putting in the oil its the rings .</TD></TR></TABLE>
Do a leakdown test, but judging form your compression test results, I'd say rings...the cyl that is at 90 psi is hurting.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nekoabandoned »</TD></TR><TR><TD CLASS="quote">do a leak down it only takes a few minutes.
if the compression goes up after putting in the oil its the rings .</TD></TR></TABLE>
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