Compression problem.
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Joined: Dec 2005
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From: St. Clair Shores, Mi, USA
Compression problem.
I plan on boosting my ZC so I did a compression test.
cyl#1-180
cyl#2-155
cyl#3-175
cyl#4-180
ok, #2 is low, so I did a leak down test to see where i was losing the compression and it seemed fine with 120 psi going into it, no more hiss than any of the other cylinders and I couldnt tell at all where it would be leaking. Anyone have any ideas where I could be losing the compression or another way I could check to find out? thanks.
cyl#1-180
cyl#2-155
cyl#3-175
cyl#4-180
ok, #2 is low, so I did a leak down test to see where i was losing the compression and it seemed fine with 120 psi going into it, no more hiss than any of the other cylinders and I couldnt tell at all where it would be leaking. Anyone have any ideas where I could be losing the compression or another way I could check to find out? thanks.
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Joined: Jun 2004
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From: some where in the 619
Re: Compression problem. (Albes)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Albes »</TD></TR><TR><TD CLASS="quote">I plan on boosting my ZC so I did a compression test.
cyl#1-180
cyl#2-155
cyl#3-175
cyl#4-180
ok, #2 is low, so I did a leak down test to see where i was losing the compression and it seemed fine with 120 psi going into it, no more hiss than any of the other cylinders and I couldnt tell at all where it would be leaking. Anyone have any ideas where I could be losing the compression or another way I could check to find out? thanks.</TD></TR></TABLE>im not sure of a better way to test the compression. I know #2 is low...but it's still in tolerance (all cylinder's need to be within 20% of each other)
cyl#1-180
cyl#2-155
cyl#3-175
cyl#4-180
ok, #2 is low, so I did a leak down test to see where i was losing the compression and it seemed fine with 120 psi going into it, no more hiss than any of the other cylinders and I couldnt tell at all where it would be leaking. Anyone have any ideas where I could be losing the compression or another way I could check to find out? thanks.</TD></TR></TABLE>im not sure of a better way to test the compression. I know #2 is low...but it's still in tolerance (all cylinder's need to be within 20% of each other)
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Joined: Dec 2004
Posts: 2,636
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From: Chicago area, us
Re: (RACEPAK)
Nah its not the headgasket, i would lead more to a valve or just waekening rings.
**** i have been running 10psi on a stock b16 with under 120psi in all cylinders and i am fine......... for now
**** i have been running 10psi on a stock b16 with under 120psi in all cylinders and i am fine......... for now
Thread Starter
Honda-Tech Member
Joined: Dec 2005
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From: St. Clair Shores, Mi, USA
Re: (urbansi)
I checked all the valves to make sure that it wasnt an adjustment that was causing a leak, they were all adjusted correctly, so its either a valve not seating properly or yeah weakening rings. oh well, boost will bring that compression up. 
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wrenchin'
Joined: Sep 2003
Posts: 3,643
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From: Full of shit in NY, USA
Re: (Albes)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Albes »</TD></TR><TR><TD CLASS="quote">I checked all the valves to make sure that it wasnt an adjustment that was causing a leak, they were all adjusted correctly, so its either a valve not seating properly or yeah weakening rings. oh well, boost will bring that compression up. </TD></TR></TABLE>
boost it till it pops, then find out why it had low compression!
</TD></TR></TABLE>boost it till it pops, then find out why it had low compression!
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Joined: Aug 2001
Posts: 8,613
Likes: 1
From: Naples, Fl, USA
Re: Compression problem. (Albes)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Albes »</TD></TR><TR><TD CLASS="quote">I plan on boosting my ZC so I did a compression test.
cyl#1-180
cyl#2-155
cyl#3-175
cyl#4-180
ok, #2 is low, so I did a leak down test to see where i was losing the compression and it seemed fine with 120 psi going into it, no more hiss than any of the other cylinders and I couldnt tell at all where it would be leaking. Anyone have any ideas where I could be losing the compression or another way I could check to find out? thanks.</TD></TR></TABLE>
What % was #2 leaking?
cyl#1-180
cyl#2-155
cyl#3-175
cyl#4-180
ok, #2 is low, so I did a leak down test to see where i was losing the compression and it seemed fine with 120 psi going into it, no more hiss than any of the other cylinders and I couldnt tell at all where it would be leaking. Anyone have any ideas where I could be losing the compression or another way I could check to find out? thanks.</TD></TR></TABLE>
What % was #2 leaking?
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Joined: Jan 2004
Posts: 2,829
Likes: 2
From: Detroit
Re: Compression problem. (VTC_CiViC)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTC_CiViC »</TD></TR><TR><TD CLASS="quote">What % was #2 leaking?</TD></TR></TABLE>
we did it the old school way.... air line directly into the spark plug hole. Heard some air coming out the oil cap, thats it.
we did it the old school way.... air line directly into the spark plug hole. Heard some air coming out the oil cap, thats it.
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