Bad compression numbers and...

Thread Tools
 
Search this Thread
 
Old Mar 29, 2004 | 06:22 PM
  #1  
SSS2000's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jan 2003
Posts: 524
Likes: 0
From: Ohio
Default Bad compression numbers and...

I noticed smoke (oil) coming from my breather filter, so I did a compression test tonight. When I pulled the plugs I noticed an oil residue on the #2 & #3 plugs. Here are the compression test numbers...
185-70-70-185 This is a b18b. I guessing this is probably ringlands, right?
Please don't tell me this could be anything more than just rings...
Reply
Old Mar 29, 2004 | 07:14 PM
  #2  
SSS2000's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jan 2003
Posts: 524
Likes: 0
From: Ohio
Default Re: Bad compression numbers and... (MilanoRedLST)

anyone?
Reply
Old Mar 30, 2004 | 04:52 AM
  #3  
SSS2000's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jan 2003
Posts: 524
Likes: 0
From: Ohio
Default Re: Bad compression numbers and... (MilanoRedLST)

TTT...
Reply
Old Mar 30, 2004 | 05:20 AM
  #4  
CivicSoul's Avatar
Honda-Tech Member
 
Joined: Mar 2001
Posts: 310
Likes: 0
From: Tallahassee, fl, usa
Default Re: Bad compression numbers and... (MilanoRedLST)

If you just did a hard pull and it happened, than yes, it is probably your ringlands. If it has been getting worse, it might be your valve seals?
Reply
Old Mar 30, 2004 | 06:16 AM
  #5  
earl's Avatar
Honda-Tech Member
 
Joined: Jun 2001
Posts: 8,120
Likes: 3
From: Irvine, CA, usa
Default Re: Bad compression numbers and... (MilanoRedLST)

You really need to check that the cylinders did not become egg shaped or balooned out. You CANNOT do this by looking at them.
Reply
Old Mar 30, 2004 | 06:40 AM
  #6  
Mad Cow's Avatar
Junior Member
 
Joined: Jan 2004
Posts: 645
Likes: 0
From: Not in the United Kingdom.
Default Re: Bad compression numbers and... (earl)

What causes them to become out of round? What's the best way to check?
Reply
Old Mar 30, 2004 | 07:11 AM
  #7  
SSS2000's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jan 2003
Posts: 524
Likes: 0
From: Ohio
Default Re: Bad compression numbers and... (CivicSoul)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicSoul &raquo;</TD></TR><TR><TD CLASS="quote">If you just did a hard pull and it happened, than yes, it is probably your ringlands. If it has been getting worse, it might be your valve seals?</TD></TR></TABLE>

It has been pretty consistant...I'll probably take the head off this weekend when I have some time.

Can I check the shape of the cylinders with calipers?
Would it be wise to just buy a new block and drop in some forged pistons and rods?
Reply
Old Mar 30, 2004 | 12:50 PM
  #8  
SSS2000's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jan 2003
Posts: 524
Likes: 0
From: Ohio
Default Re: Bad compression numbers and... (CivicSoul)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicSoul &raquo;</TD></TR><TR><TD CLASS="quote">If you just did a hard pull and it happened, than yes, it is probably your ringlands. If it has been getting worse, it might be your valve seals?</TD></TR></TABLE>

How would I know if it was valve seals?
Reply
Old Mar 30, 2004 | 01:14 PM
  #9  
earl's Avatar
Honda-Tech Member
 
Joined: Jun 2001
Posts: 8,120
Likes: 3
From: Irvine, CA, usa
Default Re: Bad compression numbers and... (MadCow)

Cylinders 2 & 3 always run hotter than 1 & 4. That is why problems like this show up there. You have to have a machine shop check your bore diameters. They need to be checked all down the bore.
Reply
Old Mar 30, 2004 | 02:08 PM
  #10  
SSS2000's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jan 2003
Posts: 524
Likes: 0
From: Ohio
Default Re: Bad compression numbers and... (earl)

thanks earl
Reply
Old Mar 30, 2004 | 02:41 PM
  #11  
gunmetalcivic's Avatar
Honda-Tech Member
 
Joined: Mar 2004
Posts: 994
Likes: 0
From: OC
Default Re: Bad compression numbers and... (MilanoRedLST)

i had the same problem. smoke coming out and oil on #3 spark plug. it turned out to be a bad ring landing.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
usdmblackcivic
Acura Integra Type-R
4
Sep 4, 2010 11:56 PM
hondaeg8
Honda Civic / Del Sol (1992 - 2000)
10
Jul 25, 2004 11:13 AM
EF8_SiR
Honda CRX / EF Civic (1988 - 1991)
6
Jul 20, 2003 10:24 PM
Aeka GSR
Forced Induction
5
Oct 4, 2002 11:44 PM




All times are GMT -8. The time now is 11:48 AM.