TeamSwift

Home of the Suzuki mini-compacts ! Your Home for all things Suzuki Swift, Geo Metro, Holden Barina, Chevy Sprint, Pontiac Firefly, and Suzuki Cultus. TeamSwift is a technical performance oriented community!
It is currently Thu Nov 23, 2017 5:57 pm

Underbody braces, turbos and more!

All times are UTC - 5 hours




Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: compression
PostPosted: Wed Mar 11, 2015 8:10 pm 
Offline

Joined: Wed Nov 23, 2011 9:03 am
Posts: 4
Location: United States
Hi all, have a strange problem on my 1992 GT, did a compression test and 3 of the cylinders came out at 220 psi wet, dry was 200,
the last one dry was 220 and wet 250 i am very confuse has any one else ran into this? another thing is that cylinder has a dead miss
at idle all the way up to speed, any help would be greatly appreciated

Thanks


Top
 Profile  
 
 Post subject: Re: compression
PostPosted: Wed Mar 11, 2015 8:54 pm 
Offline
Suzuki Elder
User avatar

Joined: Mon Dec 01, 2003 12:47 pm
Posts: 11675
Location: columbus, ohio
bad head gasket.

_________________
1991 Blue Geo Metro Convertible highly modified 1.0L Turbo3 5 spd. - 1991 Red Geo Metro Convertible customized with a Twincam 5 spd.

My Turbo3 Project
My Cardomain Page -Ol' Blue
My YouTube Channel
My Photo Gallery
SAAB Sonett II


Top
 Profile  
 
 Post subject: Re: compression
PostPosted: Wed Mar 11, 2015 9:35 pm 
Offline
User avatar

Joined: Sun Dec 05, 2010 5:56 pm
Posts: 1035
Location: Wahiawa, HI
Headgasket?

Maybe--I would have guessed a compression loss in one piston instead of a spike for that diagnosis, but maybe I am missing something.

I am envious of your compression numbers. That must be a very low miles motor :mrgreen:

I'm down to 185 dry all across, but last time I noticed something like this was when I diagnosed a clogged fuel injector--maybe carbon in there? I my case I was 190-200, then #3 spiked at 220.

Anyway, I fixed the injector and have run many miles since. I have lost a little across the board, but now I am at 185 even.

_________________
Quote:
No one expects the Spanish Inquisition!

Spanish Inquisition Racing chip burning service--build yourself a custom chip!
http://www.teamswift.net/viewtopic.php?f=17&t=57216


Top
 Profile  
 
 Post subject: Re: compression
PostPosted: Thu Mar 12, 2015 3:33 pm 
Offline
Make love, not moderators
User avatar

Joined: Sun Aug 25, 2002 5:26 pm
Posts: 1936
Location: Etobicoke, Ontario
I'd say you have a bad fuel injector in that high cylinder.

Fuel washes some of the oil away from the rings which lowers your compression. If your not getting any into the cylinder then it would explain the higher number and the miss firing.

_________________
"Don't argue with stupid people. They just bring you down to their level and then beat you with experience."


Top
 Profile  
 
 Post subject: Re: compression
PostPosted: Thu Mar 12, 2015 6:04 pm 
Offline

Joined: Wed Nov 23, 2011 9:03 am
Posts: 4
Location: United States
thanks for all the input came find out it was a injector changed it and all is well thanks guys


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group