Head gasket problem & compression test results - Saab 900 Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News -
7/1: Members: Log In to See Fewer Ads! |
5/28: SAAB Evolutions/TSN T-Shirts $14
[General |
Members |
C900 |
9000 |
NG900 & OG93 |
93 |
95 |
NG95 |
99 |
Sonett |
Vintage Models |
Clubs |
Other Cars |
FAQs |
Gifts |
Member Photo Galleries |
Member Directory |
Classifieds |
Manuals |
*Buddy Registry |
*Mileage Registry |
Polls |
What's New |
Raffle |
Photo of the Month |
Sponsors]
[Main C900 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Head gasket problem & compression test results
Posted by Todd inMA [Email] (more from Todd inMA) on Sat, 21 Aug 2004 11:52:45
Members do not see ads below this line. - Help Keep This Site Online - Signup
My 1990 900 (246k miles with original head) has all the symptoms of a head gasket leak:
* bubbles in the coolant
* coolant loss in the expansion bottle (~1/2 the bottle contents lost every other day).
* white smoke on warmup from the exhaust
* oil looks like coffee with cream
So before I decide whether to tear into the head, I decided to confirm the problem via a compression test. Oddly enough, the compression test looks good:
Engine warm After 10 minutes
Cylinder 1 176 psi 172 to 173 psi
Cylinder 2 183 psi 186 psi
Cylinder 3 190 psi 190 psi
Cylinder 4 186 psi 198 psi
The worst case difference between 198 and 172 psi is 13%..
So what could be the problem? The compression test doesn't seem to confirm a head gasket leak, does it?
Thanks for help on this...
Todd inMA
posted by 66.189.4...
Posts in this Thread:
- Head gasket problem & compression test results, Todd inMA, Sat, 21 Aug 2004 11:52:45 <-- Viewing This Message
- Re: Confirmation test, Sjer, Sun, 22 Aug 2004 06:25:19
- Re: Head gasket problem & compression test results, Tim (in Oz), Sat, 21 Aug 2004 15:57:39
- i can't imagine it not being a headgasket..., eric 85 900t, Sat, 21 Aug 2004 14:13:32
- Re: Head gasket problem & compression test results, thor2004, Sat, 21 Aug 2004 12:12:48
Members do not see ads below this line. - Help Keep This Site Online - Signup
Post a Followup
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
StateOfNine.com
|
SaabClub.com
|
Jak Stoll Performance
|
M Car Covers
|
Ad Available
|
Random Saabnet.com Member Gallery Photos (Click Image)
This is a moderated bulletin board - Posting is a privilege, not a right.
Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY.
Classifieds are to be listed in The Saab Network Classifieds pages.
This is a problem solving forum for over 250,000 Saab owners, so expect to see
problems discussed here even though our cars are generally very reliable. This is not an anything goes
type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the
Saabnet.com Mission and Purpose Page. Please remember that you are
not anonymous. Site Contact | Site Donations | Other Sites by SP -
Poverty2Prosperity.org | Run Club Menlo Park | ScreenBot
Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all
the Site Membership Benefits!