I'd say head gaskets & cooling system - Saab 9000 Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News -
5/28: SAAB Evolutions/TSN T-Shirts $14 |
5/23: SOC Day Pass Winners Announceed
[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 9000 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
I'd say head gaskets & cooling system
Posted by George (more from George) on Fri, 9 Apr 2004 13:37:29
In Reply to: What is the main weakness of 9ks in general?, JustinHiFi 
[Profile/Gallery]
, Fri, 9 Apr 2004 12:59:06
Members do not see ads below this line. - Help Keep This Site Online - Signup
First of all the B234 is an aluminum head on cast iron block.
I have a theory that all gaskets between aluminum and steel fail eventually because aluminum and cast iron expand and contract at different rates. Given enough thermal cycles the fretting causes gasket failure.
Cooling system failures are most often due to a failed tensioner, tensioner pulley or failed idler pulley. I had a tensioner fail at just over 60k miles. Since then I replace all that stuff at about 50k intervals and have had no problems. I also had a thermostat stick closed recently, so thermostats are now on the pre-emptive replacement list.
Most cooling system failures with B234s result in a warped head. With both the tensioner failure and the thermostat I shut mine off instantly and had the car towed home. So far both motors are hanging together pretty well.
Recognize that some of this is statisical. Somewhere I'm sure there is a car with a gazzillion miles on the original head gasket, or a car that's boiled over and the head gasket survived, but for the most part these are the things that qualify as weaknesses.
posted by 209.10.230...
Posts in this Thread:
- What is the main weakness of 9ks in general?, JustinHiFi , Fri, 9 Apr 2004 12:59:06
- Re: What is the main weakness of 9ks in general?, Aerogenous
, Sat, 10 Apr 2004 09:15:47 - 4 in my yard now...every one had or has some sort of, RayV, Fri, 9 Apr 2004 17:32:35
- 9000 Transmission are junk, Matt, Fri, 9 Apr 2004 14:54:16
- I'd say head gaskets & cooling system, George, Fri, 9 Apr 2004 13:37:29 <-- Viewing This Message
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!
, Fri, 9 Apr 2004 22:01:37