Re: Rats! My *&*!@ Saab 96 still overheats - Saab Vintage Models Bulletin Board -

[General | Members | C900 | 9000 | NG900 & OG93 | 93 | 95 | NG95 | 99 | Sonett | Vintage Models | Performance | Detail | Clubs & SOC | Other Cars | FAQs | Gifts | Member Photo Galleries | Member Directory | Classifieds | Service/Mechs | Manuals | *Buddy Registry | *Mileage Registry | Polls | What's New | Raffle | Photo of the Month | Sponsors]

Vintage Models Bulletin Board
1950-1966 [Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only

[Main Vintage Models Bulletin Board | Post Followup | BBFAQ ] [ Prev by Date ] [ Next by Date ] Member Login / Signup [Latest Member Gallery Photos]
Re: Rats! My *&*!@ Saab 96 still overheats
Like This Post:
Posted by kansas [Email] (more from kansas) on Tue, 05 Sep 2000 22:29:47 Share Post by Email
In Reply to: Rats! My *&*!@ Saab 96 still overheats, Gary Piland, Mon, 04 Sep 2000 02:12:21
Alert me when someone posts in this thread:

Gary, I think the why of overheating is that the car was designed in Sweden and simply runs out of cooling capacity at 110f. The solution is
to add more. BTW how do you define "overheats"? Mine, with 50-50 coolant mix (don't run pure water!) runs up to about 210-220 water temp which puts it near or into the red on the gauge. This is hotter than designed and hotter than I like, but it is not boiling over or obliging me to stop. Water boils at 212; 50-50 coolant boils at 256. Comment on your efforts: I'm pretty sure my stock radiator is a 3-row, yours may not exceed stock
in heat transfer capacity. I too have an electric fan, which cools well
at idle or low (around-town) road speeds, but neither it nor any mechanical
fan has much function at highway speeds, where I encounter the temps I don't like. At 60 mph you have a 60 mph wind through the radiator, that's
faster than the fan blows. Water pump: The back cover of the pump is part of the engine front cover and gets reused. It is subject to erosion, yours may be badly pitted and this may affect pump capacity. Repairable with metal-filled epoxy & careful working back to the original shape. I run the stock expansion tank and have no problem, but the caps don't seal well on the plastic after a while and then you can lose coolant which causes overheating. The Volvo tanks have a better (screw-on) cap design.
If you have air in the system it will show up with a pressure tester in
requiring prolonged pumping to get to 15psi. If the system is full it will
pump up in a few strokes. Any shop has this device if you don't. My car
too drops temp markedly if the heater is turned on.

So the solution is more cooling, ie remove more heat. My radiator guy could provide a 4-row louvered-fin core on the stock tanks for multiple
hundreds of $$$$. Or I could go through all kinds of contortions to mount
a pre-77 99 core to the stock tanks, this is the traditional solution. Or
I could add an oil cooler for much less money and see how it works. My
performance shop has one that I think will fit between radiator and headlight without too much trouble, #41308 from Earl's Performance Products, Long Beach CA, will require some bracketry, re-placement of the horn (& overflow bottle if mounted on the left, where clearance from the
alternator is easier), & an oil filter adapter. Way cheaper than the
fancy radiator core. These units look very good and come in many many sizes.

Other ideas, not yet tried by me: a "balanced" thermostat, said to provide
more flow, and a wetting solution to enhance heat transfer from engine to
coolant. Neither is bad but I would expect only marginal results from
either as they do not address the real problem of not enuf capacity to take
away heat. Either available from your performance shop. I do not recommend Carlin's solution of a thermostatectomy--it is there for good reasons. Carlin, does it get to 110 where you live?

On the CV problem, a hose clamp is fine if it is not too wide for the
channel in the boot, don't overtighten. I prefer a zip-tie, you may have
to search some for the heavy ones about 5/16" wide, & may need two for
length. Let us know how you make out. K

Posts in this Thread:
Alert me when someone posts in this thread:

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.

Name: Member Login / Signup [Latest Member Gallery Photos]
E-Mail: (Optional)
Re-Enter E-Mail: (Confidential & Secure - Not revealed to other users!)
Note: Please check your spam folder for BB responses.


Posting rules are simple - No for sale/wanted ads may be posted here - use the site classifieds.
You may not cross-post your message to multiple BBs.
Not permitted: political/religious topics and being disrespectful (personal attacks, insults, etc...).
Site Members do not see any red text, inline ad links, bottom of page anchor ads, box ads, or anti-spam check.

Message: (please no for sale/wanted classifieds - post those in the Classifieds)
Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post, use [img][endimg] (or use the Optional Image Link field below).

Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post above, use [img][endimg] (or use the Optional Image Link field below).

Optional Link: (e.g.
Link Title: (Optional)
Optional Photo/Image Link: (e.g.
Photo/Image to Upload: [Member Only Feature] - Sign Up

The content on this site may not be republished without permission. Copyright © 1988-2020 - The Saab Network -
For usage guidelines, see the Mission and Purpose Page.
[Contact | Site Map | on Facebook | on Twitter | Shop Amazon via TSN | Site Donations]

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. has been a moderated forum since 1988. For usage guidelines, see the Mission and Purpose Page. Please remember that you are not anonymous. Site Contact | Site Donations | Other Sites by SP -
Your address is: - Using CCBot/2.0 ( - Logged.

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!