Re: stalls out when i start to un-choke it - Saab Sonett Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News - 4/9 Saab Owners' Convention Day Pass Raffle | 3/26 M Car Covers (by State of Nine)
[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]

Sonett Bulletin Board
1964-1974 [Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only

[Main Sonett Bulletin Board | BBFAQ | Prev by Date | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: stalls out when i start to un-choke it
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by spiv (more from spiv) on Tue, 17 Sep 2002 00:25:08 Share Post by Email
In Reply to: stalls out when i start to un-choke it, Mick Daigle, Mon, 16 Sep 2002 10:39:27
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup

Sounds like a vacuum leak to me, too. What this does is make your carb mixture 'way too lean, because air is getting into the engine without having any gas mixed into it at all. Running with the choke full on makes the carb run super-rich, which can compensate just enough to get it to run, sorta. But ya really want to fix it instead!

Chris's carb-spray test will help you spot the air leak if it's around the base of the carb... but don't forget that there are a lot of other places it can be leaking too, including the hose(s) to the distributor vacuum chamber and possibly the chamber itself (torn diaphragm.) Another possibility comes up if someone, sometime did some swapping with an engine out of a Saab 96. The 96 (at least the later ones) has power assist on the front disc brakes, and the vacuum source for the brake booster is a big honking vacuum hose fitting on the 'intermediate plate' that goes between the carb and the manifold (the PCV valve also screws into this plate.) If that power brake booster fitting isn't plugged, you've got a HUGE vacuum leak!

It's faintly possible that this kind of problem can be caused by clogged jets in the carb (yeah, I know you rebuilt it, but you'd be surprised how easy it is for some gunk to get in there when you put it back together) but I'd still bet on the vacuum leak, and besides it's easier to start checking that because you can do it without taking the @#$^ carb apart again...!

posted by 68.13.138...

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

Name: Member Login / Signup - Members see fewer ads. - 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.

Subject:

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 Saabnet.com 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]http://www.domain.com/img.jpg[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]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).
Optional Link: (e.g. http://www.saabnet.com/)
Link Title: (Optional)
Optional Photo/Image Link: (e.g. http://www.saabnet.com/img.jpg)
Photo/Image to Upload: (Please be patient while file uploads)



StateOfNine.com
SaabClub.com
Jak Stoll Performance
M Car Covers
Ad Available

The content on this site may not be republished without permission. Copyright © 1988-2024 - The Saab Network - saabnet.com.
For usage guidelines, see the Mission & Privacy Notice.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]

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!