Re: O-Ring Sealants - Saab 9-5 Bulletin Board - Saabnet.com


[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]

95 Bulletin Board
1999-2009 [Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only


[Main 95 Bulletin Board | Post Followup | BBFAQ ] [ Prev by Date ] [ Next by Date ] Member Login / Signup [Latest Member Gallery Photos]
Re: O-Ring Sealants
Like This Post:
Posted by Mark in Marine (MN) [Email] (more from Mark in Marine (MN)) on Wed, 20 Jul 2011 17:06:00 Share Post by Email
In Reply to: O-Ring Sealants, Robp, Wed, 20 Jul 2011 16:00:35
Alert me when someone posts in this thread:

Sorry to hear about your leak. I did this job recently, and I agree that it's not very fun!

Addressing your question about sealants: they might work okay, but I would go with something more like the Hylomar HPF. The best seal will be an o-ring the right size, well-lubricated (HPF), with very clean joint (remove all corrosion for sure). You are counting on the elasticity of the o-ring (hopefully Viton) to be compressed, not harden, and keep a pressure seal. Sealants that swell the o-ring are bad, because the o-ring will eventually shrink back and leak. Sealants that don't stick well to the surfaces that they seal have an issue too - and that surface might be the o-ring.

All that said, I get nervous every time I do a job where the o-ring makes a critical seal. Get your joint really clean, lube with the HPF (or perhaps silicone grease), and do be certain you have a proper fit. If there was much corrosion removed, that might mean a very slightly oversize o-ring - in which case make the effort to be sure you have fluoroelastomer o-ring(Viton is a tradename for one), and don't go so large that it buckles.

Good luck - don't give up!

Mark in Marine

posted by 74.46.227...

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.

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: [Member Only Feature] - Sign Up





The content on this site may not be republished without permission. Copyright © 1988-2020 - The Saab Network - saabnet.com.
For usage guidelines, see the Saabnet.com Mission and Purpose Page.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com 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. 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
Your address is: 3.239.33.139 - Using CCBot/2.0 (https://commoncrawl.org/faq/) - 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!