Click Banner for Details on this Saabnet.com Classified
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 NG900 & OG93 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
White smoke, dark coolant, head bolt torque: finished?
Posted by vovo222 [Email] (more from vovo222) on Mon, 4 Dec 2006 18:02:59
Members do not see ads below this line. - Help Keep This Site Online - Signup
I recently got my Saab inspected (passing emissions test) and then started noticing that, on occasions, excessive white smoke at tailpipe would appear, then disappear a bit later -- I looked closer and noticed the coolant bottle fluid is getting dark. Uh-oh, this seems to bring my head gasket into question! Archive posts I read all recommended a head bolt retorque was the first-aid measure. I found vac hoses were pinched and brittle and decided to replace them, too.
On a cold engine, using a torque wrench and E-16 socket (Lisle), I removed and inspected each bolt: #10 was decidedly looser than others and threads were gooped in oily muck. I then followed the 3-stage TSB tightening procedure (30/44 +90 deg. stage 3) using existing bolts. The Lisle socket failed and cracked open on final tightening of #7 (all fragments retrieved with magnet), so I got a new one (K-D/Napa) ...after stage 3, finished up by checking that each bolt did not move when 85 ft/lbs of tightening torque was applied. By hand, it felt like some bolts were solidly tight, but others felt a little like they could have been stretched if they were torqued further. I'll be flushing coolant and oil next, waiting a couple weeks, and check coolant and oil for results.
Can white smoke be attributable to vacuum line deterioration alone, or was it definitely coolant going out the tailpipe? Did I get the re-torque part right?...correct torques?...anything missed?
Many posts indicated that my 1994 engine preceded the loose head bolt issues of later years, BUT my loose #10 says otherwise -- perhaps ALL NGs were affected.... If I caught this in time and my symptoms are remedied, should I just be happy with the results, OR is there reason to think about replacing the old head bolts with new ones since they will be subjected to more heating/cooling cycles as the engine ages?
Vovo222
1994 900S 3dr 2.3L NA auto (112k mi.)
posted by 172.148.214...
Posts in this Thread:
- White smoke, dark coolant, head bolt torque: finished?, vovo222, Mon, 4 Dec 2006 18:02:59 <-- Viewing This Message
- ALL YEARS of NG900 may have low head bolt torques!!, vovo222, Tue, 5 Dec 2006 00:40:16
- A photo of head gasket at #10, vovo222, Mon, 4 Dec 2006 23:40:28
- Re: White smoke, dark coolant, head bolt torque: finish, Dean, Mon, 4 Dec 2006 21:02:14
- interesting- my 96 900 set recently began spewing wh, trragtops, Mon, 4 Dec 2006 19:33:44
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
![](/tsn/xyz/stateofninebutton.gif) |
SaabClub.com
![](/tsn/xyz/scnabutton.gif) |
Jak Stoll Performance
![](/tsn/xyz/jakstollbutton.gif) |
M Car Covers
![](/tsn/xyz/mcarcoversbutton.gif) |
Ad Available
![](/tsn/xyz/buttonavailable.gif) |
![](/tsn/images/tsnmap.gif)
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!