LIM Manifold Gasket @ 48,500 miles - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-11-2006, 10:18 PM   #1
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default LIM Manifold Gasket @ 48,500 miles

I just replaced the lower intake manifold gaskets on a '99 Olds 88 after noticing what appeared to be a coolant leak. The upper was done at a service shop about a year and a half ago, but they did not do the lower. The car only has 48,500 miles on it, and is not driven hard, as it is owned by a 90 year old woman. She doesn't drive like your typical "old lady", however. (Not exactly the "Little Old Lady from Pasedena" as mentioned in Jan and Deans song, but she holds her own with traffic.) She has regular maintenance performed, and had the DexCool flushed out after 3 years. I was surpised at how bad the gaskets looked.

http://pg.photos.yahoo.com/ph/archon...36.jpg&.src=ph

http://pg.photos.yahoo.com/ph/archon...24.jpg&.src=ph

The heads and LIM showed some signs of pitting, also. (Sorry, no pics of that as I didn't have my camera with me.) There has been some discussion on when to expect the lowers to go, so I thought some may be interested in seeing these at this "low" of mileage.

The one thing regarding her driving that is likely a factor is that a lot of short trips are made with the car. She lives in Detroit, and often just drives to a nearby coffee shop, to church, and to the store. Her last car (I think it was a 96 eighty-eight) spun a bearing after the gaskets were replaced. This could have been a dealer service problem, as GM ended paying all but $50 to have a short block put in.

It would seem that how the car is driven during the miles that are put on is at least as important as to how many miles are on the odometer.
Archon is offline   Reply With Quote
Old 04-11-2006, 10:34 PM   #2
Junior Member
 
Join Date: Mar 2003
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
vital49 is on a distinguished road
Default

Those pictures don't surprise me one bit. The lower intake gaskets on my 99 looked the exact same way after only 77,000 miles. The good news is, at that time I replaced those gaskets with Felpros. At 115,000 miles I pulled the lower again and the Felpros still looked like brand new. Of course, I changed them anyway.

Did you happen to change the coolant by-pass elbow? And, what brand of gasket did you go with?
vital49 is offline   Reply With Quote
Old 04-12-2006, 12:08 AM   #3
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

Yes, I did replace the coolant elbow also. I used Felpros for the upper, and the new GM gasket for the lower. The place where I get my parts even called his Felpro distributor to see if perhaps they had one-upped GM on the lowers. They had not....at least yet.

As a side note, I was not impressed with the way the upper had been done previously. I know they're only 89 in lbs for torque, but I could easily get them out with a nut driver, and no indication of any thread lock being used.
Archon is offline   Reply With Quote
Old 04-12-2006, 12:24 AM   #4
Senior Member
True Car Nut
 
Join Date: Mar 2005
Posts: 2,688
Thanks: 0
Thanked 0 Times in 0 Posts
dillcc is on a distinguished road
Default

When Bill Buttermore and I did my replacement job in March the UIM bolts broke loose way too easily - was a bit disconcerning - but I wasn't losing any coolant at the time. Not sure whats up with that though.
dillcc is offline   Reply With Quote
Old 04-12-2006, 01:41 AM   #5
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

I would have felt a bit more comfortable if they had "broke loose". Unfortunately, they just spun out. Luckily, it hadn't appeared to have caused much of a problem.
Archon is offline   Reply With Quote
Old 04-12-2006, 01:02 PM   #6
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

The gasket troubles do not supprise me..

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 04-12-2006, 01:19 PM   #7
Senior Member
True Car Nut
 
Join Date: Jun 2004
Location: Rochester, NY (college)
Posts: 6,182
Thanks: 0
Thanked 0 Times in 0 Posts
corvettecrazy is on a distinguished road
Default

89 inch pounds really isn't a lot of torque. You can probably apply more torque than that with a screwdriver. So i'm not supprised they felt loose.
corvettecrazy is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
How can I diagnose a blown head gasket? Maybe LIM gasket? rstrunk 1992-1999 6 03-15-2009 10:24 PM
New 05 Bonnie, 500 Miles RDBGXP Your Ride: GM Pictures & Videos 12 10-28-2007 09:01 PM
Pictures of New 05 Bonnie with less than 500 Miles RDBGXP Your Ride: GM Pictures & Videos 3 10-27-2007 10:28 PM
$31,500 for 05 GXP W/ 4,000 miles?!? MikeD General GM Chat 1 05-25-2005 10:33 PM
500 miles after 1st Brake Job - Impressions swartlkk 2000-2005 1 12-18-2004 01:39 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:24 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.