Main Belt Tensioner Replacement - 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 03-16-2009, 09:48 PM   #1
Junior Member
Thread Starter
 
Join Date: Mar 2009
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
tmbrink is on a distinguished road
Default Main Belt Tensioner Replacement

I have a 1997 Bonneville that has a leaking coolant elbow in the belt tensioner assembly. I am looking for a step by step instruction to replace the tensioner assembly. Anyone know of a good instructional website to accomplish this ? Any help would be greatly appreciated.
tmbrink is offline   Reply With Quote
Old 03-17-2009, 06:45 AM   #2
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Unhook the positive battery cable. Untension the belt. Drain off about a gallon of coolant.

Remove the alternator connector and battery cable on back. Unbolt the 10mm bolt to the back of the alternator.

Remove three bolts from the front of the alternator. Shown here at 3, 6 and 9 o'clock


Remove two more bolts from the tensioner as circled here. (Not the actual tensioner you have, accurate for the bolt location)


Wiggling the tensioner remove it. Keep in mind the lower elbow in the 97 model year is metal and part of the tensioner. Prying gently may help. Prying too hard has been known to break the lower part of the tensioner.

That should get it off with the coolant hoses still attached. If you need them removed, please do so.

Using steel wool clean inside the lower intake manifold and tensioner assembly. Replace the o-ring on the lower elbow of the tensioner with the blue o-ring from the large outlet on the coolant elbows in the package. Lightly lubricate all o-rings with vasoline, oil or a little grease before reinstallation on the motor.
BillBoost37 is offline   Reply With Quote
Old 03-17-2009, 08:46 AM   #3
Member
Posts like a V-Tak
 
dave905's Avatar
 
Join Date: Sep 2008
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
dave905 is on a distinguished road
Default

When I did this job, the previous coolant elbows had blue gasket maker on them, so I reapplied some.
Make sure your o-rings are not cracked or squished at all, as it will leak and you'll have to remove it. And i'm speaking for experience with that happening to me!
It sure is nice when the job is a $4.49 part eh?
dave905 is offline   Reply With Quote
Old 03-17-2009, 08:56 AM   #4
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Thanks for reminding me Dave.

O-rings are one of those things that should be replaced because the cost is low. I automatically pick up a new set of coolant elbows anytime the LIM or tensioner comes off. Dorman 47065 and under $5 simply isn't worth a leak. I haaaaaate leaks.
BillBoost37 is offline   Reply With Quote
Old 03-17-2009, 11:24 PM   #5
Junior Member
Thread Starter
 
Join Date: Mar 2009
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
tmbrink is on a distinguished road
Default

Bill, Thanks for your response. The directions were easy to follow and spot on. right down to the blue o-ring. Repair was under $ 4.00 and so far so good ! I will drive it tomorrow to check for leaks. As i was finishing the repair i noticed the front rocker cover gasket is starting to leak. Do you also have the process to fix that ? Thanks again .Tim.
tmbrink is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
02 Regal LS Belt Tensioner Replacement Catmando Buick 14 06-10-2014 11:37 AM
Serp Belt & Tensioner Replacement Soft Ride Buick 16 12-01-2012 10:31 PM
Belt Tensioner Replacement tlsheff 1992-1999 7 04-16-2009 05:55 PM
95 Belt Tensioner Removal & Coolant Elbow Replacement 2000Hoo 1992-1999 3 12-13-2006 07:36 AM
Main bearing replacement in car alyscio 1992-1999 4 11-10-2003 11:33 PM


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 01:43 AM.


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.