Leak at new elbow - Page 2 - 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.

Thread Tools Search this Thread
Old 11-01-2010, 09:33 AM   #11

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

I've noticed some leakage problems in a few cases. The cause of the leakage was typically not something I could find. Meaning the LIM manifold didn't have a crack, the tensioner housing didn't have any cracks. The only things I was able to determine was the elbow had an odd angle. If when you install, there is any pressure on it (because it only seems to be the top one that will ever leak) they will change shape slightly with heat cycles and that can allow them to leak. I found one or two that became almost 45 degree angles.

A fix that has worked well for me.
Lube both o-rings with oil or vasoline etc.
Install the elbow into the tensioner and wiggle it to ensure some movement.
Bring tensioner into place, engage elbow into LIM and start the bolts on the tensioner to head.
Before the tensioner is tightened, wiggle the elbow to ensure it is square and not bound by pressure of being assembled.

Since having a few problems, I've found that to work each time. Napa selling a lot of them is probably more due to the change in weather and them breaking or leaking vs a defect.
BillBoost37 is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Elbow Leak Luke 1992-1999 8 03-22-2007 10:54 AM
coolant elbow helikon 1992-1999 13 02-05-2005 10:01 PM
Plastic coolant elbow - BROKE! faisalmali 1992-1999 2 11-13-2004 10:46 PM
Plastic elbow part number? ron350 1992-1999 5 11-08-2004 07:28 AM
Coolant elbow blues .....proper replacement procedure? hunter548 1992-1999 2 04-13-2004 01:29 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 10:06 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.