UIM/LIM Update
05-27-2007, 09:21 PM
#1
Junior Member
Posts like a V-Tak
Thread Starter
Join Date: Apr 2007
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
UIM/LIM Update
Upper and lower removed. Oil slude in upper plenum. Stovepipe sheared and plugged with hard oil slude. Upper part of LIM pooled oil in corners left rear/right front-lowest part of lim.No evidence of coolant in lifter valley. 
Please post a pic of lim stovepipe bore, so I can compare it to my bore.
Please post a pic of lim stovepipe bore, so I can compare it to my bore.
05-28-2007, 08:26 AM
#3
Senior Member
True Car Nut
I doubt your stovepipe sheared. For a stock '95, the OD of the stainless steel stovepipe is .749-.750" The walls are about .035" Can you measure the bore in the LIM? If it is .750", your stovepipe did not shear. From your pix, it appears that your stovepipe was loose, lifted up from engine vacuum and stuck in the UIM bore.
You need a new reduced diameter stovepipe. Buy an APN kit and you will be good to go. When you install the pipe, make sure it is tight in the bore. Looking for some pix for you..... Here is a .750" bore from a '95.
Have you read Techinfo Article 38? [
You need a new reduced diameter stovepipe. Buy an APN kit and you will be good to go. When you install the pipe, make sure it is tight in the bore. Looking for some pix for you..... Here is a .750" bore from a '95.
Have you read Techinfo Article 38? [
Last edited by Toddster; 06-19-2009 at 12:33 AM. Reason: removed old link
05-28-2007, 06:45 PM
#4
Junior Member
Posts like a V-Tak
Thread Starter
Join Date: Apr 2007
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Bill you are indeed correct 
Measured inner bore after good cleaning
and it is .745 . Looked at new stovepipe from APN upper kit and did dryfit.
Fits perfect. Forgot stock GM stovepipes are one complete OD.
Thanks for your invaluable input and pic. .
Measured inner bore after good cleaningand it is .745 . Looked at new stovepipe from APN upper kit and did dryfit.
Fits perfect. Forgot stock GM stovepipes are one complete OD.
Thanks for your invaluable input and pic.
.
Thread
Thread Starter
Forum
Replies
Last Post
Paul1981
2000-2005
10
12-21-2007 10:05 PM