LMM water pump replace?

Mogman

Member
May 3, 2020
311
14
18
Papalote, TX
The factory Delco pump did not come with the o ring for the end of the oil cooler pipe, do I ignore it and move on or do I trip up to the GM dealer and try to order one?
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
18,201
438
83
Phoenix Az
If you think you can get the old one back in without cutting it, go for it. Most times they are swollen and either don’t go in or cut themselves as they go in.
 

Mogman

Member
May 3, 2020
311
14
18
Papalote, TX
I have not pulled the tube yet, the one on the top of the bypass tube was so swollen it literally just fell off of the pipe, I am going to town to see if the local chevy dealer has one before I pull it.
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
13,942
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Mid Michigan
The top one is the one I was talking about. If the LMM pipe setup is the same as the LB7, you can use an LB7 injector cup O-ring if need be.
 

Mogman

Member
May 3, 2020
311
14
18
Papalote, TX
NO WONDER that o ring is not in the kit $32, those folks at GM are GD thieves!! I guess what I would expect from an auto company owned by BHO
 

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