Mordis

Hey everyone,

Ive been looking around the forums for the past few days trying to figure out my water pump situation and cant find exactly what I'm looking for.

let me start with what I got, I have a 2011 Colorado with a LH9 Engine (VVT no AFM) I am going to be doing some work to the engine and retaining VVT, now with that said this is the Stock water pump that is on the Engine:

https://http2.mlstatic.com/bomba-agu...9_042016-F.jpg
https://http2.mlstatic.com/bomba-agu...4_042016-F.jpg

So I am going to be running a ATI 8 Rib accessory drive which means I have to pull the stock pulley off the pump (not the problem) and press on a hub to bolt the 8 Rib pulley to (kind of the problem)

So as you can see in the stock pump it has a press in back plate that I cant seem to find anywhere so If I try and press the pulley hub on the shaft it will probably press the impeller shaft out the back of the pump.

I was considering buying this pump:
http://www.flowkoolerwaterpumps.com/...duct_info.html
Better Pics: http://gmtnation.com/forums/threads/...er-pump.13598/

Since that FlowKooler pump has the removable back plate I would be able to support the impeller shaft while I press on the new hub the problem with this pump is 1. It does not have clearance for VVT & 2. The outlet Neck position.

So finally my questions:
1. I know there are water pump spacers out there for the LS engines and my question is If I use the FlowKooler Pump would I need the .75" or 1.5" Spacers to clear the VVT timing cover? (Links below)

.75" = https://www.lsxinnovations.com/produ...-pump-spacers/
1.5" = https://www.lsxinnovations.com/produ...ers-1-5-thick/

2. Do you guys think doing something like the pic below would give me roughly the same outlet position as the stock pump?
https://cimg7.ibsrv.net/gimg/ls1tech...35357059c0.jpg

Thanks for your time, sorry about the long winded post.

Mordis

Has anyone attempted something like this? or at least seen it done by someone?

Krom

not an answer to your question

But you can put your pump in the freezer, and pulley in the oven, and it will slide right on. I'd go to far on with it, then you can always move it with a puller, to get the alignment perfect

Mordis

I'm thinking this is probably my only option, after researching it further I can use the spacers to get the pump pulley in line with the belt but that moves the tensioner forward as well and out of line with the belt.

So at this point it's looking like the heat and drop it on method.