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<  Swap Mechanical  ~  Water Pump Pulley
PostPosted: Tue May 09, 2017 9:56 pm  Reply with quote
Too Much Time on His Hands

Joined: 22 Feb 2006
Posts: 619
Location: Las Vegas, NV

My car is finally up and running out terrorizing the streets. However, I took a peek today and noticed that my water pump pulley seems to be wobbling. The stock pulley sits on top of the power steering pump pulley to space it out and line up with the crank and alternator pulleys. I basically made a shim out of the power steering pulley, but must have done it wrong. I could have a wobble in the water pump pulley itself, but think I made the error.

What is everyone else using to space the pulley out? Do I even need to shim it? It's only about 1/16", but it might be enough to throw a belt at 7k rpm.

Do it in a Datsun!
1972 Datsun 510
7-bolt 4G63T, EVO 9 pistons and rods, Garrett GT3076R, "flipped" stock intake, Toyota R154, Z31 R200 w/ CVs
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PostPosted: Mon Oct 21, 2019 10:27 am  Reply with quote
Knowlege Seeker

Joined: 05 Dec 2012
Posts: 20

Are you using a DSM water pump or a mighty max water pump? Why not just keep the whole PS pulley ?

I used a max pump and need to find a pulley with a different offset. Anyone have success with that?
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PostPosted: Wed Oct 23, 2019 7:44 am  Reply with quote
Sir Post A Lot

Joined: 07 Apr 2004
Posts: 1777
Location: Hereford Zone, MD

On one I used a press to change the offset a little on one. On another, I was able to press off the hub from the shaft and flip it which let me change the offset.


Getting the engine bolted in is about 10% of the way there.
The next 80% can go quickly with help and skill.
That last 10% takes about as long as the 90% that came before it.
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