Water pump housing milling
#240382
03/01/09 09:31 PM
03/01/09 09:31 PM
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Joined: Sep 2006
Posts: 3,009
Sac, CA
mopowers
OP
master
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OP
master
Joined: Sep 2006
Posts: 3,009
Sac, CA
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What is the most I can mill a BB water pump housing? My elephant ears are 3/8" and I don't want to use a 3/8" crank pulley spacer because I don't have a lot of room to play with. Can I take the whole 3/8" off the housing, or would I be safer taking 1/4" and using a 1/8" spacer on the crank? Thanks guys! Here's a picture of what I'm working with: 
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Re: Water pump housing milling
[Re: mopowers]
#240386
03/01/09 09:49 PM
03/01/09 09:49 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Thats another possibility Mike. The car will see a lot of street time though, so I'm not too sure I want to put all my trust into an electric pump. I was just curious what the max was for milling a pump housing.
There is tons of hot rods running electric water pumps
on the street, the CSR or Meziere style pumps with
electric fans on the rad
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Re: Water pump housing milling
[Re: mopowers]
#240388
03/01/09 09:56 PM
03/01/09 09:56 PM
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Joined: Jan 2003
Posts: 1,633
Jacksonville, NC
RonP
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,633
Jacksonville, NC
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Quote:
Thats another possibility Mike. The car will see a lot of street time though, so I'm not too sure I want to put all my trust into an electric pump. I was just curious what the max was for milling a pump housing.
I am not sure what the max is but years ago we milled one down so everything would line up and I had continuous leaking problems. Found out that as it was milled down, the water pump holes became larger and didn't line up with the gaskets I was using on the waterpump to motor plate. Just something to keep in mind.
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Re: Water pump housing milling
[Re: RonP]
#240390
03/01/09 10:17 PM
03/01/09 10:17 PM
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Joined: Jan 2003
Posts: 2,567
Appalachia
RedRam
master
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master
Joined: Jan 2003
Posts: 2,567
Appalachia
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My plate is 3/8", milled the alum mopar housing the same amount. That made the gasket surface a little thin in a couple of spots. Used a spool gun to add a little metal and re-milled the high spots. All is good.  I also had to clearance the rear of the thermostat area of the housing and the plate a little.
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