Cool/Heat: R-series water pumps

[Lou Van Anne]

Why won't a 63-64 Avanti R-series water pump (Studebaker International part number 1560395) work on other R-series cars? Just put one on my R2 GT Hawk.........am I going to have problems?

[StudeRich]

It is only the longer center hub that centers the Fan or Viscous drive unit that differs between the two.

If the long hub center protrusion does not interfere with whatever Viscous drive unit you have, AND it seats all the way into the deep hole centering the Viscous and the Fan, it should work.

[Lou Van Anne]

Okay, the hub was to long....fan would not mount....so I added a wash to each bolt hole and remounted the fan.....it worked!How safe is my modification?....have I missed anything?

It is only the longer center hub that centers the Fan or Viscous drive unit that differs between the two.

If the long hub center protrusion does not interfere with whatever Viscous drive unit you have, AND it seats all the way into the deep hole centering the Viscous and the Fan, it should work.

[StudeRich]

You MIGHT get away with it, if it does not wobble. I honestly do not know, I have never tried it.

The CENTER of the Hub is what centers it, the bolts are usually a sloppy fit, as they are not needed to center it.

Also, I don't think you mentioned if you are using the correct Viscous Drive Unit and Fan Blades or not.

[Lou Van Anne]

I've been able to drive her about 15 miles since.....so far, so good....hoping to make 50+ without something else going wrong....
(Love is blind).

[64V-K7]

Years ago, I bought a 6 blade fan, viscous drive setup from Dave Thibeault and adapted it to an Avanti Water pump on my 64 Hawk. Also had to use washers to elongate/adjust something. It works fine.
Found that if you use stainless steel washers, they more uniform in thickness than the plain steel stuff. Use red Lok-Tite on the bolt threads also

[Hawklover]

Speaking of water pumps on Avantis.........that is one of the nastiest jobs.........one really needs to have four hands....only one time did I replace the pump (by myself) on my Avanti........not a pleasant memory..............after that had an assistant hold up the fan while I attached the fasteners.

[tsenecal]

Hey Lou. I didn't miss the "Love is blind" comment. Hang in there, and stay in love. She'll come around.

[Lou Van Anne]

Before the money runs out.....I hope!

Hey Lou. I didn't miss the "Love is blind" comment. Hang in there, and stay in love. She'll come around.