A while back I bought a "high performance" water pump from Cambridge Motorsport
in England. I was there, it was there, so I bought it, along with the narrow
belt conversion.
This was 2 years ago. I handed the stuff to the shop that was doing the engine
rebuild, and they installed the parts with the rebuild.
I bought the parts 2 years ago, almost, and FINALLY the engine was completed
and running a couple of months ago.
Long story short: the pump seized and had to be replaced with a new standard
one. The engine is fine and cools properly.
Since I do not even have the redeipt for the part, and since it was 2 years
ago, and since I ma here in the US and they are way across the Puddle, I think
the likelihood of a replacement is unlikely. Even more so now that I have it
apart. Way apart.
The pump shaft was buggered by the engine guy trying to get the pulley off,
that is why I figured no refund from Cambridge.
Anyway, I dismantled the pump and found that it had seized because the impuller
was pushed up into the pump body until it bottomed out. Ther is a small
circlip on the shaft what is supposed to prevent this movement, I think. It
was mangled severely before I mangled it further in the removal process.
Anyway, everything else looks OK. I think that if I get a new shaft, it will
be a good pump. BUT.... maybe the sealing parts were not installed correctly
causing the problem. The seal and assorted sealing parts are not standard 50
years old parts. they are modern replacements.
So, in what order do these seals get installed. There is what looks like a
modern oil seal in the pump body, then there is a conical spring. and a very
thin washer, and a plastic ring that can fit in either wat but it is not clear
which direction it goes. One side is fairly flat, and the other is cupped with
nasty looking teeth.
The cupped side looks like it could fit against the back of the impeller, or
maybe it could fit against the spring.
Anybody know what order this is supposed to be assembled?
-Tony
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