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Eric
Chrysler did make plastic
impellers. You could have a cast iron if you see no plastic. Before you start to
disassemble pump, you must check and remove the "C" clip that secures the
bearing in the housing. It is unlikely you will disassemble pump with hand
pullers. The 55 year old parts are frozen onto pump shaft. I use a hydraulic H
frame press to do my pumps.
I have the luxury of a
10,000psi electric pump on my press. Heating the casting and impeller will help
to release when you press apart.
Next, you will be pushing
the bearing/shaft out from the impeller (back) side. You must support the
casting close to the front side of housing. Next, you need a about a 4"
steel rod that is smaller than the shaft. You push on that rod
with the press. The impeller will move down until it bottoms in the
casting. At that point the bearing will have started to move out of the
housing and then the shaft will push out of the impeller as you continue to
push. At that point you will have the shaft/bearing with the pulley flange
attached. Turn it over and support flange as you push shaft out with the same
rod. Measure the amount of the shaft the protrudes out of the flange and
press back onto the new shaft the same measurement.
After cleaning the housing
and machining the seal surface you are ready to assemble.
First you press the new
shaft/bearing into the housing. You need to support the casting on the back
side. A piece of 2" pipe will do. At this point you will need 2
extra hands to steady the casting on the pipe. Do not press on the
shaft to install bearing into housing. You will damage the bearing.
You need a sleeve that fits over the shaft and pushes on the OD of the
bearing. The
bearing will stop flush with the nose of housing.
Now turn over the housing
(bottom face up), and balance on the bearing shaft sticking out the front
of pump (you will need two extra hands again) and install seal and press on
impeller flush with bearing /shaft. Turn over again (front side up), and rest
back end of shaft on a solid support and press pulley flange on the same
distance you measured before pressing off the
old shaft.
Now you learned all my
secrets. I you want to send me a airline ticket, I will be there to rebuild your
pump. You will have to feed me also.
Good
luck,
Thank you,
Gary, the parts doc
Reno, Nevada 89521
USA
The Biggest Little City In The World
Mail:
garythepartsdoc@xxxxxxxxxxxx
775
851-1420
Hi
everyone,
I received the a water pump kit
from Gary Nelson for my 1956 354 Hemi and have a few
questions:
I have removed the back cover and
looked at the impeller. The factory service manual is a bit confusing as
they say "with (water pump) body and shaft suitably supported, use a cold
chisel to break the plastic portion of impeller away from metal insert. (Start
near metal insert). Remove parts of seal assembly by sliding them over the
shaft and insert. Attach puller, Tool C-3476 and remove metal
insert".
Looking at the impeller, I don't
see anything plastic and it seems that a small puller like a steering wheel
puller with 5 arms/hooks that go into the holes would be required to pull the
impeller off of the shaft.
I have had a really difficult time
finding any shop in Brisbane that would even consider rebuilding
a water pump but have found one that said they could do it. I have
dropped off the pump with them but they seemed a bit confused as to how to
remove the impeller. Do you have a picture of the tool you have used to
remove the impellers? What is the best process for removing the
impeller?
Thanks for your time/effort!
Kind
Regards,
Eric
1956 Chrysler New
Yorker
Brisbane,
Australia
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