Catastrophic Water Pump Failure
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,062
From: altered state
St. Jude Donor '05
300 for a mech fan that is just stupid, wow..Can aftermarket fans be setup to use with a clutch?
I used to use a flexalite nylon fan (weighs a few oz) moves tons of air and isnt noisy..will never break.
Cant help but wonder how that would play with a clutch. You could run rpm and never worry about all that weight spinning on the water pump.
I used to use a flexalite nylon fan (weighs a few oz) moves tons of air and isnt noisy..will never break.
Cant help but wonder how that would play with a clutch. You could run rpm and never worry about all that weight spinning on the water pump.
Thread Starter
Racer
Joined: Jul 2015
Posts: 396
Likes: 101
From: Lehigh Valley Pennsylvania
I want to close out this post with a final update.
This may be wrong. It looks like the 5/8" pilot is a 3/4" shaft that was cut down to 5/8" at the nose.
I took the back off the Stewart stage 1 pump and it had a stamped SS impeller.
The wiring resistance is so small that a conventional Ohm meter will not measure it. I added a new #6 ground and put external tooth washers between the bolts, alternator, brackets, and the block.
One item, the Dewitt radiator is smaller in width than the stock radiator and you need different rubber mounts when switching. They are not included.
Overall, it was an easy install and I am pleased with the results. The car appears to run at the 170F thermostat setting when it is moving, which is about 10F cooler than the stock radiator. And it will cycle the fans when idling. I won't know for sure until next summer whether the car has a cooling issue when it is hot and the AC is on.
One item, the Dewitt radiator is smaller in width than the stock radiator and you need different rubber mounts when switching. They are not included.
Overall, it was an easy install and I am pleased with the results. The car appears to run at the 170F thermostat setting when it is moving, which is about 10F cooler than the stock radiator. And it will cycle the fans when idling. I won't know for sure until next summer whether the car has a cooling issue when it is hot and the AC is on.
