Water pump turbine question
#1
Junior Member
Squid
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Join Date: Nov 2018
Posts: 19

Water pump turbine question
Hi !
happy New year everybody !
while repairing my clutch cover (it was drilled after i fell down), i noticed that the water pump sprocket doesn't spin freely when i make it turn with two fingers.
is it normal ?
Is it because of the seal that "rubs" ?
happy New year everybody !
while repairing my clutch cover (it was drilled after i fell down), i noticed that the water pump sprocket doesn't spin freely when i make it turn with two fingers.
is it normal ?
Is it because of the seal that "rubs" ?
Last edited by melouse; 01-01-2019 at 05:14 AM.
#2
Really hard to confirm or deny yours is as it should be over the Internet.
Only three reasons I can think of that would be at issue.
- Damaged bearing
- Impeller seated to far into cover and rubbing the side case cover
- Impeller not seated far enough and impeller rubbing the pump cover
Its easy to spot though, look for a "ring" of wear in the side case cover behind the impeller and in the water pump cover.
Or better measure the installed depth of the impeller using a depth mic, or good caliper

#3
Junior Member
Squid
Thread Starter
Join Date: Nov 2018
Posts: 19

I don't think the bearing is damaged, because there is no hard point when you hand-turn the sprocket.
for the impeller, i'm going to measure it.
In fact, i know it's not supposed to be fully free, but i found it really harder than others water pumps i use to handle.
it must eat a lot of horsepower.....
for the impeller, i'm going to measure it.
In fact, i know it's not supposed to be fully free, but i found it really harder than others water pumps i use to handle.
it must eat a lot of horsepower.....
Last edited by melouse; 01-01-2019 at 09:30 AM.
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