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TR2/3/3A TR3 water pump question

DaveC

Freshman Member
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I'm putting the engine back after replacing main and big-end bearings. After putting the old water pump back, i was in the process of putting the fan belt back on, but found that i couldn't turn the water pump by hand.

I don't recall if the water pump should turn by hand with the fan belt off, and dry. Sorry if this is a stupid question, but would it normally, or is it bound up? The only difference is that there's a new gasket and some permatex but if anything that would make the impellers further from the housing not closer.

dave
 

TR3driver

Great Pumpkin - R.I.P
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There could be some small resistance, but you should still be able to turn by hand; especially with a previously used pump.

I don't know what to suggest the problem is, but definitely worth pulling it back off to see what's what, IMO. Also double-check that something isn't up against the back of the pulley. It runs pretty close to the two (or three) studs; if you've had the studs out there might be one that didn't go back all the way.
 

DavidApp

Yoda
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While you have the pulley off check the fit of the pulley to the shaft. If there is any play (you can move the pulley up and down) consider getting a new pump and pulley.
If it comes apart on the road it will probable ruin your trip.

David
 
OP
D

DaveC

Freshman Member
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Well, it was all my fault. A small amount of permatex had got as far as the impeller and stopped it turning. A good clean and everything is fine.

thanks all

dave
 
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