3rd hole in water pump???
 

on the waterpump there is an extra hole on the drivers side on the mounting flange under the bolt holes that actually goes into the pump... what is that for?

Re: 3rd hole in water pump???
 

dont worry about it, its not used, probably for a brackets or something on a different model.

Re: 3rd hole in water pump???
 

well i heard it was for a bypass or something in the block but i have a 96 block that its not used on so i sealed it with metal filler... i just wanna make sure it wont mess up my pump.

Re: 3rd hole in water pump???
 

It's a bypass hole. Used with the correct gasket, it will seal against the block so there's no need to fill it.

Re: 3rd hole in water pump???
 

ehh i figure its just on less spot to worrie about leaks...
also i was wondering if there is a way to test a waterpump with it off the car to make sure all the seals are good?
its a flowkooler pump that was on an old project car and was taken off and has been sitting in a garage for probably 3yrs or so. it spins free but i wanna make sure the seals inside arent gonna leak.

Re: 3rd hole in water pump???
 

woops....posted a reply but i answered a diff question lol