So i replaced water pump.... and..

[yodannyc]

So i replaced my water pump on my ea82t and while i was doing it i decided to completly remove my AC unit. when everything was back together i proceeded to put on the V-belts and noticed my water pump pully did not line up with all the other pullys its just a tiny bit too long. the belt still went on and well actually it runs and works fine. but my belt runs at an angle now. and i am only running one belt currently. So is this going to be a problem if i leave it like this? or should i re-do the job and go get the right size water pump. If it works now and i havnt experienced any problems i should be ok right? its been three days now that i have been running this.

[TomRhere]

It will chew the belt eventually....

 

If your A/C compressor was mounted to the outside of the altenator, you need water pump for a Non-A/C engine.

 

Compressor mounted inboard of altenator is factory equipped A/C, and takes the longer pump.

 

Longer pump has studs for mounting pulley and fan, shorter pump uses bolts.

[GeneralDisorder]

The difference is 10mm, and using the wrong pump will cause the belt to wear badly. You can use a shorter pump on a long-shaft engine by spacing it out, but not the other way around. They should have asked you when you bought the pump but a lot of places don't know there's a difference. Half the time I get the wrong one the first time. Always compare new parts to old to make sure they are the same before installation.

 

Both use studs to my knowledge, but you could substitute bolts if you were not installing the clutch fan (non AC models don't have one).

 

GD

[idosubaru]

that EA82 water pump madness is annoying. i'd install the right one. that puts additional loads on the water pump shaft that it wasn't meant to take as well. i wouldn't be surprised for it to work for a long time, but i also wouldn't be surprised at all if the water pump bearings or seals failed early.