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pcoghlan 04-12-2006 08:05 PM

erm, should this hole be here?!
2 Attachment(s)
midway through putting my engine (SBC) back together and picked up the waterpump to have it cleaned and painted and came across this hole?!


is it a problem? I didnt have any leaks before it came apart but I have never seen such a hole before?



madamstn 04-12-2006 08:29 PM

sbc hole
I have. I don;t remember if sbc. Go to the parts store and compare to others, do you have a fan clutch Is it a big deal- try it or replace it now. I don't remember if you stated what the car is going to be used for. The only idea I can come up with is they didn't want fluid staying between the two bearings. One bearing goes out you get a warning before the fan goes through the radiator- just a thought' I still don't remember where I have seen it , but I have and used it. good luck mark

Jmark 04-12-2006 08:43 PM

There is supposed to be a 1/8" vent hole there. Yours looks like either something rubbed it severly, or someone intentionally ground the nose of the water pump down. Personally, on a new engine, i'd replace it even if it weren't leaking. Its cheap insurance.

madamstn 04-12-2006 09:49 PM

water pump # 2
After blow up- It looks a hammer and chisel hole. Casting looks bent also, the picture looses definition with much blow up. Not a drainor vent hole. Replace it if possible. mark

pcoghlan 04-13-2006 07:46 AM

thanks guys, a replacement is called for me thinks.

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