V8 Water pump o ring part number HELP

blackoutt

New member
So I'm going over the rig before a big trip leaving Friday, checking fluids, CV boots, greasing stuff, etc. and I see some pink crusties on top of my water pump. It looks like it's coming from the oring that sits on the tube that the water pump slides over when installed, NOT the tstat housing/bypass oring that goes to the waterpump. This oring comes with many water pump kits but I can't seem to find a part number for just the oring. Does any one know a part number or have measurements so that I can source one locally and maybe pull my timing belt off "quickly" tonight to fix?



 
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Sorry no good pics of the little leak I have but I've decided to monitor for the time being and not rush the repair or risk opening other potential leak paths by tearing it all down the day before a trip. I will update this thread with oring sizing in a few weeks when I get back and tear it down for repair.
 
Nice! Thank you!

I looked again after work, it's been sitting for two days and there was wet coolant around the pump and reservoir level dropped 1/4". I couldn't take off for the trip knowing its that bad. Tore it down to find a leaking oring on the tube AND a bad water pump with only 10k miles on it! Confirmed it was gates brand and filled out warranty info for it. Now to source parts locally and get the rtv drying to attempt to salvage the trip.

Edit: Found a somewhat local dealer with the pump, gaskets, orings in stock for a great deal too. Headed out to pick them up and reassemble today.

Lots of crust at weep hole
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Weep hole
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The oring leak. Not sure how I went 10k like this.
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Got water pump kit and coolant from Royal South Toyota in Bloomington Indiana, great parts department there with lots of stuff listed on eBay for easy browsing ahead of calling them.

Reassembled that Friday and took off for my trip that Saturday morning. The gasket surface of the block had some depressions where the old gasket sat. I spent a ton of time cleaning and trying to get it flat but ended up putting some fipg on the back side of the gasket to be safe. Topped off coolant along the way as it bled the air out and put ~3,500 leak free miles on.

Facebook kindly reminded me that I pinched the little oring a year ago when I first did the water pump and must have replaced it with a sub par part.

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