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Power Strokes
7.3 Tech
Water pump oring surface corroded
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[QUOTE="blaze42069, post: 1285153, member: 1114"] Hey guys I've search alot for this issue and can't find much. The wife's 02 excursion has a slow leak on top of water pump near the coolant temp sender. The previous owner kept filling up the res and told me the pump was leaking when i bought it. I figured let's throw a new pump in, simple and easy. I ordered the billet t housing, the diesel site thermostat, and flushed the whole system. Well when I pulled the pump the front cover was corroded and pitted only where the oring sat. So I cleaned surface as good as possible with a scotchbrite pad and put a light coating of rtv sealant on both sides of oring prior to install. Still leaking just enough to drip. Can I pull the oring and just use rtv in the oring groove? Or do I need to pull motor and replace the front cover? There's also a little moisture coming from the heater core so I think the previous owner just used gas engine anti freeze and maybe there a reaction between the mixed anti freeze causing corrosion internally. Maybe just time for a new core tho too. Anyone ever heard of this? Thanks [/QUOTE]
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