502 efi oil cooler
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502 efi oil cooler
I have a 1994 powerquest 257 legend that a friend and I replaced the transom assembly / outdrive on. Took it out this past weekend and everything is running great until I got it on the trailer and I noticed oil ring behind the boat. When we had the engine out, I noticed that the oil cooler had froze and busted the braize on the endcap. I had this fixed and installed it. I am thinking that maybe when it froze, it damaged the oil passages through the heat exchanger. Is this possible? And how would I go about pressure testing? I sure hope it is just the cooler and not something more serious! I have read the oil coolers from mercury are cheaply made. Ofcourse anything will bust when full of water in the winter months. Thanks in advance for any replies!
#3
You can bypass the water side of the cooler cooler with a piece of PVC between the hoses then run the engine for a little while (idle is fine) then check for oil in the water jacket. Or remove it, plug one side, air up the other and hold it under water to watch for bubbles. Fittings can be found at Home Depot.
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You can bypass the water side of the cooler cooler with a piece of PVC between the hoses then run the engine for a little while (idle is fine) then check for oil in the water jacket. Or remove it, plug one side, air up the other and hold it under water to watch for bubbles. Fittings can be found at Home Depot.
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I am curious, you say the block had a crack and was repaired ! Repaired with what ?
Is your oil milky white ?
Was is a bad winterize job that caused your problems.
Good luck hope your problems are not big ones.
Brian
Is your oil milky white ?
Was is a bad winterize job that caused your problems.
Good luck hope your problems are not big ones.
Brian
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Where I can get one? I believe it is special for the 502 but not certain. It is the one that cools both power steering and engine oil.
#8
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the cooler is leaking internaly . oil persher is more than water persher there for it forces oil into the water and it comes out the exaust . been there done that . replace it . MR cool . right here on oso . sponcer
#9
Russ
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Mr Cool for all of your heat exchangers and oil coolers , transmission coolers and more!
Locations in: Florida, Michigan & Washington!
Mr Cool for all of your heat exchangers and oil coolers , transmission coolers and more!
Locations in: Florida, Michigan & Washington!