Author Topic: oil cooler  (Read 221 times)

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Offline melinprov

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oil cooler
« on: July 07, 2020, 10:56:50 PM »
so I took off my oil cooler ( I had to get the deep socket or I would have had it off already ) and found water and oil and clean 1/2" and smaller rocks in the top part where it bolts up to the block and in the bottom where the tubes are I also found small rocks and gravel in a oil sludge and I think some water--but it may have leaked down from the top as I turned it-is this normal?---I wouldn't think so--- thanks again for all the help on this project! here's a photo of the contaminated oil I pulled out a few years ago-any comments?

Offline Plugcheck

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Re: oil cooler
« Reply #1 on: July 08, 2020, 11:11:03 AM »
Rocks anywhere in an oiling system would definitely be bad, but I'd be curious to know how they got there.   From the picture it appears to be dirty oil, can't tell if there is water in it, but it's not milky.
Michael
1979 CVZ-18 388 CI Vortec Mouse
1980 CVX-16SS 140 Mercruiser
1979 CVX-16 Johnson 175
2002 Bennington 2275CC 90 Mercury
1985 Intimidator project
1989 Lowe 200 Redneck fishin Toon
2001 Godfrey Sweetwater pontoon 115 Rude

Offline melinprov

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Re: oil cooler
« Reply #2 on: July 08, 2020, 11:49:19 AM »
Id like to know too!  there must be some sort of grate or filter on it somewhere maybe in the drive? here's what the top looked like. The sea pump looked fine to me. Perhaps the previous owner hit a sand bar or something and it sucked it up into the engine. That oil is slightly milky but mostly dark, I did find some liquid type rust under the pan gasket but it wiped off. The oil filter was clean and only dark oil came out

Offline melinprov

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Re: oil cooler
« Reply #3 on: July 25, 2020, 05:38:11 PM »
this is still a mystery to me I cant really find anything severely wrong....I did find some green corrosion in the copper tubing inside the oil cooler -perhaps I will just get another one on e bay the next time it comes up for sale, I may take it out to a radiator shop to PSI check it in the meantime. This is the last thing holding me up from putting the engine back together now

Offline melinprov

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Re: oil cooler
« Reply #4 on: July 31, 2020, 03:44:35 PM »
Bah..... hard to find someone to PSI check it. I will keep trying and even go out of town if I need to, I need to check my gas tank also. Has anyone ever done a  DIY "home" psi check?

Offline Plugcheck

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Re: oil cooler
« Reply #5 on: July 31, 2020, 04:29:08 PM »
I test a number of things for leakage around the shop, cooling systems, radiators, ourselves, hydronic systems, etc.   Nothing too fancy about it, seal up the ends, put a fill valve with a gauge, and pressurize.  A bike pump works good.   Just be sure not to over pressurize.  I like to use a valve to allow the test item to sit awhile under pressure.   If it leaks, put it under water and see where the air comes from.   I do this with exhaust manifold sometimes to find internal cracks.
Michael
1979 CVZ-18 388 CI Vortec Mouse
1980 CVX-16SS 140 Mercruiser
1979 CVX-16 Johnson 175
2002 Bennington 2275CC 90 Mercury
1985 Intimidator project
1989 Lowe 200 Redneck fishin Toon
2001 Godfrey Sweetwater pontoon 115 Rude

Offline melinprov

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Re: oil cooler
« Reply #6 on: August 01, 2020, 01:53:36 PM »
what do you use to seal it up? and can you easily remove that material? When using a bike pump / with a gauge- do you just use a needle or some other attachment? good info ! I do have a compression test kit perhaps that is useable in some way?  do you have pictures of your set up?

Offline Plugcheck

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Re: oil cooler
« Reply #7 on: August 01, 2020, 09:03:26 PM »
No pictures, but whatever your testing, just find something to seal it up with.  I've used a 2x4 with cheap bathroom rtv to seal up an exhaust manifold.  Air input was a scrap of 1/4" Plexiglas with a Schrader(tire) valve and a scree in air pressure gauge.  Sometimes even plastic bags and tape is sufficient to seal up the ends.
Michael
1979 CVZ-18 388 CI Vortec Mouse
1980 CVX-16SS 140 Mercruiser
1979 CVX-16 Johnson 175
2002 Bennington 2275CC 90 Mercury
1985 Intimidator project
1989 Lowe 200 Redneck fishin Toon
2001 Godfrey Sweetwater pontoon 115 Rude