99bluetahoe
OBS Enthusiast
- Joined
- Jan 5, 2010
- Messages
- 65
- Reaction score
- 79
Hope something good comes from it. I too would like to add my radiator oil cooler again. No more space in front to add an aux cooler with my whipple's heat exchanger.
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I ran a test today with a aluminum m20x1.5 plug today with neolube 100 thread sealant. I had a brand new acdelco hose connected at the top and i partially filled the cooler with water. I had let the thread sealant cure for a few days first. The factory oring blew out at ~105 psi. The plug with sealant did not leak. I know compressed air and water isnt hot oil, but i believe this sealant is good up to 400F.How high does the oil pressure gauge go to, and then add at least 50%.
I'd expect the fittings--but not the cooler itself, and perhaps not the hoses--to be good to HUNDREDS of psi.
That's disturbingly low pressure for a failure on a system that's probably going to see 80+ psi on a regular basis. Not what I'd have expected.The factory oring blew out at ~105 psi.
I think i need to repeat it a few times to get more data. But these stupid orings are like 5-6 bucks a piece, i feel like they should be in the penny’s if i could find them in bulkThat's disturbingly low pressure for a failure on a system that's probably going to see 80+ psi on a regular basis. Not what I'd have expected.
It's been a year since the last entry here. How did things turn out?I did the test today with the stock fitting with thread sealant(no oring) and 1/4 npt fitting with thread sealant. No leaks from the test fittings or the factory fitting, went up to 130 psi mulitple times. i think the previous test would be an outlier when it failed at 105. This set up i think is how i will build from, its most simply, just cut threads and thats it
Im so far away from putting in a radiator, i havent even bought the replacement yet. I did find a youtube video of a guy doing one of the ideas i thought of with success. I scrapped the idea because after looking at it i didnt see how it wouldnt leak passed a portion of the tubing. I might revisit this since it still uses the proper oring sealIt's been a year since the last entry here. How did things turn out?
I have a '95 Gvan with the oil cooler in the radiator and a damaged factory upper oil cooler hard line that I believe has similar M20x1.5 fittings at the radiator. The upper hard line was discontinued by GM and I have not been able to find a used one at salvage yards so I have been contemplating different replacement options. I ordered a pair of new Delco lower hard lines that have the same fitting at the radiator and 1/2" OD aluminum tubing so I could have an extra one to cannibalize for the fittings and possibly several inches of the hard line that has the male O-ring tube end (whatever they are called) but using that would likely require a compression fitting and I'm not sure that's the route I want to go.