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The oil cooler tubing is about 0.1-0.2mm thicker than 14mm, I sanded it down until the ring of the compression ring fitted.
I have this setup for two and a half years now and no leaks or other problems.
Thanks Disco, that's great info. The trans-cooler lines have the same 14.something mm issue. I sanded them down for the PTshram connectors. Didn't know the oil cooler was the same.
What’s the rationale for an oil cooler if you have good coolant temps from the inline thermostat? Asking for a friend. 😜
Oil temps are higher than coolant temps. With the oil cooler I get the oil temps down, which has undeniable advantages.
Without oil cooler: oil = 240F max, coolant = 188F
With oil cooler: oil = 220F max, coolant = 188F
Both under same conditions.
Thanks Disco, that's great info. The trans-cooler lines have the same 14.something mm issue. I sanded them down for the PTshram connectors. Didn't know the oil cooler was the same.
The lines are are probably made from 9/16" OD tubing (14.2875mm).
I haven't found 9/16" compression fittings, no one makes them. 14mm fit perfectly with a little bit of sanding.
What are PTShram connectors?
What’s the rationale for an oil cooler if you have good coolant temps from the inline thermostat? Asking for a friend. 😜
my '04 with an oil cooler and stock cooling system (refreshed a few years ago with a 180 thermostat) runs slightly cooler than my '04 with the Extinct mod.
my '04 with the mod has a waterpump and radiator that are only few years old.
Edit: to be clear, both run consistently in the the upper 180's.
The lines are are probably made from 9/16" OD tubing (14.2875mm).
I haven't found 9/16" compression fittings, no one makes them. 14mm fit perfectly with a little bit of sanding.
What are PTShram connectors?
PT Shram is a Rover guru who has bespoke solutions for Rover issues. One is a kit for the transmission cooler connector fix. Probably oil coolers as well. He is a great guy. The connectors are similar to the Swaglok ones you used but are press-on vs compression. I use them for my trans cooler after mine blew off the originals. Work well.
This is the PT connector. I have message in with him on availability. It's pretty slick. He has a aviation background so it might come from that industry. You still have to sand down to 14mm but it does not compress so that could be a plus with the whimpy aluminum cooler pipes.
There needs to a pressure relief valve system in one of them or the flow bypasses the cooler.
How would I be able to tell if my front cover has a pressure relief valve? Brand new engine build and brand new genuine LR front cover from Rimmer Bros.
I have an OEM '02 oil cooler and lines I'm thinking about installing.
