RRC oil cooler on a TD5? as a transmission cooler

[scott oz]

I’ve got I believe a RRC oil cooler? (brand new) and am thinking of using it as a transmission cooler for my 2001 Def TD5. It’s shaped like a U with copper dimples on in.

Is there any reason why this would be unsuitable as a transmission cooler for my vehicle?
?

[LOVEMYRANGIE]

Probably wouldn't be that efficient for trannie cooler. With these you want a large surface area and the auto cooler on the RRC aren't really that good.
I would look at what Eaton have available. Have a look at the 18025 cooler. These are used on Roadranger trannies an aren't that much. We use them for all our Eaton boxes.
Cheers

Andrew

[Tombie]

The best upgrade is a P38 cooler..

In the D2 it requires a new set of hoses...

Cost around $1000.00 to set up.

[PhilipA]

I’ve got I believe a RRC oil cooler?

RRC oil cooler???
The only one I know of is in the radiator tank. ( on a 92 anyway , I just looked and it is in the RH rad tank)
The RRC Transmission cooler on the other hand looks like a long pipe cleaner or bottle brush and sits in front of the condenser fans.
Regards Philip A

[scott oz]

RRC oil cooler???
The only one I know of is in the radiator tank. ( on a 92 anyway , I just looked and it is in the RH rad tank)
The RRC Transmission cooler on the other hand looks like a long pipe cleaner or bottle brush and sits in front of the condenser fans.
Regards Philip A


Yep that's the one. The one I have actualy has two rows (two bottle brushes) and when I purchased it some years ago I was told it was for a RRC. However it's in a Leyland box So is it any good:angel: looks to be made in copper.

[PhilipA]

Hmmm, I don't really know.
I have towed about 700KG in 40+ C and the trans overheat light has never come on but others say they are no good.

I think using Transmax Z would also be good insurance as it can take high temps and not deteriorate.

Remember that the fluid should also not get too cool or you get condensation so any cooler should be routed through the radiator to stabilise temps around 80-90 C, as Rover does.
So if you want extra cooling I would go to an aftermarket cooler.
Regards Philip A

[TonyC]

Hmmm, I don't really know.
I have towed about 700KG in 40+ C and the trans overheat light has never come on but others say they are no good.

I think using Transmax Z would also be good insurance as it can take high temps and not deteriorate.

Remember that the fluid should also not get too cool or you get condensation so any cooler should be routed through the radiator to stabilise temps around 80-90 C, as Rover does.
So if you want extra cooling I would go to an aftermarket cooler.
Regards Philip A

Given he drives a Defender, it's most likely a R380 box, so Syntrans is probably a better bet than Transmax Z.

Tony

[PhilipA]

By the time I had waded through the posts mentioning Disco I had forgotten the DEF.
Old age I guess.
Yes Syntrans and probably no need for warming.
Regards Philip A

[scott oz]

I’m about to install the RRC transmission cooler on my Def 110 TD5 (01).

My plan is to mount it on the chasse cross member at the front below the intercooler. Holes drilled and fits perfectly.

I’m thinking of keeping the standard metal pipe to the rubber join. I’ll cut the current swage join/pipe out and replace it with lines from the cooler. I’m told I should use hydraulic olive fittings on the lines picking up the former swaged ends of the pipe, is the best way to do it. Rather than swaging the new hose to the metal lines as currently done.

The alternative is to run full (hose) length from the transmission to the cooler doing away with all the current metal line? More expensive.

Any thoughts?