'03 Disco II add/upgrade Oil Cooler
Baja
Joined: Feb 2011
Posts: 9,298
Likes: 318
From: Boston Strong
the fittings are on the left hand side of your timing cover,next to the oil sender a good upgrade is a oil cooler or trans cooler from a 4.6 range rover.
they are plentiful in bone yards drop right in and are 30% large than the stock disco coolers
they are plentiful in bone yards drop right in and are 30% large than the stock disco coolers
Baja
Joined: Aug 2013
Posts: 6,902
Likes: 789
From: Huntington Beach CA
I have never heard of using the Range Rover oil cooler. Maybe I need to start pulling those.
I didn't think the mounts were the same. I know the fitting on the Range Rover cooler are screw on and the fittings on the disco are push on, but that just means you need to use the RR lines to the front cover.
I didn't think the mounts were the same. I know the fitting on the Range Rover cooler are screw on and the fittings on the disco are push on, but that just means you need to use the RR lines to the front cover.
Baja
Joined: Aug 2013
Posts: 6,902
Likes: 789
From: Huntington Beach CA
Curiosity got the better of me, so I got off my butt and dug out come coolers.
This is a photo of a range rover 4.6 trans cooler next to a D2 engine oil cooler. The D2 cooler I am showing just for the mounting tabs as I didn't have a D2 03/04 trans cooler, but they are the same as far as tabs:
So I know the RR cooler won't just drop in, but can be installed with some mods. More comparison photos:
And Lastly a photo of the 03/04 D2 Trans cooler mounted on my radiator with the 03/04 tarns cooler under it. The top one is now the engine oil cooler and the lower is the trans oil cooler as it came stock on my 04'.
This is a photo of a range rover 4.6 trans cooler next to a D2 engine oil cooler. The D2 cooler I am showing just for the mounting tabs as I didn't have a D2 03/04 trans cooler, but they are the same as far as tabs:
So I know the RR cooler won't just drop in, but can be installed with some mods. More comparison photos:
And Lastly a photo of the 03/04 D2 Trans cooler mounted on my radiator with the 03/04 tarns cooler under it. The top one is now the engine oil cooler and the lower is the trans oil cooler as it came stock on my 04'.
I like the idea of a larger cooler, but I went for ease of install and would like to leave as much of the radiator free and clear. My temps have been stable, even with 103-105* outside. i don't expect to see that much lower temps, but do like the idea of the oil getting its share of cooling. I would really like to do electric fan conversion, but utilizing the stock shroud some how. Although that may be a stretch.
Been following this thread, and I really like what I see here.
I live in arizona, and it routinely tops 115F here in the summer.
Disco does not like.
Can anyone point me toward where these plugs are for the oil cooler lines?
Amazon sells some great aftermarket oil cooler setups with AN fittings for not much, I used one for my superduty transmission a few years back and it does a great job in the heat.
I'd prefer to use stock holes than a sandwich adapter, but will make the call once I figure out PITA factor in getting to them.
Going to have the truck down for a bit, as my T-case is howling like a banshee, so I like to get it all done at once.
Cooler I'm referencing is here: Amazon.com: Flex-a-lite 4110 TransLife Transmission Oil Cooler Kit - 10,000 GVW: Automotive
I live in arizona, and it routinely tops 115F here in the summer.
Disco does not like.
Can anyone point me toward where these plugs are for the oil cooler lines?
Amazon sells some great aftermarket oil cooler setups with AN fittings for not much, I used one for my superduty transmission a few years back and it does a great job in the heat.
I'd prefer to use stock holes than a sandwich adapter, but will make the call once I figure out PITA factor in getting to them.
Going to have the truck down for a bit, as my T-case is howling like a banshee, so I like to get it all done at once.
Cooler I'm referencing is here: Amazon.com: Flex-a-lite 4110 TransLife Transmission Oil Cooler Kit - 10,000 GVW: Automotive
Rock Crawling
Joined: Nov 2009
Posts: 307
Likes: 11
@abran - how much for a set of oil cooler lines shipped to 85018?
I have a GP longblock installed - do those have the block-off plugs? Truck is 2003.
I do like the fact that the disco has threaded couplings on the oil cooler rather than the clamps from the range rover.
What is the downside of using the sandwich adapter? leaks? routing hoses can't be that hard..
What kind of temp drop have people noticed? I have a low-temp therm in mine and go from 199-206 around PHX in summer with the ultra-gauge.
I have a GP longblock installed - do those have the block-off plugs? Truck is 2003.
I do like the fact that the disco has threaded couplings on the oil cooler rather than the clamps from the range rover.
What is the downside of using the sandwich adapter? leaks? routing hoses can't be that hard..
What kind of temp drop have people noticed? I have a low-temp therm in mine and go from 199-206 around PHX in summer with the ultra-gauge.
Camel Trophy
Joined: Nov 2012
Posts: 3,717
Likes: 248
From: Longview, Texas
Been following this thread, and I really like what I see here.
I live in arizona, and it routinely tops 115F here in the summer.
Disco does not like.
Can anyone point me toward where these plugs are for the oil cooler lines?
Amazon sells some great aftermarket oil cooler setups with AN fittings for not much, I used one for my superduty transmission a few years back and it does a great job in the heat.
I'd prefer to use stock holes than a sandwich adapter, but will make the call once I figure out PITA factor in getting to them.
Going to have the truck down for a bit, as my T-case is howling like a banshee, so I like to get it all done at once.
Cooler I'm referencing is here: Amazon.com: Flex-a-lite 4110 TransLife Transmission Oil Cooler Kit - 10,000 GVW: Automotive
I live in arizona, and it routinely tops 115F here in the summer.
Disco does not like.
Can anyone point me toward where these plugs are for the oil cooler lines?
Amazon sells some great aftermarket oil cooler setups with AN fittings for not much, I used one for my superduty transmission a few years back and it does a great job in the heat.
I'd prefer to use stock holes than a sandwich adapter, but will make the call once I figure out PITA factor in getting to them.
Going to have the truck down for a bit, as my T-case is howling like a banshee, so I like to get it all done at once.
Cooler I'm referencing is here: Amazon.com: Flex-a-lite 4110 TransLife Transmission Oil Cooler Kit - 10,000 GVW: Automotive
You can use a larger transmission cooler for the oil. Same connection (both to lines and radiator assembly). I other words have two transmission coolers... one with motor oil in it and one with engine oil in it.