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  #1  
Old August 17th, 2013, 03:31 PM
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Scott Pelly
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Oil cooler line upgrade

Looking for the cooler line upgrade kit for my 94 D90, mine blew last night. Had a "stunt plane" smoke show behind me, pulled over right away with fire extinguisher in hand, but luckily there was no fire.

Wasn't there a listing of all the parts and pieces to put a kit together a while back?
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  #2  
Old August 17th, 2013, 03:48 PM
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Marc-Andre Leger
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You can get them ready made here: http://trailhead4x4.com/index2.html
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  #3  
Old August 17th, 2013, 03:54 PM
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You've been a member since 2003 and are just doing the oil cooler lines now? Yikes. If you search a bit you should be able to find all of the parts to build them yourself, or you can buy them from Trailhead 4x4.
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Old August 17th, 2013, 04:49 PM
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I Google it for you and found this links:

http://www.lrrforums.com/showthread....-s-replacement

I looked on the site, but there are so many answers for the search that I gave up after the 3rd page...
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  #5  
Old August 17th, 2013, 06:23 PM
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Quote:
Originally Posted by maleger View Post
You can get them ready made here: http://trailhead4x4.com/index2.html
More than happy with the kit I got from Trailhead over 3 years ago.. Quality components. Beautiful fit.
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  #6  
Old August 17th, 2013, 11:47 PM
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I installed the trailhead 4x4 lines and no matter what I do, I cant seem to keep the bottom line from leaking where it connects to the radiator. I even broke down and took it to the land rover dealership 3x with no luck. still leaks. has anyone ever experienced this? I even put in a new radiator and it leaks on the new one as well. I know the trailhead lines are excellent, so Im sure its some fault on my end, not the lines any suggestions/ Seems everyone has installed these without problems. thanks!
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  #7  
Old August 18th, 2013, 11:19 AM
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Chris Davis
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I have an upgrade set off my 94 D90 that I don't use as I swapped to a crank driven oil pump--just sent you a PM.

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  #8  
Old August 18th, 2013, 01:49 PM
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Consider capping off and running without the lines. There seems to be opinions that most of our trucks will operate fine without them. I'm going to try this one day when I get around it. I've been running without the electric condenser fan for 5-6 years with no issue already.
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  #9  
Old August 18th, 2013, 02:18 PM
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Quote:
Originally Posted by coffee View Post
I installed the trailhead 4x4 lines and no matter what I do, I cant seem to keep the bottom line from leaking where it connects to the radiator. I even broke down and took it to the land rover dealership 3x with no luck. still leaks. has anyone ever experienced this? I even put in a new radiator and it leaks on the new one as well. I know the trailhead lines are excellent, so Im sure its some fault on my end, not the lines any suggestions/ Seems everyone has installed these without problems. thanks!
Have you tried any other versions of thread sealant? Mine came taped and ready to install, and have never leaked, but maybe try a liquid pipe sealant (you've probably already done this, with 3 or 4 attempts to get the leak stopped). Sounds like a really uncommon problem with these...
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  #10  
Old August 18th, 2013, 03:06 PM
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Common denominator is the lines. Have you asked trailhead to examine them?
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  #11  
Old August 18th, 2013, 04:50 PM
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Quote:
Originally Posted by coffee View Post
I installed the trailhead 4x4 lines and no matter what I do, I cant seem to keep the bottom line from leaking where it connects to the radiator. I even broke down and took it to the land rover dealership 3x with no luck. still leaks. has anyone ever experienced this? I even put in a new radiator and it leaks on the new one as well. I know the trailhead lines are excellent, so Im sure its some fault on my end, not the lines any suggestions/ Seems everyone has installed these without problems. thanks!
Coffee,
I had a problem with the upper line on a '97 I had. Turns out the fitting on the oil line was a bit too deep and would not snug up to the fitting on the radiator to make a tight seal. I had the oil cooler line fitting shaved down at a machine shop and it worked great with no further issues. You may have the same kind of thing going on.
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  #12  
Old August 19th, 2013, 08:49 PM
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Not to hijack, but does anyone have an order of operations for the install?
There isn't much to it, but some sort of instruction would have been helpful. I called trailhead and the guy said he'd walk me through it during install. Unfortunately I'll be installing on the weekend and doubt he'll be avail. Tips also appreciated.
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Old August 19th, 2013, 08:55 PM
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Quote:
Originally Posted by SimpleJack View Post
Not to hijack, but does anyone have an order of operations for the install?
There isn't much to it, but some sort of instruction would have been helpful. I called trailhead and the guy said he'd walk me through it during install. Unfortunately I'll be installing on the weekend and doubt he'll be avail. Tips also appreciated.
It is very simple. Pm me if you have issues and I will give you my cell
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Old August 20th, 2013, 08:06 AM
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Quote:
Originally Posted by SimpleJack View Post
Not to hijack, but does anyone have an order of operations for the install?
There isn't much to it, but some sort of instruction would have been helpful. I called trailhead and the guy said he'd walk me through it during install. Unfortunately I'll be installing on the weekend and doubt he'll be avail. Tips also appreciated.
1. Drain oil
2. Remove filter
3. Remove nut that holds on the cooler assembly (when you remove the filter you iwll see it
4. Remove the two lines going into the radiator (upper and lower)
5. Install assembly with O ring and use the supplied nut
6. Connect the lines to the radiator and use adapters if needed (the upper line should be marked)
7. Install filter
8. Fill up oil
9. Start engine and look for and leaks.
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  #15  
Old August 20th, 2013, 08:16 AM
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Quote:
Originally Posted by coffee View Post
I installed the trailhead 4x4 lines and no matter what I do, I cant seem to keep the bottom line from leaking where it connects to the radiator. I even broke down and took it to the land rover dealership 3x with no luck. still leaks. has anyone ever experienced this? I even put in a new radiator and it leaks on the new one as well. I know the trailhead lines are excellent, so Im sure its some fault on my end, not the lines any suggestions/ Seems everyone has installed these without problems. thanks!
Try using yellow teflon tape on the treads 4 tight wraps (stay away from the end of the fitting).
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Old August 20th, 2013, 08:42 AM
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I replaced oil lines on my two trucks: '95 D90 3.9L and '96 D1 4.0L.

I went two slightly different directions:
- D90: I went with a kit that Ken (on this board) had put together (couple of fittings, adapters, stainless steel braided lines, new thermostatic oil cooler plate, etc.). This is a VERY nice setup, improvement over stock setup (you only cool the oil when it needs cooling). This set me back... Hum... Probably $150.
- D1: PTSchram was selling another kit (couple of fittings, two pieces of tubes) on discoweb for roughly $40.

Both setup have pros and cons. If I had to do it again, I'd go with the PTschram approach on both trucks. The reasoning is that the -only- thing that can fail in his setup are the rubber lines (same as stock BTW! ). Those rubber lines would set you back probably less than $5 at your local part store. You can replace them every 5 years (my stock oil lines lasted over 10) for the piece of mind. You could upgrade to braided stainless steel if you wanted or just put plastic tubing to protect rubber lines. In that case, you could still replace the lines in your driveway (or on the trail) -without- having to go to a shop to get lines made since there is no compression fitting.

Anyway, not trying to avoid supporting vendors here, just offering other options to a known issue.
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  #17  
Old August 20th, 2013, 09:40 AM
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Any place that makes hydraulic lines can redo the stock oil cooler lines. They just have standard-issue crimp fittings on there.
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  #18  
Old August 20th, 2013, 09:46 AM
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Two more tips/considerations.

When applying the Teflon tape, remember to wrap it [duh coffee moment edit] clockwise on the threads.
If your truck has AC, triple check that the routing of the oil lines are clear of the high and low pressure AC tubing. Like keep them 1-inch clear of everything. If you are interested in which one wins in a rub down, that would be the SS braded lines.
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  #19  
Old August 20th, 2013, 10:06 AM
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Quote:
Originally Posted by JSBriggs View Post
Clockwise. so that you are tightening the tape onto the threads, counter could cause it to bunch up/undo. (righty tighty, lefty loosy)

-Jeff


As seen here
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  #20  
Old August 20th, 2013, 10:19 AM
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Quote:
Originally Posted by JSBriggs View Post
Clockwise. so that you are tightening the tape onto the threads, counter could cause it to bunch up/undo. (righty tighty, lefty loosy)

-Jeff
That is a big duh on my part! I forgot to flip the fitting around in my head when visualizing and posting here. What you described is what I was trying to caution him from. Will update my post.
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