Oil Cooler Lines

Robbie

Well-known member
Apr 20, 2004
1,463
1
NOVA
I've been reading all the threads on the D90 sites talking about burnt 90's from the oil cooler lines bursting. i am thinking it might be good preventative maintenance to replace mine on my 95 Discovery since it is 10 years old. First off, is this a problem with the Disco's or just the 90's? Also, there is a place around the corner that does hyrdualic hose - both repair and custom - and I am thinking of just taking my hoses in to them to have the soft lines fixed/replaced. Anything to ask specifically when doing this? Thanks.
 
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syoung

Guest
Robbie- there have been some early Discos lighting up Defender style too... the 3.9 of the early D1 has the same lines as the Defender. The problem is taking NAS D110's out of the food chain on a regular basis too.

If you find a local shop that can make replacements, please share the info. On my race car, I run all external oil lines in high end stainless aircraft grade lines. It's not really cheap, but a couple of lines wouldn't cost enough to hurt for TOO long.
 

Robbie

Well-known member
Apr 20, 2004
1,463
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NOVA
i'm probably going to pull the lines off and take them over to the place tomorrow. it's over on 29 near Merrifield. they have signs up and said they make/repair hydrualic lines. so i'll see what they say about my oil cooler lines.

i am surprised we haven't heard too many discos though? considering the amount of 90's and 110's out there compared to Discos, you'd think proportionally, Discos would be going up all over the place.
 
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syoung

Guest
I've heard of a few Discos, two were 94's. Seems the D90's lighting up are usually early ones- like the 93 D110's and 94/95 D90's.
 
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ShaunP

Guest
Any of those hose doctor mobs can do them, I've had them done here in Oz by Enzed no problem. The factory ones aren't that costly anyway, I got one for a TDI a while back from MR don't remenber it being way dear.
 

abrooks

Well-known member
Sep 23, 2004
601
0
Arlington, VA
Any update? I couldn't find anyone local to touch them a year ago, am currently doing the mocal conversion on the defender. If that place will do them, though, I'll have the lines for the lwb done there.
 
My experience has been that the use of stainless may not be the best way to go. My stainless power steering line wore through by merely rubbing against the ground braid on the block! I have since replaced it with a rubber hose that when the raw material was inspected appeared to be more robust than the stainless.

Where's Bill Bettridge when we need him?

The oil lines are relatively low pressure. Merely chopping off the old lines and replacing with compression fittings, hydraulic hose and hose clamps has worked well on Shopgrrl's truck.
 

Robbie

Well-known member
Apr 20, 2004
1,463
1
NOVA
abrooks said:
Any update? I couldn't find anyone local to touch them a year ago, am currently doing the mocal conversion on the defender. If that place will do them, though, I'll have the lines for the lwb done there.

nope, sorry. putting my swivel ball back together took a little longer than I had planned, so finished that up and called it a night last night. i'll try to pull them off tonight and take them to the shop tomorrow and see what they have to say.

thanks PT. I am thinking rubber hoses with a heat sheath like Peter's are the way to go too. stainless is definitely pretty, but i just want protection.
 

jsonova99

Well-known member
Apr 14, 2005
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47
Snow Hill, MD
I had one go bad on a '99 D1 when I had it. I can't really remember it, I started getting a bad oil leak, and took it right to the dealer, and they told me it was a bad oil cooler line. Not sure that it ever fully ruptured though. Again, it was a few years back, and I didn't know as much about Discos then as I do now.
 
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agro1

Guest
You will find a very good thread HERE
Quite exhaustive, with many different opinions, but very informative.


Paul - Are you saying to cut the rubber hose section off, leave the existing factory fittings, slip a rubber hose over the fittings and use a screw type house clamp will do the trick ? That could be the best "cheap bastard" trick yet...
 

RVRSRVC

Well-known member
May 7, 2004
1,163
0
Elizabethtown, PA
www.roverlab.com
We've been fitting firesleeve over the new hoses just to provide a barrier between the exhaust in general. Can't help if the line is routed in such a way that it abraides on something, though!
Steve, I believe the 94-95 Discos were serpentine belt with integral oil pumps whereas the 94-95 Defenders were v-belt with external oil pumps. The 97 D90's shared many things with the Disco, including the serpentine belt engine. We've had three Disco fires from p/s hoses and three Defender fires from oil cooler hoses. None were devestating but nonetheless scary. (Probably why I carry a fire bottle at each front side door.)
 

Drew

Well-known member
Jul 12, 2004
66
0
48
Baltimore, Maryland
I definitely recommend two fireextinguishers. The heat sleve that Trevor installed over high pressure ps hose is working very well. That freakin hose is so close to the headers it needs all the heat protection it can get.I've had two discos catch fire for the same hose failure.
Drew
 
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agro1

Guest
Sharperover said:
That's what I did with my PS hoses 4 years ago and they haven't leaked a drop since.

Andrew - would you mind providing a quick write up with exactly what you did ? Any pics of the connections would be appreciated. I've been kicking this idea around but it just seems like a hack way of fixing the compression fittings when they start to leak. No offense intended with the hack comment...I would never do it on a high performance motor, but for a Rover it might be an acceptable and cheap fix :)
Oh yeah, one other thing, why did you do it in the first place ?
 

andrewv

Well-known member
I'll have to get pictures in the next day or so, but the actual job was very easy and very straight forward. I undid all of the lines and took them to a hydraulic shop so that they could tell me exactly what type of hose I needed. It's been so long I don't remember, but any shop would do the same and I think the hose came to $8.

If you look at most of the factory lines on a rover, where they transition from metal to rubber, there's usually a metal crimped sleeve over that connection. I used a dremel tool to cut that off, and the rubber part just slid off the barbs. On with the new hose, and being totally paranoid, I double clamped each end.

As I stated earlier, no leaks in 4 years, and once you see a picture of it, I'm sure the comments will be "How ghetto can you get". Well, in my opinion, I don't have to look at it, it works, and it was dirt cheap. Not bad for an English degreed former shop owner.

Pics to follow.
 
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agro1

Guest
Thx for the quick reply Andrew. Also, correct me if I'm wrong...but doesn't the ps line run a much higher pressure than the oil cooler lines ?
Look forward to seeing the pics...