200TDI Rad Oil Leak

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Thommo1

Well-Known Member
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166
Location
Fareham
On my Defender 200TDI engine I have an oil leak from the top oil cooler connection on the radiator. I’m hoping I can stop this by ‘nipping up’ the connection but the smaller hose on top is getting in the way of doing this. If I take this hose off does anyone know how much oil is going to come out (if any)? I’m guessing not much if the engine has cooled as a) it’s just an expansion overflow (I think) and b) it’s right at the top of the rad. Would I be right in thinking this?

Am I going about this the right though - should I take the connection out and reseal afresh?

Thanks for any advice in advance.
 
Thommo1 said:
On my Defender 200TDI engine I have an oil leak from the top oil cooler connection on the radiator. I’m hoping I can stop this by ‘nipping up’ the connection but the smaller hose on top is getting in the way of doing this. If I take this hose off does anyone know how much oil is going to come out (if any)? I’m guessing not much if the engine has cooled as a) it’s just an expansion overflow (I think) and b) it’s right at the top of the rad. Would I be right in thinking this?

Am I going about this the right though - should I take the connection out and reseal afresh?

Thanks for any advice in advance.
Click to expand...
the top rubber hose is coolant only the 2 steel pipes are oil and youd lose very little of either, if oil cooler pipe is taper seat nipping might work if its parallel with o ring another o ring might help
 
Last edited:
Well the chap at the garage nipped it up with no improvement (worse!). On taking the oil pipe off it's the union on the cooler that has a knackered thread. He says he couldn't move it to take it off the cooler but am I right in thinking that these things do come off with a 27mm socket and breaker bar? Also would anyone have the part number for the union that fits the taper seal oil pipe?
 
Might come down to a new rad.
Iirc some of the cheaper rads dont come with the unions so it must be possible to remove the adaptor to swap it over?
 
lynall said:
Might come down to a new rad.
Iirc some of the cheaper rads dont come with the unions so it must be possible to remove the adaptor to swap it over?
Click to expand...

That's what I'm hoping. I took a photo this morning which I'll try and up load. I think some careful use of heat and a big arse breaker bar and it should move. Either that or the breaker bar will live up to its name a a new rad will be needed......
 

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Thommo1 said:
Well the chap at the garage nipped it up with no improvement (worse!). On taking the oil pipe off it's the union on the cooler that has a knackered thread. He says he couldn't move it to take it off the cooler but am I right in thinking that these things do come off with a 27mm socket and breaker bar? Also would anyone have the part number for the union that fits the taper seal oil pipe?
Click to expand...
taper seat are ntc3858
 
Thanks for all your help guys. I've only had the thing 12 days and I was hoping to have a few more posts to my name before I started asking for help! What a great place this is!
 
Foxyred said:
Think I have one ntc 3858 ! Pm me and i'll see if I can help
Click to expand...
Many thanks for the offer Foxyred. Unfortunately the old radiator was an after market one where you can't replace the adapt or. I've now had to get an new rad and 2xntc3858 to make it fit the current oil lines.....

I feel like a fully fledged Landy owner now!
 
Make sure you get the correct radiator as there are two types, one has o rings that's is the later model and the oil pipes to fit are over £100
 
I removed mine from my old radiator and put them in my new one. As you suggested, it was with a large deep socket and a breaker bar. I think I used PTFE tape on the threads before putting them in the new rad. Had to go steady putting them in as it's an aluminium one.
 
Well finally got sorted. New rad, but as this had the wrong fittings (I needed taper fit) I was at least able to swap these out for the correct item.

It seems a previous owner has used a radiator with the wrong union type and just fitted as best they could. No wonder the thing was leaking!

All fixed now and a dry joint both top and bottom.......

Glad to be driving her again and thanks for your help guys!
 
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