Oil in both intercooler pipes. Any ideas??

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defenderdog

defenderdog

Active Member
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Bedfordshire
Hi all. I'm currently in the middle of a rebuild and I have just removed the intercooler and I have found oil in the cooler and both pipes. What would cause this? Is this bad news? What's the best way to remove the oil from the cooler? Any advice would be great 👌
 
If it's that tired, you should get it rebuilt or get a new one. There is probably wheel/shaft play there and since you are rebuilding, have it looked at by a specialist.
 
jabber said:
Could be coming from the breather, as well.
Click to expand...
+1 On oil coming from breather.
The oil seals on the exhaust turbine side of mine failed at around 19k, allowing oil to leak directly into the exhaust.
Got a refurbished turbo installed, so was sure of no oil leaks anywhere but still had oil ingress into the intercooler until I routed the breather into a catch can. With the engine running warm, there isn't excessive pressure coming out of the breather like on very worn engines, but there was a lot of mist coming out of it. I am guessing this oil mist is what condenses back into liquid in the intercooler.
It's just possible your engine may be just a little bit tired.
 
ifloochies said:
+1 On oil coming from breather.
The oil seals on the exhaust turbine side of mine failed at around 19k, allowing oil to leak directly into the exhaust.
Got a refurbished turbo installed, so was sure of no oil leaks anywhere but still had oil ingress into the intercooler until I routed the breather into a catch can. With the engine running warm, there isn't excessive pressure coming out of the breather like on very worn engines, but there was a lot of mist coming out of it. I am guessing this oil mist is what condenses back into liquid in the intercooler.
It's just possible your engine may be just a little bit tired.
Click to expand...

I don't think the engine is worn as it was rebuilt about 4 years ago but it is quiet well tuned and I have quiet a large intercoler so I'm wondering if it's pulling more vapour through than normal. It also has a small amount of water in the which I am taking as a bit of condensation as she hasn't moved for a couple of months. Could the small filter thing that sits on top of the cooler hose be blocked. If that's what that is.
 
For the breather, you could fit a Provent 200. That will filter the oil out. There's plenty on the interwebs regarding td5s and the Provent... I'm in the process of fitting one in the next few weeks.
 
trax said:
always have a little oil in there. worry if there are pools and it's smoking a lot
Click to expand...

I drained the cooler out and got about half a spray can lid full. But that's over nearly four years of use. What do you think would be the best way to flush out the cooler.
 
I would'nt worry about it ! Every Turbo Diesel I have had regardless of make has done this in the turbo intercooler pipes ! I think it's mainly coming from the engine breather as a vapour and then condenses in the intercooler/pipes back into oil !
 
Seems very little to worry about?

I've got a most of oil down the radiator grill in front of the intercooler, prob similar quantity, but should be staying inside I'm sure...... Anyone know good source of replacement intercooler for y2k TD5......

(Apols for slight hijack....) A
 
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