Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[raywilb]

 a mate called round & he has said it will be more likely be the oil cooler at fault causing coolant in sump, not the hg blown as the car is running good. could he be right. ?

[duke101]

Other way round! A faulty oil cooler puts oil in the water.

[Andy H]

When the engine is running the oil pressure is greater than the coolant pressure so oil contaminates the coolant.

When the engine is stopped, but still hot, the pressure in the cooling system can push coolant into the oil system.

The thing is that the 'oil in the coolant' is usually really obvious while the 'coolant in the sump' is less so

[duke101]

that the 'oil in the coolant' is usually really obvious while the 'coolant in the sump' is less so

he has drained about 3 pints of coolant out of the sump I believe

[raywilb]

Other way round! A faulty oil cooler puts oil in the water.

so basically it is head gasket - this exactly what I did -( 1), low coolant. topped up approx. 1pint coolant , ran about 5 miles. (2) turned on next morning - low coolant again, topped up , 2pints. ran 3 or so miles. parked up. (3) switched on & warning again. (4) it took another 2pts , but have not turned engine over so header tank is full. the 3 pints in total that's been put in & engine running came from the sump..absolutely clean & that's about 8mls in 2 journeys & no problems engine wise at all.

[Andy H]

Oops - I just assumed V6 and didn't look at your profile.

I don't know if the 2.2 has any weak points in the design that could dump coolant into the sump (press in liners anyone?)

[Doctor Gollum]

Be ripe for a 3.0Cdti conversion... Assuming that the bodywork is mint... Which I guess it must be for what you've thrown at the car since you bought it

[raywilb]

Be ripe for a 3.0Cdti conversion... Assuming that the bodywork is mint... Which I guess it must be for what you've thrown at the car since you bought it

  its not bad, I did notice some surface rust near the sun roof about as big as my small finger nail. It had a private plate (still has) when I bought it , so probably always been garaged. 

[tidla]

go with the oil cooler easy and cheap. when its off, blow some air thru the cooler to check.

(on the oil filter housing i think?)

[dbug]

go with the oil cooler easy and cheap. when its off, blow some air thru the cooler to check.

(on the oil filter housing i think?)

No point replacing oil cooler - wont fix a blown HG 

[Kevin Wood]

go with the oil cooler easy and cheap. when its off, blow some air thru the cooler to check.

(on the oil filter housing i think?)

No point replacing oil cooler - wont fix a blown HG 

I'd be checking it's sound before stripping the engine down, mind.

[Andy H]

go with the oil cooler easy and cheap. when its off, blow some air thru the cooler to check.

(on the oil filter housing i think?)

No point replacing oil cooler - wont fix a blown HG 

I'd be checking it's sound before stripping the engine down, mind.

A quick way of ruling out the oil cooler is to disconnect the water hoses and either link them together or plug them then do a pressure test on the cooling system.

[raywilb]

go with the oil cooler easy and cheap. when its off, blow some air thru the cooler to check.

(on the oil filter housing i think?)

No point replacing oil cooler - wont fix a blown HG 

I'd be checking it's sound before stripping the engine down, mind.

A quick way of ruling out the oil cooler is to disconnect the water hoses and either link them together or plug them then do a pressure test on the cooling system.

  when I took it off all I did was put hose on inlet side of cooler & let water flow through it but no water came onto oil side. also the rate the water has been disappearing like its been said must be HG

[ronnyd]

My oil cooler  has been bypassed for about 2yrs now. As i don,t tow it hasn.t caused any probs. But it is only an inferior 2.2

[Andy H]

go with the oil cooler easy and cheap. when its off, blow some air thru the cooler to check.

(on the oil filter housing i think?)

No point replacing oil cooler - wont fix a blown HG 

I'd be checking it's sound before stripping the engine down, mind.

A quick way of ruling out the oil cooler is to disconnect the water hoses and either link them together or plug them then do a pressure test on the cooling system.

  when I took it off all I did was put hose on inlet side of cooler & let water flow through it but no water came onto oil side. also the rate the water has been disappearing like its been said must be HG

If you follow this guide Pressure testing cooling system you should have a better idea of where the leak is (if indeed there is a leak). Spin the oil filter off before doing the test if you suspect the oil cooler so that any leak in the cooler will be visible rather than going through the main & big end bearings into the sump....