RR TDV8

Andy Clarke · May 10, 2020

Hi All, I purchased an 09 RR TDV8, when I arrived home I noticed black oil in the water header tank. Probably only a small cap full. I removed the header tank and cleaned it. There is no contamination in the engine oil and the coolant is still pink so obviously the oil and water are not mixing. However having been on several sites people are saying it could be the head gaskets. Can anyone help please

RangeRoller dt · May 10, 2020

Doesn’t necessarily mean head gasket.
Does it overheat at all?

Mayonnaise in cap is another example - everyone panics HG failure,, may be due to short runs and nothing wrong with HG.

Andy Clarke · May 10, 2020

RangeRoller dt said:
Doesn’t necessarily mean head gasket.
Does it overheat at all?

Mayonnaise in cap is another example - everyone panics HG failure,, may be due to short runs and nothing wrong with HG.

Doesn’t overheat and no mayonnaise in the cap or on the oil dipstick. Also I would point out that the engine sounds really nice with no knocks. The only thing I would say is that it misfired a couple of times when I drove it home which was about 30 miles

RangeRoller dt · May 10, 2020

Diagnostics is the main way with your type of vehicle unless you can physically find something off

Early days, the others that know more will be along.

Andy Clarke · May 10, 2020

RangeRoller dt said:
Diagnostics is the main way with your type of vehicle unless you can physically find something off

Early days, the others that know more will be along.

Ok thanks, just want some good news as I am afraid to use the car since I noticed the oil. Don’t want to do any damage

RangeRoller dt · May 10, 2020

If you can give us a few clues like mileage or any recent work etc help paint a picture,

Andy Clarke · May 10, 2020

The mileage is 138,234 and the car has full history up to 121,000. I have not had the car very long so don’t really know much more. Would say that when I removed the water tank the coolant was pink and had not mixed with the oil. As I said it was only a very small amount, probably an oil cap full at the most.

gstuart · May 10, 2020

Hi

wonder if it’s oil from a faulty oil cooler , where it gets into the coolant and ends up in the expansion tank

Andy Clarke · May 10, 2020

gstuart said:
Hi

wonder if it’s oil from a faulty oil cooler , where it gets into the coolant and ends up in the expansion tank

Sounds possible, someone else said that maybe a possibility. Thank you

RangeRoller dt · May 10, 2020

^^^ this is the guy you want to listen to

ovalandrover · May 10, 2020

another possibility is there is a leak in one of the the EGR valve coolers

lynall · May 10, 2020

A common scam by certain car buyers is to put a little used engine oil in the header tank whilst the seller is not looking/distracted, then say gasket gone want loads of money off the price?
Beware when more than one person comes to buy your car!

Andy Clarke · May 10, 2020

lynall said:
A common scam by certain car buyers is to put a little used engine oil in the header tank whilst the seller is not looking/distracted, then say gasket gone want loads of money off the price?
Beware when more than one person comes to buy your car!

Thank you, it’s a possibility I suppose. Really not sure what to do now

Henry_b · May 11, 2020

Combustion pressure is significantly higher than the cooling system pressure, hence why you see oil in coolant and not coolant in oil..

Headgaskets failing on the 3.6 aren't unheard of the engine is a pile O shíte IMO.

HOWEVER...

A failed oil cooler will also dump oil into the coolant, thanks to the knobend at ford...

3.6 isn't a good motor, you have to fiddlefúck around with them even for simple things...

Do a sniff test too just to be sure..

lynall · May 11, 2020

Andy Clarke said:
Thank you, it’s a possibility I suppose. Really not sure what to do now

Flush it and run it, then see what develops on the oil side.
Misfire would concern me more.

wammers · May 11, 2020

Henry_b said:
Combustion pressure is significantly higher than the cooling system pressure, hence why you see oil in coolant and not coolant in oil..

Headgaskets failing on the 3.6 aren't unheard of the engine is a pile O shíte IMO.

HOWEVER...

A failed oil cooler will also dump oil into the coolant, thanks to the knobend at ford...

3.6 isn't a good motor, you have to fiddlefúck around with them even for simple things...

Do a sniff test too just to be sure..

Do you mean oil pressure is higher than coolant pressure? There can be leaks in either direction oil into coolant or coolant into oil.

Henry_b · May 11, 2020

wammers said:
Do you mean oil pressure is higher than coolant pressure? There can be leaks in either direction oil into coolant or coolant into oil.

Twas late

Yer..

gstuart · May 12, 2020

ovalandrover said:
another possibility is there is a leak in one of the the EGR valve coolers

hiya

just thinking , if the egr was leaking if u would get water out the exhaust

ps, hope ur keeping safe and well

RR TDV8

Andy Clarke

Member

RangeRoller dt

Well-Sprung Member

Andy Clarke

Member

RangeRoller dt

Well-Sprung Member

Andy Clarke

Member

RangeRoller dt

Well-Sprung Member

Andy Clarke

Member

gstuart

D3 Grandad

Andy Clarke

Member

RangeRoller dt

Well-Sprung Member

ovalandrover

Well-Known Member

lynall

Well-Known Member

Andy Clarke

Member

Henry_b

Think outside, no box required.

lynall

Well-Known Member

wammers

No longer with us, RIP

Henry_b

Think outside, no box required.

gstuart

D3 Grandad

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