Vehicle & Technical > Discovery

Have I done the head gasket

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clover:
Hi

Right this is what happened this morning.

I came out to the disco (200TDi) as usual this morning. Turned the key and it turned over once then hydrauliced briefly and then fired into life. Weird I thought to myself... its never done that before...

backed off the drive and noticed there was a lot of blue/white smoke coming out the exhaust. Drove up the road and the clouds of smoke out the back were massive. Nearly caused an accident! I went about 1/4 of a mile wondering if I had not better phone up my mate and get him to tow me to the garage as I'll get nicked for this!

Then as soon as it started it stopped. Drove another couple of miles no problem. Came out from work to move it after about 45mins-1hr. Small cloud of blue smoke that cleared once I revved it.

Came out to it at the end of the day. No smoke.

Parked it on the drive and took the air filter off to put the new one on. Reversed it off the drive. Big clouds of blue/white smoke again. As soon as I accelerated up the road it cleared. Came back switched it off started it again no smoke!.

Its not overheating. There does not appear to be any more pressure in the water than there always has been.

The senior mechanic at work reckons its the head gasket failing. Whilst I trust his experience he does not always get it right and I don't want to pull the head off to not find anything wrong!

Anybody got any suggestions?

I hate diagnosing faults with diesels as its all a bit of a magic art to me. Know where I am with petrol engines.

Cheers

Stumpy

Range Rover Blues:
Take it to a specialsit and ask for a leak-down test.  You pressurise the cylinder and look for the leaks, simple but effective.  i don't have the tool yet or I'd offer.

chris9119:
John

I have the pressure testing kit if needed. Are you losing water?

johnpirate:
Mine did this before Christmas.It was the head gasket it had blown from number 3 pot to a push rod hole.It was then pressurising the sump.And pumping the oil up and it chuffed like a steam train from the oil filler as well.

clover:
Hi

Don't appear to be loosing coolant.

Will take the filler cap off tomorrow whilst running and see if its chuffing.

General opinion seems to be that its possibly between one of the cylinders and an oil way and the reason why it stops once warm is due to expansion with heat.

I am going to see if I can get it on the ramp at work Thursday and pull the head off.

Ho hum...

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