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I have the awful feeling...
« on: 17 April 2013, 09:13:24 pm »
... I may need a new head gasket. Not being the most technical of types :haha:. The Bus had been sat doing not a lot for a couple of months, then we moved house (on the day we had the worst snow for 30 years) and it has been really hammered for a few weeks moving everything, towing the trailer up and down etc. I noticed the other day that after it has been started then stopped water drips from the expansion tank pipe leaving a little puddle. It doesn't need to have been running long to start dripping. Other than that its running fine and the oil looks Ok and so does the coolant. Any ideas? 
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1950 80" Tdi, the Bus
194? M201 J**p trailer
50% of a 1952 80" V6 "the BEAST"

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Re: I have the awful feeling...
« Reply #1 on: 17 April 2013, 09:49:54 pm »
Before you do anything drastic, Steve, invest in a new rad. cap. A worn one allows the coolant to boil at a lower temperature, giving the symptoms you've described. Fingers crossed!  ;D
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Re: I have the awful feeling...
« Reply #2 on: 17 April 2013, 09:55:54 pm »
Cheers Stiggy
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1950 80" Tdi, the Bus
194? M201 J**p trailer
50% of a 1952 80" V6 "the BEAST"

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Re: I have the awful feeling...
« Reply #3 on: 17 April 2013, 11:35:54 pm »
 Can you look in the expansion tank, see if there's bubbles rising?
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Re: I have the awful feeling...
« Reply #4 on: 18 April 2013, 12:53:53 pm »
Check your oil. If it's the consistency of emulsion and a dirty creamy black, water has got past the head gasket and into your oil. Could also be an air lock in the cooling system or blocked rad.
 
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Re: I have the awful feeling...
« Reply #5 on: 18 April 2013, 08:10:39 pm »
It's possible for a tdi head gasket to let go without contaminating the oil - Bitsa did this to me just after christmas - ran fine, just threw water out of the radiator overflow all the time it was running, unless you undid the rad cap (at which point it harmlessly bubbled combustion gas through the coolant system and out).

Turned out to have blown between one of the center pots and a waterway. I threw another gasket on it, and it's been fine since.
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Re: I have the awful feeling...
« Reply #6 on: 18 April 2013, 09:25:20 pm »
Right, I topped water back up and had it running on tick over or half an hour with no leaks and no bubbles in the header. Got chance later to take it for a spin up a big hill and everything seems fine, running really well, oil and coolant look normal too :-?. So I don't know why it has been dripping.
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1950 80" Tdi, the Bus
194? M201 J**p trailer
50% of a 1952 80" V6 "the BEAST"
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