Engine overheating

phippsey27 · Jan 13, 2014

Hi guys, this is a question for a friend, he has just put head gasket on his disco300tdi also replaced rad and water pump, problem is massively overheating, we have been bleeding system for last 2 days blowers hot all hoses hot, new thermostat but still as soon as he drives 5 miles water peeing out of expansion tanks and no water in bottom hoses. Any ideas I'm stumped now.

Carrington224 · Jan 13, 2014

Sounds to me the head gasket ain't done the job, was the head pressure tested.

phippsey27 · Jan 13, 2014

Well this problem is very new head gasket was done about 6 weeks ago and fine up until 5days ago when the rad began leaking

YOREVOL · Jan 13, 2014

has a pressurising cooling system caused the rad to go? sounds like the original problem isnt remedied. but i had a cavalier about 20years ago that had 3 headgaskets before i found the pressure cap wasnt holding pressure. it would overheat at normal temps and dump coolant out of the header tank.

phippsey27 · Jan 13, 2014

Not the cap. Sadly swapped it with mine done the same

bigdog81 · Jan 28, 2014

Have you checked the head bolts are tightened correctly? Lol

danspann · Feb 21, 2014

I actually have this same issue....new head gasket,new water pump,skimmed head,new viscous coupling....pushing the water out of the expansion tank....contemplating changing to a new head(have a new style head and head gasket)...any more advice is appreciated....oh and the head was tightened to the values quoted and using the angle gauge

tetsu0san · Feb 21, 2014

What brand of headgasket have you used?

danspann · Feb 21, 2014

I have used the elring...3 hole...head was skimmed by 6 thou

tetsu0san · Feb 21, 2014

Not sure about the amount taken off, but elring make good gaskets. No complaints there I think.

phippsey27 · Feb 21, 2014

Turns out the head bolts had come loose some how. Has happened twice now so have replaced bolts. Fingers crossed.

tetsu0san · Feb 21, 2014

Never heard of head bolts coming loose. Or at least I have never come across that happening. Glad you know the issue though.

Fujiwara · Mar 2, 2014

face the same problem before. i've changed all the head bolts (M10 x 117cm 4 pcs, M12 x 140mm 10 pcs, M12 x 100mm 4 pcs) then problem solved... hope will solve yours too.

bigdog81 · May 27, 2014

Ended up marking all head bolts up after tightening with white marks so could check quickly if problem returned. Seems perfect this far.

dstainton · Sep 18, 2017

Locktite?

chris-the-gerbil · Oct 4, 2017

It was three and a half years ago you know....

Engine overheating

phippsey27

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Carrington224

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phippsey27

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YOREVOL

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phippsey27

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bigdog81

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danspann

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tetsu0san

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danspann

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tetsu0san

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phippsey27

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tetsu0san

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Fujiwara

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bigdog81

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dstainton

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chris-the-gerbil

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