Vehicle & Technical > Discovery

Broke down today

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DiscoCWK:
Well this thread has turned out to be the kiss of death!

I came home from work with the intention of giving the disco a run out tonight as wednesday is pub night!

I noticed that the ground under the disco was wet. I started her up and coolant was dripping off the underside of the gearbox and the exhaust. I took the soundproofing off the engine and the connections from the top hoses to the bulkhead are sound and completely dry. I then notice water is dripping from the soundproofing on the bulkhead to the exhaust and I assume that this is dripping onto the gearbox aswell  :(

It looks like it's the heater matrix  :x (can it be changed without taking the dash out?????)

I had a feel round the back of the engine and it seems dry, so I cant see it being a core plug. If anyone has experienced the same let me know  :?:

cardiff_gareth:
You trying to make me feel better :lol:  :lol:

Well I went to the Disco after work and checked the coolent level, this hadn't dropped so I left the header tank cap off and started it. Ran it for about 5 mins and no bubbles appeared. Drove home, no worries.
Does that mean i'm in the safe or not.

Having looked further it appears that it has a new radiator, new thermostat housing and what looks like a new gasket on the water pump :?:

DiscoCWK:
Not trying to make you feel better!

Try revving it with the expansion cap off and see if the surface of the water is disturbed by a jet like affect.

Anyway saw the chap (has his own MOT/Service/Repair garage) who fixes the major things on my disco (like the headgasket) in the pub tonight and hes confident he can sort it for me next week without removing the dash!

Maybe not the heart-ache I was expecting!

cardiff_gareth:
Well, did my best with a torch but started engine with the header tank cap off and ran for a few minutes, then revved the engine but not to hard as it was cold still but nothing in turns of bubbles or jet effects, just a cool pattern that the vibrations made on the surface  8)
What else can I try to see if head is gone or do you think it may be something else. Should I be leaving the engine to heat up more before revving or is there no difference to this, just get worried running with no cap on for too long :lol:
Hard to do the test with the engine oil filler cap off as tensioner is chirping like a flock of 1 billion budgies  :oops:

I heard a rumour off a guy in Cardiff that the heater matrix can be changed without removing the dash  :wink:

J13 MUD:
I had exactly the same problem with my 300TDI recently, tried everything, it would be fine for a while then overheat again. The RAC guy was certain it was just an air lock but alas no. I took the head off and found the problem to be a pin hole in the gasket by number 4 cylinder, changed gasget and all cylinder head bolts and problem cured.

Just one slight correction on a previous post, skiming the head makes no difference to the gasket thickness, the thickness required is dependent on the protrusion of the piston above the block, whatever gasket it has on when you remove the head should be replaced by the same, just check the number of holes on the edge of the gasket, they can be seen before removing the head just behind the fuel pump.

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