Vehicle & Technical > Discovery
Broke down today
Thrasher:
*NIGHTMARE* ;-)
Sniff carpets - if it smells of anti-freeze - it's a leak, if it smells of wet dog, it's rain.
cardiff_gareth:
I defeniatley smells of a long hired dog :lol:
DiscoCWK:
Hi Gareth,
My Disco 300TDi used to overheat under load - motorway driving in particular.
The first thing I had done was have the whole system flushed and it ran ok for a small while.
Then it began again. The problem was that the system would get pressurised under load and push water out through the expansion cap - the water pump on the 300tdi is at the top of the engine and it doesn't take much of a drop in water level to stop circulation and then overheat. I did a huge amount of research on the internet and that led me to believe that the headgasket was gone. It is possible on a 300 tdi for the headgasket to blow between a cylinder and the water jacket the pressure is high enough to prevent water getting into a cylinder and create steam and as no break exists between the oilways and the water then there are no milky deposits.
Anyway, I had the Head gasket done and it's now fine - You need to be aware that the heads can only be skimmed a small amount, but you can get thicker headgasket (they are marked by small holes - 1 being the thinnest and 3 being the thickest) You can compensate for the skimming by using a thicker gasket. I would also recommend getting the head pressure tested and checked for hardness (If they go soft they will keep warping)
I hope your problem is not the head gasket, but your problem sounds identical to mine.
cardiff_gareth:
how much does it cost then if the head has gone :?:
DiscoCWK:
I would budget for around £650 from your local trusty mechanic. :cry:
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