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Some of you may have read a couple of my previous posts about the overheating problem my 1994 Ducato currently has.
It overheats after about 40 mins, when on a decent dual carriageway or motorway, when doing a steady 60mph +.
I've had a new thermostat fitted, and a new rad cap as the old one wasn't maintaining pressure.
The AA and the garage checked for gases in the expansion tank and found none, suggesting the head gasket was ok. My garage has now informed me that they believe it is the head gasket as the gases only build up in the cooling system when the engine is at high revs, i.e. when at speed on a motorway. This then builds up pressure in the system leading to overheating.
Sounds reasonable to me; just thought I'd sound out the hive-mind here, though.
Anyone had this problem?
Thanks,
Steve
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Hi have you or the garage checked that the radiator is clean given the age of your van it is possible the the core may be partly blocked, if it is the system would cope with low speed but as you increase the power it may cause it to run hot?, is the external of the rad clear of leaves and road much which can slow the air flow and reduce the cooling effect. These are things I would check before going to the expence of removing the head.
we have some friends with a similar age van and they took it to a friend of mines garage and he found the radiator partly blocked.he also confirmed he had seen quite a few with this problem
Tissy
Any creamy coloured deposit on the inside of the oil filler cap? If head gasket going chances water could also escape into the oilways as well as the gas ports in the head gasket. This is an indication that I'm sure the garage would have checked given their suspicions raised...
On the basis of age related radiator issues I had a blocked radiator on an old A35 car which when flushed out promptly leaked but was repairable in those days before plastic! The other component is the water pump but this link would be worth reading as a confirmation of the point raised in the previous post about flushing the rad.....
Overheating issues
Scary link to test for clogged radiator! This looks dangerous to try at home but is interesting, again backing up clogged rad theory!
Scroll to about halfway
The AA and the garage checked for gases in the expansion tank and found none, suggesting the head gasket was ok. My garage has now informed me that they believe it is the head gasket as the gases only build up in the cooling system when the engine is at high revs, i.e. when at speed on a motorway. This then builds up pressure in the system leading to overheating.
Sounds reasonable to me; just thought I'd sound out the hive-mind here, though.
Anyone had this problem?
Thanks,
Steve
The gases would still be there though as they would not dissapate that quickly surely.
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