640 Adv - blown head gasket or water pump?
Just completed a long piste in Mauritania on 2000 640 Adv.
Discovered that all the coolant in the radiator has disappeared, and the oil has the consistency of a chocalate milkshake, hence there must be coolant in the oil. This would suggest to me that the head gasket has blown.
I have spent the morning searching Adv Rider and the net, and I cant find much info on the 640 Adv blowing head gaskets. Everyone who seems to have oil and coolant problems seems to blame it on the water pump.
I am taking it all apart later today, but interested to find out if anyone else has had experience with water pump and / or head gasket failures.
Also; to get to the head gasket I assume I dont have to completemly remove the engine. Is this correct?
cheers
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