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Conquest Drophead overheating

Posts: 342
Joined: Mon Mar 07, 2016 9:59 am
Location: Birmingham

Re: Conquest Drophead overheating

Post by simonp » Thu Nov 30, 2017 2:52 pm

Good advice I think Stan. I had got it into my head that rads never needed servicing if you used the car regularly.

Daimler SP 250 - "To feel its eager response as you open up is to know a new motoring adventure"(Sales brochure) The adventure continues!

David Williamson
Posts: 3
Joined: Mon Feb 15, 2016 10:41 am

Re: Conquest Drophead overheating

Post by David Williamson » Thu Nov 30, 2017 9:33 pm

Thanks everyone.
No plans to do a major engine job as the car is running like a clock and performing very well. Only the overheating issue so I'll start with the radiator.



Posts: 12
Joined: Fri May 13, 2016 7:26 am
Location: Espoo, Suomi - Finland

Re: Conquest Drophead overheating

Post by pekkak » Sun Dec 10, 2017 5:42 pm

My Conquest is from 1954 and had overheating problems (boiling on the road a couple of times). I changed the cylinder head gasket. At the same time I flushed the engine block. I noticed a lot of silt coming off between 5 and 6 cylinder holes. So reconed that was enough. No help, boiling again. The radiator core was renewed. They told that the original was of iron sheet metal. New core has 1,5 times more vertical tubes. Also I installed new fan from Mk II. It has 6 blades. Original has 2 blades. Now running fine.

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