Re: Overheating

[Dave Biggs <D.Biggs@domain.elided>]

David Sims wrote:
> 
> I received the following query via email and would like to invoke the
> collective wisdom:
> 
> TIA
> 
> My stag has always behaved itself when it came to the cooling system NEVER
> moving passed the Normal position.
> One day My RAD leaked, the car almost overheated but didn't !
> 
> I go the RAD rebuilt,,
> 
> Now ever since then the temp always goes very high and indeed eventually My
> Head warped !!!
> 
> I have just skimmed the head and rebuilt the engine ...
> 
> BUT it is still running hot ,,,
> 
> The Odd thing about it all is , if I have the Heater on HOT the temp is
> perfect !!!!!!
> 
> When I put the heater on Cold it starts to run Hot, and will eventually
> overheat ...
> 
> For some reason I don't think water is circulated properly around the
> radiator, But when I put the heater on hot, the heater seems
> to be taking the prominent role in cooling the car down ...
> 
> Do you think this could be the Radiator being faulty or the Water Pump being
> inefficient ?
> 
> Any ideas,

David,

Are you sure that the rebuilt rad is of the same construction as the old
one. Check that they haven't fitted a modern style core rather than the
original 4 row D type.

Regards,

Dave.
-- 
	Dave Biggs                       
	Senior Design Engineer 	
	Fujitsu Telecommunications Europe Ltd, 
	Birmingham Business Park,Solihull Parkway, Birmingham, B37 7YU.
	mailto:D.Biggs@domain.elided  tel: 0121 717 6094  efax: 0121 717 6014