[doc] Re: More Cooling Problems

["jchapelhow" <chapelhow@xxxx>]

Paul.

You have my sympathies!

Martin

I will definitely take you up on your offer of advice/chat tomorrow. 
It does sound like the route cause of both the problems will be 
similar....


John Chapelhow 

DOC 19 : 'Boeing' 0737 (flightless)



--- In doc-uk@xxxxxxxxxxxxxxx, webmaster@xxxx wrote:
> Paul, the thermostat is quite easy to change and despite what both 
Darren Bowker and Steve Wynne said independently, they haven't been 
reliable in _my_ experience :-) However if you can make the 
temperature fall by turning on the fans, then it isn't the thermostat.
> 
> It sounds like the water pump isn't circulating as well as it 
should - ie is good enough at idle but not when revved. At a 
standstill, revving the engine with the fans on should make the temp 
come down FASTER as the pump's circulating the coolant a lot faster.
> 
> John's is overheating within a couple of miles which sounds more 
like head gaskets, or completely failed pump - yours could be what 
Walt suggested... would have to have a look to get a better idea.
> 
> Martin
> 
> > My car developed this fault last year and I'm still not sure that 
it is
> > fixed as I haven't had time to drive it. In fact I think I've 
driven the car
> > once this year so far. I have the fans wired so I can put them on 
when I
> > like. I have the bleed kit installed. When I'm stuck in traffic 
and the
> > temperature starts to rise I can make it go down by turning on 
the fans.
> > However, when I drive fast the temperature goes up and up and I 
have to slow
> > down or stop and let it cool down again.
> > At least that is what WAS happening. I had my mate flush the 
system as I
> > thought there was a blockage. He said the water came out clean 
and would
> > have expected it to be brown if there was a blockage. I'm going 
to try a
> > drive about soon and see if it still overheats. Please don't tell 
me to take
> > out the thermostat or anything like that as I only found out the 
engine was
> > in the rear when I went to stow some luggage!
> > Paul
> > 
> >