[Hydroglen]

Well...I would agree with things not adding up.
The carbs are ok with the engine running. It is after some 10 minutes or
more with the engine off, that you feel the heat in the carbs. So once the
water stops circulating and cooling, the fires of Hell come in to play and
it all starts perking away!
Original SU carbs. I rebuilt the water pump a couple of years ago, however,
I had the same problem with the carbs even when in the UK. When I did the
pump I also redid the rad and that was pretty much plugged up. The car had
started overheating and so because both had to come off, both were done.
After your suggestion of checking the head last year or so, I took the end
plates off (no fun there) and pressure washed the head as much as I could.
When I say the car runs cool I mean about 85 as read on the gauge, with oil
around the same although the oil does get hotter at times. Not unusual and
very much like my 6C Alfa.
What internal cooler are you referring to? I guess by my question I am
ignorant on that one.
So it would seem I have covered your points, so now the ...further
avenues....
Since by opening the bonnett I solve the problem, is the exhaust manifold an
issue? It does not appear to be hotter than say other comparable cars I have
but maybe I should do a comparison.
I have a Pyrometer and tempelsticks for measuring hot surfaces, so I could
give it a try. If it was much hotter, I would then be asking myself ...WHY?
I had checked my tappet clearence some time ago and no news there as far as
I remember, but then again I may be forgetting. Age plays a part but I know
what I had for breakfast yesterday.... LOL.
Might be worth doing again and erring on the loose side?
O course now that we are down to an outside temp. of some 8c 45F the test
may not be as significant.
What do you think?
Regards,
Dorien