25-06-2019, 11:46 AM
(24-06-2019, 10:57 AM)-Chris KC Wrote: We took the bonnet off the Nippy over the Grossglockner many years ago, drove with it standing on my passenger's lap as the car was jammed with luggage!
I think Recks is right, you need the hot air to escape somehow. Failing that, the exhaust must surely be the biggest contributor. Have you tried binding it in exhaust wrap? (eBay) That might shave a few degrees off and looks quite 'period'.
We went over the Grossglockner in 2017 and experienced similar problems. In fact we had to stop so frequently we were playing leapfrog with a cyclist. Can’t remember who got to the top first but we did pack some snow around the pump as we neared the summit.
The following day, I checked the carb ( 1” SU.) and found an air leak between float assembly and the main body. When this was nipped up our overheating problems vanished.
So I would say that running a tad weak could be a factor in overheating and worth looking at.
Charles