24-06-2019, 12:07 PM
My 1929 Fabric Saloon has the exhaust downpipe wrapped and an aluminium heat shield between the updraught carburetor and exhaust.
There are no ventilation holes in the bonnet and I have had no vapourisation problems in use.
The only problem ever was on the way down to Malcolm Parker's Masham to Kelso run. We climbed to the top of the highest surface road in England in very hot weather (For England, high 20s). And stopped at the top to survey the view. When we got back it was a bit reluctant to start because the petrol was boiling in the float chamber. However it did and ran badly with not much power for a couple of 100 yards then resumed normal running.
There are no ventilation holes in the bonnet and I have had no vapourisation problems in use.
The only problem ever was on the way down to Malcolm Parker's Masham to Kelso run. We climbed to the top of the highest surface road in England in very hot weather (For England, high 20s). And stopped at the top to survey the view. When we got back it was a bit reluctant to start because the petrol was boiling in the float chamber. However it did and ran badly with not much power for a couple of 100 yards then resumed normal running.
Jim