Having rebuilt my spare engine I have done about 300 miles.
All went well, particularly the lip seal fitted to the gear box input shaft.
The Zenith always gave trouble either always stalling at junctions or racing if trying to prevent stalling. Thanks to Rauridh I found the reason, I had what he described as a number one float chamber with a number two type body.
To cure this I bought an 1 1/8” SU although this still requires a bit more tuning it has made a big difference to the performance of the car.
It now ticks over like a steam engine, which also cured the kangaroo reversing, leave at tick over, release clutch, smooth walking pace reverse.?
To check the needle settings I went to Newgale today making the most of a rare sunny day.
Coincidentally I found this photo taken 65 years ago (I am seated in the back seat) of what was the road, which is now the lay-by.
I am using an “AN” needle to start with which looks reasonable so far, I have a few more to try one day soon.
Roger
Location:- Haverfordwest, Pembrokeshire.