Rover Sports Register Forum

I encountered the situation of smooth engaging when cold and difficult engaging when hot many times. The spigot bearing was never the reason, nor oil on the clutch plate. It was always to do with in sufficient withdrawal of the clutch plate backwards, mainly because of incorrect clutch adjustment. O...

I doubt if it has anything to do with oiling or spigot bearing. Most probably it is clutch drag because of insufficient clutch cable travel. Read more here:
http://www.rover-forum.thersr.co.uk/vie ... utch#p8835

Some pre heater head back cover 1946 engine with improvised heater:

The parts catalog pictures refer to 1947. This is the first year when heater was introduced to the hard top models. The head back seal with the thermostat and hot water outlet was introduced only in that year, they were not needed previously, and were different. The tourer project aimed in exporting...

I am not sure that heater was original equipment on the tourer. On pictures of some, Including my own, I haven't found a trace of it.

It is absent on my tourer #63

|f the needle valve is sticky it can reduce the fuel flow when the carburetor heats up. I guess your car is using an SU. The needle valve is in the top cover of the float chamber.
What is the general condition of the carburetor? In the WSM you can find detailed instructions how to diagnose it.

Marginal needle valve?

The freewheel tail bearing (22) is 6219A (90X50X20 mm).
Free Wheel housing oil seal c122 1-3/8 X 2.816 X 9/16
Check the shaft (31) . If worn where the seal is running it needs hard chrome coating and re grinding to original dimensions.

About 10 years ago I saw a nicely restored P2 gearbox at the Formhalls boot
https://www.formhalls.com/gallery-2/

You can see here how to adjust the free wheel and how it works
https://lulis.org/2020/06/28/17027/