Back in the 80's when working for Volvo , we had occasional problems with some customers cars which would refuse to restart after a short stop.This was ,it was determined, caused by fuel vapourisation ,causing an over rich mixture. It was cured by introducing an insulating spacer twix the carb. and manifold. On my RP, I have a 2mm. aluminium plate shielding the heat from the manifold. It also ducts any fuel leakage away from the exhaust.

Location: Piddle Valley

Hi Jo
My RP is standard, never had such an interlude.
Its not the petrol.q
Are you sure it is a fuel related issue ?
I think from what you have said I might be tempted to think it could be an ignition problem.
How about trying a new condenser ?
If that makes no difference try swapping the coil.

Nick

Location: Centre of the Universe

You might be right Nick, could be any of the things you mentioned, trouble is the problem is never there in the cold months so I tend to forget about the problem, in fact probably suspect it's gone away.

Still, I will try - progressively - all the various suggestions during the coming months until the problem is sorted, not that its worrying me a great deal, when the car fails to start I just lift the bonnet, sit and watch the world go by for 10 minutes, prime the carb, close the bonnet, start up and ' chunter' away. Lovely !

BTW, I have checked the fuel pipes from the tank to the pump - all clear. Next will be the pump to see that it's delivering what it should, I know the carburettor is clean and correct, then it's start on the electrics, looking forward to it all, much better than gardening.

Regards all.

Joe

Location: Suffolk

Both the Chummy and the Saloon play up in hot weather (around 30) - often stalling when left idling at traffic lights, but restarting after a short time then running roughly until settling down.

Chummy is fitted with a four blade fan, Saloon the original two blade.

I have been blaming the fuel and vaporisation but I have just been told by a club member that in his experience some new 6 volt coils are prone to lose spark when hot- a cooling spray with water often causing a re-start- has anyone had this happen ?

I realise that my version of hot weather may be a bit more uncomfortable than some

Cheers, Tony.

Location: Melbourne. Victoria, Australia.

Hi
In the hot weather my Ruby will sometimes not want to restart. The engine seems to have poor compression as there is very little resistance when tuned over on the handle, but it always starts well from cold and runs fine. I know the timing is right - I can feel a slight kick back on the handle when turned over slowly with the ignition switched on. So I have always thought the hot starting problem is due to vapour lock as a result of the more volatile modern fuel - though I do use the premium BP petrol. As it only happens in the warmest weather, I have done nothing more about it other than contemplate fitting a four blade fan.
Regards
Colin

Location: North Cheshire