Fortunately any advertising relating to these units is now marked 'for 12 Volt use only' so you are unlikely to get caught out as I did. Thanks to the help and guidance of those on the Forum I managed to get far more weight behind my complaint than I would have without such support.
By returning the starter to Eurolec who distribute these units, rather than the seller, the firm are showing a strong interest in producing a starter suitable for 6 Volt use and hopefully this will happen within months rather than years.
I have just picked up on this thread and have a question James; Why did you need one of these new starters, what is wrong with the standard 6V starter motor? Just asking as I have never found a problem so I am very curious as to why.
Ian, it may be a personal experience but I've always found my 1935 Speedy to be a bit ponderous in starting along with another couple of other post 1931, pre-1937 A7s with rear facing starter motors. Obviously, lacking a fixed starting handle, being pressure fed with a covered nose cone and having a high compression head may not help. Not an issue in Summer but can be in Winter but to date haven't had to resort to 12 volts. Again have kept on top of the wiring, cleaned contacts and even used an 80AH battery to little improvement and it always starts (provided battery has a good charge). Incidentally, I've found that the higher output battery has transformed starting the earlier Bacon-Slicer motors. Had a bit of spare cash and thought I'd give Powerlite a go !
Thanks James, I am a great believer in sticking with 6V and original equipment where ever possible, and I must say I have never had any issues with any of my cars, hence my curiosity, and of course I agree it's personal preference what modifications if any are carried out. I have a pressure fed speedy type engine in the Nippy and that spins into life easily in any conditions, the engine is reasonably fresh and I completely rewired the car with multiple earth returns which may assist reducing volt drop.