14-06-2018, 10:14 PM
(14-06-2018, 06:44 PM)Tony Betts Wrote: Hi erich,
i have patterns for nippy / grasshopper, and blown Ulster.
Unmachined castings are £750 each unless casting prices have gone up.
Tony.
(14-06-2018, 09:08 PM)Colin Wilks Wrote: The preservation of my Type 65's original crankcase is my major concern. I intend retiring the sports camshaft when I rebuild the engine and will take a view on the crankshaft once it's been crack tested. Knowing I can get a replacement crankcase if everything lets go is very reassuring. I had thought it was irreplaceable.
That crankcase will be a lot more than £750 once it's finished. There is a lot of machining in an A7 crankcase. IIRC correctly, Quarry engineering were charging £2000+ some years ago for a finished blown Ulster or Nippy/Speedy case. That said, it looked a superb piece of work, having a bit more metal in the top deck than Longbridge item.
Personally, I wouldn't use an original 1 1/2" crank or rods in a sports crankcase.