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Engine basics => Engine set up tips => Topic started by: bob whitney on January 10, 2021, 06:24:32 PM

Title: FP 40 & T/T, GP 40
Post by: bob whitney on January 10, 2021, 06:24:32 PM

just picked up an OS FP 40 with an RK under the lug and a Thunder Tigre GP 40 with an NF under the lug' can anyone tell me who worked on either of these engines

Title: Re: FP 40 & T/T, GP 40
Post by: Air Ministry . on January 10, 2021, 06:58:51 PM

TT is a clone .of the OS .

Title: Re: FP 40 & T/T, GP 40
Post by: bob whitney on January 10, 2021, 07:09:37 PM

i understand that but someone has worked on each of these engines and singed the under side of the lugs

Title: Re: FP 40 & T/T, GP 40
Post by: Dan McEntee on January 10, 2021, 07:12:15 PM

  If they letters are stamped, that was done at the factory for some reason. Most engine rework people use an engraver signature of some kind, as far as I have seen. Randy signs "randy" with a number. Tom Lay was "T&L" with a number, Byron Barker signed "Byron" with a number , I think,  Larry Foster signed L&J with a number, and that's all I can think of right now.
   Type at you later,
   Dan McEntee

Title: Re: FP 40 & T/T, GP 40
Post by: BillP on January 11, 2021, 07:27:39 AM

My GP40 has KG stamped under the left lug and FP40 has CR. Bought both of these new so like mentioned already yours are probably factory stamps.

Title: Re: FP 40 & T/T, GP 40
Post by: bob whitney on January 11, 2021, 03:45:18 PM

well two for 2 seals the deal,thanks