RCU Forums - Thread Size?

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captinjohn

08-22-2006 05:04 PM

Thread Size?

Does a G38 Zenoah have metric threads on crankshaft? Thanks Capt,n

davewallace

08-22-2006 06:18 PM

RE: Thread Size?

Captain,
It says here it is 8x1.25mm. That would have been my guess for this size Japanese engine.

Dave

http://www.modelflight.com.au/rc_mod...zenoah_g38.htm

captinjohn

08-22-2006 06:42 PM

RE: Thread Size?

Davewallace: Hey....thats a nice site....your right the G 38 is 8x1.25. Is that the same size as 25cc Homelite? I bet not, because the adapter off my G38 does not seem the same. I bet the Homelite is American 5/16x?. Thanks Capt,n

KenLambert

08-22-2006 06:45 PM

RE: Thread Size?

homie 5/16x 24 exept the long shaft

captinjohn

08-26-2006 07:01 AM

RE: Thread Size?

Can anyone tell me what size threads are on a Gt 25 like sold by Scott? The one barrel version? A metric nut does not seem to thread on. also need to know thread size on a MB290 Mac. Thanks Capt,n[&:]

davewallace

08-26-2006 01:34 PM

RE: Thread Size?

Captain,
The Toro has a 8x1.0mm stud at the flywheel and a 8x1.25mm stud at the rear. Most of Scotts early 25cc conversions were Toro as I recall.

Dave

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