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narrow case gear selector drum

Posted: Mon Feb 01, 2021 9:34 pm
by PhilR
I am assembling a 350 n/c bottom end for my racer from a collection of parts.. The 5 speed selector drum I have I find is too long by about 5mm (so the cases won't close). looking at parts books I find n/c and wide case engines have diferent part numbers for their selector drums, so presumbly they are different. looks like I've got a wide case drum..
Can anyone confirm this :?:

Re: narrow case gear selector drum

Posted: Tue Feb 02, 2021 2:43 pm
by double diamond
Yes, the widecase selector drum is wider than narrowcase.

Re: narrow case gear selector drum

Posted: Tue Feb 02, 2021 9:19 pm
by PhilR
Thanks, that explains it, live and learn! On the look out for a n/c drum..

Re: narrow case gear selector drum

Posted: Tue Feb 02, 2021 9:49 pm
by Eldert
i just measured both and a widecase selector drum is 6 mm longer the a nc item .

Eldert

Re: narrow case gear selector drum

Posted: Wed Feb 03, 2021 2:19 pm
by double diamond
I can provide you with a NC 5 speed shift drum. Where would it ship to?

Matt

Re: narrow case gear selector drum

Posted: Wed Feb 03, 2021 8:08 pm
by PhilR
Hi Matt, I am in High Peak, Derbyshire (UK).

Phil

Re: narrow case gear selector drum

Posted: Thu Feb 04, 2021 5:18 am
by double diamond
Hi Phil,
I’m in California, some ways from Derbyshire, but I have shipped parts to the UK (Ian with the 175TS in this group) which seemed to have went well. If you wish to proceed, please send a PM and I will let you know what I can offer.

Matt

Re: narrow case gear selector drum

Posted: Thu Feb 04, 2021 12:06 pm
by PhilR
Matt, I think I have sent a PM, but in case it hasn't worked i'm on philransom100@hotmail.com