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Bantam D14/4 gears-where to source
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Jamy
Second Gear User
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Forum Posts: 15
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January 2, 2021
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July 8, 2021 - 11:45 am
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Hi Folks,

I've got my 1968 D14/4 gearbox in pieces in an attempt to remedy the common jumping out of 4th gear issue.

My engineer friend tells me I should try and source 2 gears as the (male) dogs on one and the engagement recess on the other are worn.

Part numbers

90-1630 Pinion 29 teeth,

90-1693 Pinion 22 teeth.

Does anyone either have these available, or can tell me where to source them? New would be my first choice. If unavailable then second hand of course.

Thanks in advance, Jamy.

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Coddy
Dorset
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April 22, 2021
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July 8, 2021 - 2:59 pm
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Hi Jamy

Check this out Bantam SLEEVE Gear 29T 

eBay item number:
265188146879
 
or check the web site ** Please log in to view **
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mikef
Chatham Kent
Club Technical Advisor
Committee
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September 30, 2011
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July 8, 2021 - 5:37 pm
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Hi Jamy.
        Normally jumping out of 4th gear is due to wear in the sleeve gear and mainshaft 2nd gear. Mainshaft 2nd gear is hard to find.
Rex Caunt has an e-bay shop and lists a mainshaft 2nd gear but states that it has 21 teeth. I think that this maybe an error in the listing.
I think a phone call to Rex would be in order. Please see link below.
** Please log in to view **

Mike.

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Jamy
Second Gear User
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July 9, 2021 - 8:36 am
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Thanks very much chaps, I'll pursue those lines of enquiry and see what comes.

Ok Coddy, I've ordered new-old-stock part from Ebay, that seems to be just the job.

Mikef; the Rex Caunt part looks to be part number 90-1691, pinion 21 teeth (I counted the teeth from the picture on Rex's site) and not the one I need. Thanks anyway.

Jamy.

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BASIL
Hamstreet,Ashford.
Area Rep
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October 1, 2011
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July 9, 2021 - 8:54 am
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I had this problem with a B175 (same gearbox) I had it pieces 4 times changed the aformentioned gears to no avail then discovered the selector fork for 4th gear was slightly bent and not sliding the gear in far enough, once it was straightened the problem went away. Regards Basil.

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Jamy
Second Gear User
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Forum Posts: 15
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January 2, 2021
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July 9, 2021 - 3:57 pm
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Ooohh that's very interesting Basil, I'll be sure to check that very carefully.

Regards, Jamy.

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