I've also looked into this and the problem is holding the hub to accurately
grind it
Geoff Byrne
-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of Jerry Van Vlack
Sent: Sunday, 17 November 2013 1:08 PM
To: Stutzmans; Joe Alexander; Tony Drews
Cc: fot@autox.team.net
Subject: Re: [Fot] TR-4 / TR-6 tranny layshaft bearing mod?
I think Bruce meant the hardness of the material was too hard to machine, a
good grinding house could manage it. Or someone with the proper tooling.
JVV
-----Original Message-----
From: Stutzmans
Sent: Saturday, November 16, 2013 8:39 PM
To: Joe Alexander ; Tony Drews
Cc: fot@autox.team.net
Subject: Re: [Fot] TR-4 / TR-6 tranny layshaft bearing mod?
At my request, my machine shop guy tried to find somebody who could modify
it to take extra bearings. Everybody said it was too hard.
Bruce
----- Original Message -----
From: "Joe Alexander" <n197tr4@cs.com>
To: "Tony Drews" <tony@tonydrews.com>
Cc: <fot@autox.team.net>
Sent: Saturday, November 16, 2013 9:54 AM
Subject: Re: [Fot] TR-4 / TR-6 tranny layshaft bearing mod?
> Ed W. (FOG1) can be very helpful.
>
> Sent from my iPad
>
>> On Nov 16, 2013, at 8:46 AM, Tony Drews <tony@tonydrews.com> wrote:
>>
>> Has anyone modified the TR-4 / TR-6 tranny layshaft assembly to accept
> larger, higher capacity bearings? Turns out the root cause of my
> transmission
> failure was the failure of the front needle bearing in the layshaft
> assembly.
> Before I do the parts search / purchases, I thought I'd check to see if
> there's a longevity improvement that can be made there.
>>
>> It's been a while since the box was apart, and let me tell you - with a
> buggered up layshaft shaft the disassembly is challenging.
>>
>> I'll be replacing, input shaft, layshaft and 3rd gear at least. Also had
>> a
> weird failure where one of the pins that the spring slides onto in the
> overdrive is broken off - may have been an assembly issue.
>>
>> I may have most of the parts needed for the rebuild, we'll see what uncle
> jack's tranny parts stash includes.
>>
>> Cheers, Tony Drews
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