[Fot] top hats

[Bill Babcock]

We don't need no stinking top hats, it was a bad design when they made  
them. We need a good thrust bearing, bearing face, and bushing.

On Jun 17, 2008, at 7:48 PM, Rob wrote:

> I would like to nominate  uncle jack to make a run of new and  
> improved   top
> hats             go Celts   41-67 3rd 1/4
> ----- Original Message -----
> From: "Randall" <tr3driver at ca.rr.com>
> Cc: <fot at autox.team.net>
> Sent: Tuesday, June 17, 2008 3:06 PM
> Subject: Re: [Fot] top hats
>
>
>>> That sounds like a countershaft bushing issue not the top
>>> hat.
>>
>> I agree.  The "top hat" bushing goes in the middle of the  
>> mainshaft, with
>> the 'brim' between 2nd & 3rd gear and the 'crown' carrying 2nd gear.
>>
>>> With cases getting scarce they are worth saving through
>>> machining and adding a shim to fix the problem you describe.
>>
>> Ok, a bit of thread drift here ... if you were machining that part  
>> of the
>> case anyway, why not go all the way and put in a Torrington (radial
>> roller)
>> bearing ala Stag instead of the simple thrust washer that seems so
>> inadequate ?
>>
>> The Torringtons seem readily available and reasonably priced.  Of  
>> course,
>> the tool to cut that surface would be interesting, but you've got  
>> to solve
>> that problem anyway even if you're just cleaning it up for a shim &  
>> thrust
>> washer.
>>
>> Randall
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Bill Babcock
Babcock & Jenkins
Billb at bnj.com
503.936.7660
www.bnj.com