[CAUT] Guide rail pins

John Ross jrpiano at win.eastlink.ca
Tue Mar 16 14:57:39 MDT 2010


With pitted pins, the bushings are probably toast as well.
Don't forget the Bushmaster.
By re-bushing, it will allow you more leeway in your pin replacement.
John Ross,
Windsor, Nova Scotia
On 16-Mar-10, at 5:42 PM, Mark Dierauf wrote:

> I assume that you're speaking of front-rail pins? Can you use the  
> new WNG aluminum pins with their nylon bushings? according to their  
> instructions, the FR holes are first reamed out to .183" and then  
> the bushings are inserted and reamed out with a 1/8" bit to fit the  
> lower FR pin diameter, which is .128".
>
> - Mark
>
> Porritt, David wrote:
>>
>> I’m rebuilding a Baldwin R and on removing the corroded and pitted  
>> key pins, I discovered that the base of the guide rail pins are  
>> 0.177”.  The top (swaged) part is a standard 0.146” but the part  
>> that is driven in the key frame is oversized.  Of course no one has  
>> replacement pins like this so I’m going to have to make some  
>> modifications.
>>
>> Everything that I’ve thought of so far has looked like a major  
>> operation, and will leave lots of opportunity for errors.  Has  
>> anyone run into this before?  What did you do?
>>
>> dave
>>
>>
>> _________________________
>> David M. Porritt, RPT
>> 3024 County Road 2134
>> Caddo Mills, TX 75135
>> dporritt at smu.edu
>>
>>
>
>

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