[modeleng] Re: Worn bushes

Tinfoil, ooh, now that is a bodge!  I will of course get round to making
new bushes, just not a bit of time in the foreseeable future.

Thanks for the admonitions,
Bede

On 6/21/2008, "Barrie Purslow" <bpduo@xxxxxxxxxxxxx> wrote:

>Bede,
>
>You seem intent on entering Bodge City here!
>
>One of the reasons for fitting bushes is to make it relatively easy to solve=
=20
>this problem - by replacing them. However if you really don't want to do=20
>that I would suggest wrapping tinfoil around the crank pins fixed in place=
=20
>with superglue or Loctite. Although, since the holes in the busfes are=20
>almost certainly out of round, I don't really recommend this.
>
>For sure you will have the great locomotive designers turning in their=20
>graves!!
>
>Regards,
>
>Barrie
>Warrington UK
>
>
>----- Original Message -----=20
>From: <bede@xxxxxxx>
>To: <modeleng@xxxxxxxxxxxxx>
>Sent: Saturday, June 21, 2008 7:01 AM
>Subject: [modeleng] Worn bushes
>
>
>> My gauge O meths-fired 4-4-0 has worn the bronze bushes in both big ends
>> to cause enough slop to cause the connected wheels to sometimes not make
>> the full revolution and wind up with the connecting rods cocked up at a
>> 30 degree angle, with the cranks pointing off in different directions.
>> Not pretty!  It's a semi-scale model with a loco-style boiler, heading
>> towards the Eddie Cooke end of O gauge/scale live steam, but not of his
>> caliber.
>>
>> Short of replacing the bushes, how might I be able to lessen the slop
>> where the crank pins pass through the bushes?  One thought I had was to
>> "tin" the crank with soft solder where it passes through the big end.=3D20
>> The amount of slop isn't much, a few tenths of a mil.  Does anyone have
>> any experience with doing this?  How can I get an even layer of solder
>> on the pin?  Should I try tinning the inside of the bush?
>>
>> Not sure if any of this makes sense,
>> Thanks for input,
>> Bede in stormy Brooklyn.
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>>=20
>
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