[modeleng] Re: Soft Packing
- From: The Sheppard Residence <peter@xxxxxxxxxxxxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Fri, 18 Mar 2005 00:36:10 +0000
When I recently (well two years ago!) repacked Mouland's pistons with
soft packing I used a jubilee clip to compress the packing to get the
piston back in the cylinder. (The same way that you would use a piston
ring compressor on a car engine).
Cheers
Peter
John Pagett wrote:
> Gents,
> My problem is the soft packing of the pistons on gunmetal cylinders, not
> the glands for the piston rods.
>
> I can get the square packing in, it just doesn't seem to stop the steam
> from flowing past! One of our club members suggests packing it in really
> tight - i.e. an overlength piece of packing compressed lengthwise as it
> is pushed in to "fatten it up". I think this is better but how much over
> length should it be? pistons are 1" diameter with 1/8" x 1/8" groove.
>
> Should I be aiming for a completely steam tight seal?
>
> Thanks,
>
> John
>
> alan wrote:
>
>>For the square packing in cylinders, a diagonally cut with a shallow angle
>>works best.
>>
>
>
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