Simon,
The handwritten dimension on page 4, illustration 6.9 is 0.125" ->
0.219". It's 0.125" plus 3/32" as mention in the text.
I don't have a loose piston. For the washers to install in the piston,
the inside diameter ought to be smaller than the spring and the outside
diameter a bit smaller than the piston's inside diameter. Might have to
chamfer the OD to match the piston.
Cheers,
Bob Haskell
Austin Healey 3000 BN7/BT7 registrar
On 7/28/21 5:45 PM, Simon Lachlan via Healeys wrote:
>
> Hi,
>
> Attached is Del Border?s excellent work on, you guessed it, the
> overdrive. Doubtless, you?ve all got a copy.
>
> Page 4, illustration 6.9. Can anyone tell me what the second
> handwritten figure is? ie, ?Increase this dimension from 0.125? to ??????.
>
> And?..Page 5, paragraph starting, ?Now to get the pressure?? Does
> anyone have the precise dimensions of these washers? ie 1/16? thick by
> ????? wide?
>
> Lastly, has anyone tried these two mods?
>
> Page 6?s work the springs is interesting but OTT for my purposes!
>
> Thanks,
>
> Simon
>
>
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