Author Topic: Reconditioning a Stuart Simplex  (Read 13478 times)

Offline crueby

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Re: Reconditioning a Stuart Simplex
« Reply #30 on: November 01, 2024, 04:44:30 PM »
Ouch - those ports are a nasty!  They will open/close when the edges of the valve slider reaches the widest part of the opening, which is probably way off, explaining why it locks up since its likely sending air to both ends of the cylinder at once.


One thing you could do would be to make a thin valve plate with proper openings, but it requires sealing the plate to the port face thats there without leaking between the ports. Could be sealed with some gasket goop, if the plate was as large as the entire face so the studs on the steam chest help squeeze it down.


Other way would be to see if you can remake the slider to take into account the wide openings where the holes are in the slots. All depends what the diameter of the holes are, spacings, and what the eccentric travel is.

Offline redhouseluv

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Re: Reconditioning a Stuart Simplex
« Reply #31 on: November 01, 2024, 05:27:06 PM »
It's working!!!!

It wasn't the timing exactly, it was the amount of the port which is exposed either end of the stroke; a couple of turns on the valve rod and she burst into life!  ;D

https://youtube.com/shorts/mFfufzx2hNA?feature=share

Best regards

Sanjay

Offline redhouseluv

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Re: Reconditioning a Stuart Simplex
« Reply #32 on: November 01, 2024, 05:30:14 PM »
Ouch - those ports are a nasty!  They will open/close when the edges of the valve slider reaches the widest part of the opening, which is probably way off, explaining why it locks up since its likely sending air to both ends of the cylinder at once.

I think that was the problem and adjusting the valve rod must have corrected that, somehow??
« Last Edit: November 01, 2024, 05:33:17 PM by redhouseluv »
Best regards

Sanjay

Offline crueby

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Re: Reconditioning a Stuart Simplex
« Reply #33 on: November 01, 2024, 05:31:58 PM »
Wonderful!!  :whoohoo:

Offline Admiral_dk

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Re: Reconditioning a Stuart Simplex
« Reply #34 on: November 01, 2024, 05:44:35 PM »
Congratulations - you got a Runner and a fine looking one too  :ThumbsUp:

Per    :cheers:

Offline Michael S.

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Re: Reconditioning a Stuart Simplex
« Reply #35 on: November 01, 2024, 06:16:37 PM »
A great success.  I congratulate.
The wooden base also looks very nice.

Michael

Offline Jasonb

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Re: Reconditioning a Stuart Simplex
« Reply #36 on: November 01, 2024, 06:29:18 PM »
Good to see it back to life.

Offline redhouseluv

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Re: Reconditioning a Stuart Simplex
« Reply #37 on: November 01, 2024, 06:41:56 PM »
Thank you all your kind comments; they mean a great deal and are very encouraging ......... now onto a new project!!!
Best regards

Sanjay

 

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