Author Topic: air powered hit and miss motor  (Read 464 times)

Offline Spanner

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air powered hit and miss motor
« on: March 06, 2019, 05:50:58 AM »
Hullo, can anyone tell me the length of sliding piston and exhaust valve spring  in the plans of air hit and miss motor by Brian Rupnow, have downloaded plans but has no specs on  this valve. thank you spanner

Offline b.lindsey

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Re: air powered hit and miss motor
« Reply #1 on: March 06, 2019, 01:45:21 PM »
I am sure Brian will be along shortly to answer your question. If not shoot him a PM.

Bill

Offline cheepo45

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Re: air powered hit and miss motor
« Reply #2 on: March 06, 2019, 01:47:21 PM »
The sliding valve is .400 long, and the spring is about 1 1/2" long.
I got my spring from the Harbor Freight spring assortment, but they do break after a day or so of running - so keep spares!
Good luck on your build. Mine was a great addition to my collection.
 Scott

Offline Brian Rupnow

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Re: air powered hit and miss motor
« Reply #3 on: March 06, 2019, 06:22:05 PM »
It has been 10 years since I built my Webster, and I no longer have the cad files. I do however, have the files which are available for download. If you can post the drawing you have questions about, I may be able to help you.---Brian