[SEL] The McVickerish Engine

Steve Royster steve_royster at hotmail.com
Mon Mar 22 17:24:02 PDT 2010


Hi Elden, I believe this is only a small port to relieve the pressure from the lower exhaust valve piston, I think the small piston  uncovers  the port in the valve cage at the end of it's downward travel and this small port lets the small amount of pressure and  unburned fuel and oil blow out the pipe to the man exhaust pipe. If you hold your finger over the port when it fires there is very little pressure coming from it.  I have to take the cage off and replace the bolts with studs soon and I'll take pics for you.   Steve
 
> From: edurand at mchsi.com
> To: sel at lists.stationary-engine.com
> Date: Mon, 22 Mar 2010 19:15:45 -0500
> Subject: Re: [SEL] The McVickerish Engine
> 
> Steve:
> 
> I was looking at the photos again. Is the pipe with the union on it that goes to the exhaust port an actual ported exhaust setup? If so, the exhaust valve actuating port must be ahead of the exhaust relief port.
> 
> Disorganized (disordered?) minds need to know. :-)
> 
> Take care - Elden
> edurand at mchsi.com
> http://www.oldengine.org/members/durand 
> 
> 
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