[modeleng] Re: Valve Timing on simplex
- From: Allen Messer <al_messer@xxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Mon, 21 Nov 2005 08:30:28 -0800 (PST)
Keith, please understand up front that I am replying
out of ignorance as MY Simplex is still a sheaf of
blueprints and hopes for the future.
I took a quick look at the prints, however, and it
seems that the Left-hand piston is half-way through a
stroke, and the Right-hand one ought to be 90 degrees
ahead or behind. I would therefore assume that the
valve is also at Dead center in the valve chest.
If you set the return cranks as per the blueprints,
and removed the valve chest covers and observd the
action of the valves, will you not be able to
determine the proper location of the return crank
before you tighten down the pinch screws?
Just a thought out of my ignorance and I will be very
glad to hear how you make out.
Al Messer
--- Gmx22@xxxxxxx wrote:
> Before I start, thank you all for your help last
> time. I have had a couple
> of good weeks in the workshop and am just about
> ready to set the valve gear on
> my simplex. Thinking to myself i will have this
> running on air tonight (why
> does it take 20 times longer than you think) Anyway
> have looked at plans for
> about two days and i just Havant a clue where to
> start. I have had a look at a
> martin evens book but sadly it tells you how to
> design walschaerts gear but
> not really how to set it up. So
> 1 Where should the return crank be set in relation
> to crank pin?
> 2 What is the procedure for setting the valves?
> If this is going to be to complex to write on here
> could you point me in the
> direction of a book, maybe the good dummies guide to
> valve setting.
> I really would like to see my handiwork poor as it
> is running before xmas
> All the best
> Keith
>
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