[Steam-engine] Woolf Valve

[Ken Majeski]

Well... On the Case or Mpls the height of the pedistal is changed by adding 
or removing shims under the reverse shaft mount. The pedistal is the correct 
height when there is little movement of the valve when the reverse lever is 
moved when the engine is on either dead center. Movement of the valve when 
on either center is called slip. Case says that if you can not get it low 
enough to take it to a machine shop and get some planed off. Of course 
bearing wear and removing main bearing shims will change the relationship of 
the pivot to the crank.

I don't know how the Huber is made... ( Thats a Good Thing )... Is the 
reverse shaft mount (pedistal) removeable or is just part of the engine 
frame...????

I would suggest the Case Steam Manual and the little Green Book ( Steam 
Engine Guide) for timing the valve with the Woolf Reverse.... Don't be 
suprised if you have to Tweek the valve rod to get the engine to run even 
Both ways even after following the directions precisely.... The Woolf 
reverse is not a perfect gear.... And will not do exactly the same thing in 
both directions.... This is also affected by the angularity of the 
connecting rod and that is unavoidable... Early valve gears seem to be the 
worst and the after 1911 one better...

Ken Majeski, Ellsworth Wis. Case Steam Engine,  Rumely Oilpulls H, F, & R. 
Website, Http://www.pressenter.com/~kmajeski/




>From: Andy glines <pioneersop96 at yahoo.com>
>Reply-To: Steam-engine mailing list 
><steam-engine at lists.stationary-engine.com>
>To: Steam <steam-engine at lists.stationary-engine.com>
>Subject: [Steam-engine] Woolf Valve
>Date: Tue, 17 May 2005 05:43:03 -0700 (PDT)
>
>I met a fellow at steam school who explained that the
>relationship between the crankshaft and the pivot on
>the slide for the wooden block.  Apparently moving the
>pivot up or down changes the timing.  I dont' see a
>provision for adjustment of the pivot on my Huber.
>When I repour the babbit I need to make sure that the
>crank is in proper alignment to the pivot.  How do I
>know when they are in the correct alignment?
>
>Andy Glines
>Evansville, IN
>
>
>
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