[SEL] Old style Alamo question (not Blue line)

[edd payne]

Hi Curt.I just went out and checked my Alamo and it is opening the valve at
about 15Deg before bottom and closing rite on top.If I try to get it earlier
and later  the valve rides and lets go comp as it goes past top on the
firing stroke.My engine runs good at this setting.
EDD PAYNE
PO BOX 364 GULGONG
New South Wales  AUSTRALIA 2852
0263742387
edsingns at winsoft.net.au
----- Original Message -----
From: "Curt" <curt at imc-group.com>
To: "SEL" <sel at lists.stationary-engine.com>; "SEL (Oldengine.org)"
<stationary-engine at oldengine.org>
Sent: Tuesday, November 08, 2005 4:27
Subject: [SEL] Old style Alamo question (not Blue line)


> During the summer I posted some pictures of a tray cooled early Alamo
> that followed me home. I've been putting it together over the last few
> months. There was one missing part and I made a pattern of the latch out
> arm, had it cast, and machined it. The latch out works well now.
>
> Now I am working on timing the engine, getting the exhaust valve opening
> and closing at the right time, and the ignitor tripping at the right time.
>
> This is a walking beam style engine. I have adjusted the button on the
> bottom of the exhaust valve so that the exhaust valve closes right at
> TDC or just the slightest bit past TDC. That's as it should be. But as I
> continue to roll it thru the valve doesn't open until fully at BTC or
> even slightly PAST BTC on the exhaust cycle.
>
> So far all the old gas engines I've worked on open the exhaust valve
> roughly 2/3's the way thru the power stroke. They all close the exhaust
> valve at TDC or 5° past TDC.
>
> Could some of you fellows with old style Alamo's have a look at your
> engines and share what you see on your engines? Maybe this is the way
> Alamo designed it???
>
> Curt Holland
> Scratchin' my head in Gastonia, NC
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