Paul
I have the mercury manometer type of carb balancer. I got it at a motorcycle
shop. I saw the twin gauges from Lockwood, they should work too. But I
think mine is much more accurate.
Your idea is not clear to me. A single needle could read plus or mines only
in a differential way. That is the information you need to make the
adjustment, but I can not figure out how to hook up the hoses to do that.
I made 6 mm (I think they were) fitting for hoses and screwed them into the
intake manifolds. Then took one end off the cross-over pipe and plugged each
connection with two plug of the right size. With the manometer duct taped in
the passenger seat, I ran the engine and tool the reading. I found that the
adjusting nuts on the bowden cables were very sensitive in the adjusting.
(one flat turn of the nut made a lot of difference)
I hope this helps. The carbs need to be checked now and then. It really
make a differance at less than full power settings.
Cliff Shaw
1041 Euclid ave.
Edmonds, WA 98020
425 776 5555
http://www.europaowners.org/WileE
----- Original Message -----
From: "Paul McAllister" <paul.mcallister@qia.net>
Subject: Europa-List: Carb balancing - Differential presure gauage ?
> <paul.mcallister@qia.net>
>
> Hi All,
>
> I was pondering this exercise over the weekend. I have the gauges
> supplied by Lockwood and I assume that this is what is recommended by
> Rotax. They don't work that great and several people have been having more
> success with manifold gauges from twin engine aircraft that have 2 needles
> sitting on top of each other.
>
> I was wondering if this could be done with a single gauge that has a
> center zero and maybe 5 ~ 10 psi either side. I haven't tired to locate
> such a gauge but I shouldn't think it would be too hard to find one.
>
> Anyone have any thought on the practicality of this idea.
>
> Paul
>
>
>
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