Hi Bob, Thanks for advice.
I am pretty well used to setting up these win SU carbs by "feel", but
bought the Colortune to double check. Wasn't too impressed with it,
but havn't tried it in a darkened room yet!
Just a bit worried on my newly re-built 1275 as it has a modified Cam
with non-standard timing - not confident that I have it right yet so
want to err on the side of rich fuel to lessen the chance of getting
holy pistons!
Did you mean to send an attatchment? Havn't opened it just in case!
<gg>
]
Guy
----- Original Message -----
From "Robert E. Shlafer" <PilotRob at webtv.net>
To: "Guy Weller" <guy@weller-lakes.freeserve.co.uk>
Cc: <spridgets@autox.team.net>
Sent: 24 June 2001 08:30
Subject: Re: Fuel Guage Calibration
> Guy-
> Sticking float in tank I would think from
> sound of it.
>
> At least, this is what happened to me
> under same circumstances.
>
> Pulled tank and while I had it out, completely cleaned it out and
> treated same with "coating" to prevent further
> corrosion (normal in tank over time,of
> course), installed new float, reassembled
> and worked fine.
>
> Caught your prior mail on Colortune.
> I also found this difficult to use obtaining
> best result in pretty "darkened" garage
> so I could "see".
>
> Normally, cylinders 2&3 run the hottest
> (no water jacket between them) so these
> are the cylinders to concern yourself with.
>
> I always rechecked mixture by the
> standard method of hooking up an
> outside tach. and lifting each piston
> just a smidgeon to get a slight, temporary
> increase in rpm before engine settled back to rpm it was at before I
> lifted the
> piston. On worn carbs., you may not get
> the temporary rise in rpm, it will just sort
> of stay at the same speed. In this case
> lean out until rpm just falls as you lift pin,
> then richen until idle doesn't fall off at all
> and you are 'there".
>
> Got so good at doing it normal way that
> I forgot all about using the color tune at
> all!
>
> Others who use this should be up in a
> few hours and I am sure they will be their
> two cents in!
>
> Hope you are having nice weaher "over
> there". Have a good day off! :)
>
>
>
>
> Capt. Bob
> ' 61:{)
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