Russ,
The float lever should contact the float needle at 15mm measured from the
gasket surface.
I use a Colortune by Gunsen to get an initial mixture. Very helpful item but
no longer cheap. The alternative is to adjust the mixture nuts until you get
the highest RPM reading or vacuum reading. Another alternative is to use
those little plungers to raise the piston up. If it's too rich the idle
speed will rise and stay that way; if it's too lean the engine will die; if
it's about right the engine will stumble then resume almost the same speed
but will not die.
As for the rubber, MSC Industrial Supply sells the tubing under the name
Vitube. If you want, I have to go there and I'll pick you up a foot.
Mike
----- Original Message -----
From: <VulForge@aol.com>
To: <datsun-roadsters@autox.team.net>
Sent: Tuesday, March 20, 2001 1:47 PM
Subject: SU carbs
> List:
> I just rebuilt the carbs on my 67 1600, and I could use some help
on
> getting them adjusted properly. I used Stan's rebuild kit, which comes
with
> Grose jets. I had to move the float level substantialy and I still don't
> seem to have it right. I am geting overflow and flooding. Anyone have
any
> suggestion or measurement for setting the floats? Also, the front float
> seems to want to turn in the bowl. It doesn't look like the little ears
on
> the top are long enough to prevent this.
> Stan sent along some straight tubing to replace the fuel pipes from
> the bowl to the jet, but without the factory forming they kinked where
they
> made the bend. I solved this by slipping a very light extension spring
over
> the tubing. Seems to work fine.
> Anybody have a good procedure for setting the mixture? I am
starting
> rich and leaning it out and checking plug color, but there must be an
easier
> way. The fractured Japanese in the manual is nearly incomprehensible.
>
> Thanks in advance!
> Russ
> 67 1600
> Kansas City
|