Richard
The age of the carbs I looked at is unknown, although they are late smog SUs
with the little spring & pin in the butterfly. I thought 69-74 had these,
but I guess I was wrong. Just be thankfull you are not trying to figure out
where all the hoses go on a 79 1500. Bought one one time with all the parts
in a box, before computers and lists and such. Had to put it together based
on the worn out decal under the hood. Now that was loads of fun!
David Riker
74 Midget (with weber)
63 Falcon
----- Original Message -----
From: Richard Shipman <mbelect@mindspring.com>
To: David Riker <davidr@sunset.net>
Sent: Friday, August 06, 1999 5:47 AM
Subject: Re: Timing the 1275 ? (vac. advance with a sidedraft)
> Hi David,
>
> I have some earlier SU carbs with the vacuum pick-up where you suggest,
but
> on both of my '74 Midgets the SU's have absolutely *no* vacuum advance
> pick-off points. (I've rebuilt the carbs and therefore have had them
> completely apart so I would have seen the pick-up point wherever it might
> have been). The distributor vacuum advance is connected to a nipple
threaded
> into the top of the intake manifold directly in-line with the front carb.
>
>
> At 10:16 PM 8/5/99 -0700, you wrote:
> >Richard:
> >Actually, the correct place on the SU for the vacuum advance is a
throttle
> >vacuum port on the carb. If you are drawing manifold vacuum you have the
> >hose hooked up in the wrong place. On the SU, the vacuum provision is
> >exactly like what we've been trying to duplicate on the weber.
> >
> >David
> >74 Midget
> >63 Falcon
> >
>
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