Well, it appears that I have a leak... between the intake manifold and the
head. While running, I sprayed a shot of starter fluid (ether) on the front
half and the engine revved up quite a bit. I sprayed the rear section and
got the same result. I guess the used manifold gasket wasn't thick enough to
reuse. I have another used gasket, but figure it will produce the same results.
IF (big if) the local auto parts stores have the correct gasket
(NAPA, Autozone) I will replace it with a new one. IF they don't have it, I'll
order a replacement from Nigel @ Spitbits, and I'll use Form-A-Gasket on it for
this weekend's drive to the SIR Brit show in Newburgh Indiana.
Thanks to everyone for your help and suggestions. Hopefully sealing that gap
will correct the problem.
Now, one more question. I ran new emissions lines over the pancake air filters.
You can see pictures at http://www.wvbscc.org/baugues/carb.html
I also ran the gas line from the back carb to the front carb using copper
tubing. Is it OK to use copper tubing for the fuel supply line, or should I use
something line a stainless steel brakeline?
Thanks again,
Howard Baugues
76 & 77 Spits
79 TR7 DHC
John Kipping wrote:
> Howard,
> Are both pistons falling back down to the bridge? If one doesn't it has the
>same effect as a weak mixture, also note the jets are usually set far further
>down than for a Stromberg and it could just be a very weak mixture.
> John Kipping
> ----- Original Message -----
> From: Howard Baugues
> To: nass@yahoogroups.com
> Sent: Monday, September 09, 2002 12:39 PM
> Subject: Re: >>NASS Adjusting SU carbs
>
> Thanks John,
> I'll check there again. I have a 4 to 1 header on the engine which gave me
> more access to the underneath manifold bolts. They appeared tight, but I
> will check again.
>
> I took it out for a drive, and as long as I kept revving it while stopped,
> it was OK. If I let off it would idle down and die. I had pretty fair
> acceleration up to 75 mph before backing off.
>
> I have some pictures of the carbs with the emission lines attached posted
> here.
> http://www.wvbscc.org/baugues/carb.html
>
> Thanks for the suggestion.
>
> Howard
> ----- Original Message -----
> From: "John Kipping" <johnkipping@inet.net.nz>
> To: <nass@yahoogroups.com>
> Sent: Sunday, September 08, 2002 6:45 PM
> Subject: Re: >>NASS Adjusting SU carbs
>
> > Howard,
> > Sounds like an air leak to me. The usual cause is a problem with those two
> manifold clamps underneath which are very difficult to get at with the twin
> carbs.
> > John Kipping
> > ----- Original Message -----
> > From: Howard Baugues
> > To: nass@yahoogroups.com
> > Sent: Monday, September 09, 2002 5:42 AM
> > Subject: >>NASS Adjusting SU carbs
> >
> >
> > Calling on the list wisdom again.
> > I have my 1.5" SU carbs installed on my 76 Spit. It started, but would
> only idle high 2500+rpm with the choke out or the pedal pressed down. It
> would not idle down and stay running. If I let off or let the choke back in,
> it would die.
> >
> > Any suggestions?
> >
> > Thanks in advance,
> > Howard
> >
> > [Non-text portions of this message have been removed]
> >
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