[Roadsters] More questions

RWM RWM at RWMann.com
Sat Jul 21 18:16:18 MDT 2012


This has been my experience as well -- ~800 RPM idle, warm

- Bob Mann, '68 2000 Solex-B-GBoone-MSD


On 7/21/2012 8:06 PM, Fred Davidson wrote:
> Hi Dana:
>
> A electronic distributor makes a lot of difference in helping set up the
> carbs and/or timing.  I first started out with Pertronix to replace points
> and found it made an obvious difference.  I later installed a "Gary Boone"
> distributor many years ago, when he started  he started making them and
> there was even more improvement.  As you know I am running B cam & Solex
> carbs for 20+ years and I can get my  Roadster to idle at 700 rpm but
> usually have it set around 900 or 1000. The electronic distributors sold now
> are equal or better than mine.
>
> Fred
>
> '69 Datsun 2000
>
>
> -----Original Message-----
> From: datsun-roadsters-bounces at autox.team.net
> [mailto:datsun-roadsters-bounces at autox.team.net] On Behalf Of Dana Scribner
> Sent: July-21-12 3:11 PM
> To: datsun roadsters; drone
> Subject: [Roadsters] More questions
>
> So I put a B cam in my SU roadster. I went to set the valve at clearance and
> looked in my Datsun manual and it said intake 0.012" exhaust 0.008" hot for
> some reason ( this is when I get into trouble) I looked in a Chilton manual
> and double check that info in another manual I have and they both said the
> reverse intake 0.008" exhaust 0.012" hot. I have been using the Datsun
> setting for years but I found this interesting. Now for the carb questions.
> I can get hem balanced good but I can only get them to idle at 1200-1500 rpm
> and it didn't matter if it was with a standard or B cam the problem is the
> same. When I try to bring the rpms down and I'm talking a turning the idle
> screws a very thin hair the rpms drop to 500 and keeps on going down until
> it stalls out. I am running points and the springs in the distributor are
> new recurved ones and the weights are correct. The timing is right on
> without the vacuum attached. I have sprayed starter fluid around the intake
> manifold to looking for leaks and didn't find any. What am I missing or
> should be looking for. Thanks for all the help Dana S
> ________________________________________


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