[Roadsters] SU air filter to carb gaskets /very rough idle

[J Sandhoff]

I second Paul's observation. Does Canada use oxygenates in the fuel
like the States (i.e. ethanol; refined corn down here). If so I
suspect your gas has gone sour.

I rebuilt my SU's last fall, then the car overwintered. I'm getting to
rebuild them again now 'cause they're totally gummed up with a putrid
green sticky mess. California gas is the worst.....

-- John
    John F Sandhoff   jsandhoff at gmail.com   Sacramento, CA


On Wed, Jun 28, 2017 at 2:40 PM, D Riedel via Datsun-roadsters
<datsun-roadsters at autox.team.net> wrote:
> I started my 2000 SU the other day after it's winter break and it ran so
> rough I thought it might bounce off the mounts.  As I peered around the carb
> area hoping to spot something odd (maybe a leaky hose causing a vacuum
> leak?), I noticed that I don't have gaskets between the air filter housing
> and the carbs.  Yikes.  First of all, I really wonder how this has been
> affecting things all along, but second I'm wondering how I might start
> correcting the rough idle.  Since the car has never had these gaskets since
> I've owned it, whatever is currently happening isn't exactly related (that
> is, it ran fairly smoothly last year).
>
> Any thoughts on 1) the missing gaskets, and 2) a process of elimination to
> smooth out the idle.
>
> Thanks everyone,
>
> --
> Dave Riedel
> '69 2000
> Victoria, BC
>
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