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

[RWM]

John and Dave,

I use 'Stabil' fuel conditioner when over-wintering the car and have 
never had a fuel-related issue.

Did have a sticking carb one spring, but that turned out to be a sunk 
float. R&R and good to go again.

- Bob Mann, '68 2000 Solex


On 6/29/2017 5:08 AM, J Sandhoff via Datsun-roadsters wrote:
> 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