I have hunted, and read the Haynes, but haven't found how to get the Summer/winter flap inside the aircleaner spout to stay in the summer position.
Mk1 Uno 70s and Mk1 Uno 60s
Mk1 Uno 70s and Mk1 Uno 60s
Technical Air cleaner Summer/winter setting
- Thread starter rawill
- Start date
Currently reading:
Technical Air cleaner Summer/winter setting
Duct tape! 
(no idea, sorry )
(no idea, sorry
)
OP
OP
LOL. Thanks. I think, throw it away.
OP
OP
It's thermostatic - automatic - or was, once!
A small brass capsule is intended to expand and close off the hot air intake by the crude plastic linkage. I don't think these ever worked very well. Ten years ago I could only find one that worked, out of a collection of five.
What I would suggest is to remove the dysfunctional parts and fit a screw to the flap pivot, so you can set the flap position to 'winter' for the present conditions. You might also need to check/replace that relatively-expensive aluminium duct pipe from the exhaust tin shield. It is worthwhile in the winter - helps prevent carburettor icing and generally enhances the carburettor operation during the warm-up phase.
-Alex
A small brass capsule is intended to expand and close off the hot air intake by the crude plastic linkage. I don't think these ever worked very well. Ten years ago I could only find one that worked, out of a collection of five.
What I would suggest is to remove the dysfunctional parts and fit a screw to the flap pivot, so you can set the flap position to 'winter' for the present conditions. You might also need to check/replace that relatively-expensive aluminium duct pipe from the exhaust tin shield. It is worthwhile in the winter - helps prevent carburettor icing and generally enhances the carburettor operation during the warm-up phase.
-Alex
OP
OP
Aha, funny you should say that. I pulled one apart, and was thinking it must be something like this. Then I read your post. Is this an example of where Haynes is not up do date? I read about a manual adjuster, mechanism but that must be for another type, or earlier! But how much earlier can you get from 84.
The Uno 45 (903 cc version) has a similar looking round air filter housing.
on this version, you remove the cover, turn it 180 degrees and put it back, to switch between summer and winter
Both my 903cc Unos had it, one was 1986, the other 1988
on this version, you remove the cover, turn it 180 degrees and put it back, to switch between summer and winter
Both my 903cc Unos had it, one was 1986, the other 1988
don't break the flap or leave it open in the winter...my first fire engine would freeze the carb in winter and slowly come to a halt,,,after 20 mins .tiny engine heat would melt ice in carb and away we would go!!!took me a long while to suss that!
