The cable moves very freely..
The only thought I have is wether some other carburetter problem might cause
this...
Do you have any idea what the effect of a jammed carb piston would be?
Cheers
tim
"Bowen, Patrick A RP2" wrote:
> Tim, my answer would be you have a frayed cable, but you say it is new. I
> would take a second look at it anyhow.
>
> Patrick Bowen
>
> -----Original Message-----
> From: T. .R. Dafforn [mailto:td214@cam.ac.uk]
> Sent: Monday, April 17, 2000 5:44 AM
> To: spitfires
> Subject: Throttle control problems
>
> Hi Listers,
> Finally after 2 1/2 years my car is legal again...
> However I have just picked up a problem...
> While driving back from the test station the throttle seems to stick
> open causing the car to idle at 3K rpm...
> Quick blip on the throttle and it dropped back to idle at 750 rpm...
> Then it happened again 5K rpm...
> blip and back down..
> Got back and had a look at the throttle linkages, they seem fine
> although the car has never had the return spring which attaches to the
> header are these required? It has always relied on the return springs on
> the carb...
> Also noticed that the rear float bowl was leaking where the tube from
> the jet screws in....
> Does any one have any ideas whether the problem is mixture or sticking
> throttle cable (which btw is brand new!!)
> hope some one can help
> cheers
> Tim
> PS the car is a 1500 twin SU carb...
>
> --
> Tim Dafforn
> Structural Medicine
> Department of Haematology
> CIMR
> University of Cambridge
> Wellcome-MRC Building (Level6)
> Hills Road
> Cambridge
> CB2 2XY
>
> Tel. (01223) 336829
> Fax. (01223) 336827
> http://smokeroom.cimr.cam.ac.uk/
--
Tim Dafforn
Structural Medicine
Department of Haematology
CIMR
University of Cambridge
Wellcome-MRC Building (Level6)
Hills Road
Cambridge
CB2 2XY
Tel. (01223) 336829
Fax. (01223) 336827
http://smokeroom.cimr.cam.ac.uk/
|