jedwards
24th March 2023, 06:34 PM
I decided to overhaul the Carburettor from  my 1953 S1 80". 
Simple right?
Well I've done something to the accelerator pump, (no idea what) and I'm completely at loss of what I've done wrong.
The Accelerator pump body with the diaphragms and internal springs operates the pump by pulling the Accelerator pump's "arm" inwards towards the carburettor body (Image 2) . The internal springs push it back out again when at rest. (image 1)
HOWEVER, somehow, I have it so that the accelerator acts to rotate the butterfly outwards, away from the carburettor body. The cam on the throttle shaft rotates to PUSH the Accelerator pump's activation outwards, which just compresss the spring as the accelerator arm is hard against its stop. (image 3)
What on Earth have I done wrong?
Many thanks for any advice and help
regards
Jeff in Perth, Western Australia
Simple right?
Well I've done something to the accelerator pump, (no idea what) and I'm completely at loss of what I've done wrong.
The Accelerator pump body with the diaphragms and internal springs operates the pump by pulling the Accelerator pump's "arm" inwards towards the carburettor body (Image 2) . The internal springs push it back out again when at rest. (image 1)
HOWEVER, somehow, I have it so that the accelerator acts to rotate the butterfly outwards, away from the carburettor body. The cam on the throttle shaft rotates to PUSH the Accelerator pump's activation outwards, which just compresss the spring as the accelerator arm is hard against its stop. (image 3)
What on Earth have I done wrong?
Many thanks for any advice and help
regards
Jeff in Perth, Western Australia