W-clip twin/triple carb lnkages
Posted: Mon Aug 01, 2011 10:32 am
Almost there with the carb document. I've spent some time this week getting my head around twin and triple carb linkages, and have some good sketches and info for the document .
One thing that has me buggered though is the aftermarket "W-clip" linkages:
From what I can nut out, the cad-plated steel rod is used to connect (marry) the throttle shafts on two carburettors. The black W-clips clamp onto each end of the rod by tightening the bolt. The cad-plated arm clamps onto the steel rod and is driven by either a cable or the original "swinging bar" type linkage.
What I can't understand is how the W-clips join the rod onto the throttle shafts. On the rear carb, I can envisage the W-clip being put onto the throttle shaft under the pump lever nut (it looks like the W-clips have a D-shaped hole to fit the throttle shaft). But on the front carb, there is no nut on the end of the throttle lever - the throttle shaft is peined over on a standard B-model Stromberg. Some questions:
a) I understand that some carbs have a nut on the front carb throttle lever that a stubby shaft screws onto. Is this the HR/HD X2 carbs (they have different throttle shafts to all other Holden Strombergs going by the Bendix part numbers)?
b) How are the W-clips attached to front carbs if the throttle shaft doesn't have the nut mentioned in a) above? Do you have to remove the throttle plate, pull the shaft, slip the W-clip on then reassemble the throttle shaft/plate?
Any help appreciated.
Cheers,
Harv.
One thing that has me buggered though is the aftermarket "W-clip" linkages:
From what I can nut out, the cad-plated steel rod is used to connect (marry) the throttle shafts on two carburettors. The black W-clips clamp onto each end of the rod by tightening the bolt. The cad-plated arm clamps onto the steel rod and is driven by either a cable or the original "swinging bar" type linkage.
What I can't understand is how the W-clips join the rod onto the throttle shafts. On the rear carb, I can envisage the W-clip being put onto the throttle shaft under the pump lever nut (it looks like the W-clips have a D-shaped hole to fit the throttle shaft). But on the front carb, there is no nut on the end of the throttle lever - the throttle shaft is peined over on a standard B-model Stromberg. Some questions:
a) I understand that some carbs have a nut on the front carb throttle lever that a stubby shaft screws onto. Is this the HR/HD X2 carbs (they have different throttle shafts to all other Holden Strombergs going by the Bendix part numbers)?
b) How are the W-clips attached to front carbs if the throttle shaft doesn't have the nut mentioned in a) above? Do you have to remove the throttle plate, pull the shaft, slip the W-clip on then reassemble the throttle shaft/plate?
Any help appreciated.
Cheers,
Harv.