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CDToaster
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You can view the page at https://www.britishcarforum.com/bcf/content.php?168-S-U-Carburetor-Kick-Down-Adjustment
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Article: S.U. Carburetor Kick-Down Adjustment
- Thread starter CDToaster
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healeymanjim
Freshman Member
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I have two healeys and both have the carb linkage adjusted so that the throttle plate roller lies midway in the fork of the linkage. I had always understood this to be the correct position. the carb spring is supposed to pull the throttle plate closed, not the throttle linkage spring in the cockpit. I also have the "kickdown" problem along with other healeys in our club. I could be doing this wrong and would also like to know a better way.
trrdster2000
Luke Skywalker
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I think what CDToaster is trying to explain is the ends of the linkage. They have little balls that ride inside a housing that is spring loaded. They do go flat due to lack of lubrication and tend to stick. If you have four or more in your system, the potential for high idle or inconsistent idle is always there. Take the split pins out and clean the inside of the shaft after getting the spring and rider plug out. Lub with high heat grease and put it all back with free play in each joint. Replace those with flat spots. You will find all to be smoother and use less effort.
Good rainy day afternoon job, no not on the kitchen table.
Wayne
Good rainy day afternoon job, no not on the kitchen table.
Wayne
I am just completing a rebuild of my 67 TR4A. I had inspected the throttle linkage and found all had serious flat spots on pivot balls in joints.
After trying to find replacement pivot balls (unsuccessfully) I just ordered all new links which come with new ball joints.
Now installed the system work well with no binding or dead spots.
Carbs kick down without the need for a "momentarily depress" of the pedal.
Two questions...
1) Recommendations on grease for these Moly, Lithium, ?
2) Does anyone have a lead on a throttle pedal shaft assy and the bushings for a TR4A. My shaft has a grove cut into it by the bracket while the nylon end bearings were very worn. I am afraid this shaft is going to ultimately fail. Moss and others show the shaft and bushings but do not show then as available as new.
After trying to find replacement pivot balls (unsuccessfully) I just ordered all new links which come with new ball joints.
Now installed the system work well with no binding or dead spots.
Carbs kick down without the need for a "momentarily depress" of the pedal.
Two questions...
1) Recommendations on grease for these Moly, Lithium, ?
2) Does anyone have a lead on a throttle pedal shaft assy and the bushings for a TR4A. My shaft has a grove cut into it by the bracket while the nylon end bearings were very worn. I am afraid this shaft is going to ultimately fail. Moss and others show the shaft and bushings but do not show then as available as new.
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