Modifying Throttle Pedal Assembly

[Carbuilder]

This is one of those not leaving (almost) good enough alone projects. I have the dash area all apart and removed the throttle pedal assembly. It works well enough, but the idea of the steel shaft turning in a metal plate with a hole drilled through it just didn't seem quite good enough. So...

The various pieces:



The shaft rotates in the hole; metal on metal:



I bored the holes to take a flanged bearing with an OD of 7/8". The ID is 3/8" which is the shaft size. Didn't leave a lot of material around the holes, but with the bearings installed with Loctite it would be strong enough:



Bearings installed:



Reassembled and perfectly smooth rotating action with no play:



Rick

 

[michael-king]

Nice work... @sandy had posted plans of a bushed pedal a while back , seems a nice upgrade for the tactile parts of driving.

 

[Hoghead]

I built Sandy's assembly using rod ends, and goes well in a modified car - this one using a bearing is stealthy

 

[sandy]

This is one of those not leaving (almost) good enough alone projects. I have the dash area all apart and removed the throttle pedal assembly. It works well enough, but the idea of the steel shaft turning in a metal plate with a hole drilled through it just didn't seem quite good enough. So...

The various pieces:

View attachment 18884

The shaft rotates in the hole; metal on metal:

View attachment 18885

I bored the holes to take a flanged bearing with an OD of 7/8". The ID is 3/8" which is the shaft size. Didn't leave a lot of material around the holes, but with the bearings installed with Loctite it would be strong enough:

View attachment 18886

Bearings installed:

View attachment 18887

Reassembled and perfect smooth rotating action with no play:

View attachment 18888

Rick

Nice work. Anything to make it smoother. Never thought of the flanged bearings, good idea!

Sandy

 

[at the beach]

Out of curiosity, do you have any special plans for dealing with the vertical piece that attaches to the carb rod/cable?
Buck

 

[sandy]

Out of curiosity, do you have any special plans for dealing with the vertical piece that attaches to the carb rod/cable?
Buck

Robert made a new one that uses a collar clamp welded to a new rod, really looks good. I also made one out of an aluminum arm with a piece of metal to extend it a bit, I think the aluminum arm was from Speedway. Anything has to be better than the stock one. Let me see if I can dig up a picture of what I did, but if you want to make one better start like Roberts with a steel split collar TIG welded to an arm.

 

[sandy]

Buck - Look at my website for some pics here for the hack that I did. I don't have a pic of Robert's, but I can get one in the next day or so depending on the Super Storm

https://gtsparkplugs.com/sunbeam-tiger-throttle-linkage.html

Some shots of the hacked linkage arm I got from Speedway. I am going to use a Lokar cable pull for my car if that matters.

Sandy

 

[Carbuilder]

Out of curiosity, do you have any special plans for dealing with the vertical piece that attaches to the carb rod/cable?
Buck

Don't have a picture of it right now, but mine has one of those ball things on the throttle pedal vertical piece and the mating snap part on the rod. Probably not a great description but I'll take a picture when I'm in the garage and the lift is down. Don't know what the stock setup is/was.