Throttle shaft bushes

[ushes]

Hi,

New high torque starter fitted this morning (after dismantling the whole interior to get access) so next job is to upgrade the throttle linkage. Has anyone any tips for replacing the 3 plastic bushes on the throttle shaft for a CP series?

 

I've tried best part of this morning to replace the centre one without success.  In hindsight the original probably would have been OK but I destroyed it during removal.  The new PTFE one are almost inflexible, the centre bush has to be split to allow fitting and I'm having a b**t*** of a job trying to install it.  I've tried soaking in hot water, washing up liquid the lot.

 

 

Regard

Steve

[Richard Crawley]

Hi Steve

It’s quite a few years ago now since I did mine & it maybe that I had OE bushes but I literally boiled mine for several minutes to make them pliable enough to fit, as quickly as you can manage! At the end of the day a little, focused brute force is all that can really prevail & if you still can’t fit them, look for alternative bushes & try again.

 

I had my linkage replated & installed new bushes all through. I remember having to split the centre bush on the throttle linkage but it then went in quiet easily, as did the others. The accelerator pedal shaft bulkhead bush was another matter though & after being very gentle for about half an hour I got bored & very brutal, on the basis that it either went in or got destroyed in the process; I’m still not sure how it went in but it did, finally!

[jean]

When my 6 was still fitted with the Lucas injection I had made some bushes out of broze and copper washers. On the continent we use bronze rings on press fittings for small copper water pipes. On the linkage the rings play the role of bronze bearings  and they exactly fit the spindle.

To fill the bracket holes I used a tiny piece of copper pipe. All cut to size and soldered together gave me perfect broze bearings.

The centre pieces will have to be split for fitting, but this also worked well.

The throttle pedal through bulkhead is more tricky exercise.

Here I applied a triangular cut to one side of the bush, like cutting out a piece of a cake. At the moment the nylon is softening you can push them in place through rotation, you start with the opening and it will work like a screw. Not easy, but it worked for me   As far as I can see this procedure can also be applied for the linkage

Jean

[ushes]

Thanks for the replies.  A bit of brute force after softening up the bushes with hot water and they went in a treat, even the centre bush wasn't too difficult.  Sometimes it pay to just shut the garage door and come back later in a better frame of mind.

The throttle bush in the bulkhead... mmm.  I need to sort that out on my CR series car too.  If I remember correctly on the CP series car I just slid a piece of heater hose over it, internal and external diameter was a nice tight fit, throttle operation is pretty smooth, I just squirt a bit of WD40 over it when I remember.  Not very scientific I grant you but it's still doing the job and if it does happen to go, its a quick and simple fix for coppers.

 

Thanks again.

Steve

[Martti Ojanen]

I have for sale PDI underslung throttle linkage kit I bought four years ago. See PDI web page.

I sell it for half of the original price.

:blues: Martti

[Guest Frans C.]

ssssssss

[Guest Frans C.]

Steve,

[Guest Frans C.]

Sorry Steve for this chaos of messages;but i'm new to this list and have a lot to lern.

The image shows a verry cheap "special tool" to place bushes into the firewall of TR's.

 

Cheers,

 

Frans

[Guest harry dent]

Frans,bloody brilliant.I have struggled with this part for so long now and that tip is so,so, good.When my next project needs this doing I will use this simple device.

Thankyou,

Harry.