Accelerator sticking

[DeVilleChris]

Accelerator pedal started to stick yesterday and I'm not really sure what to check? Anyone experienced this?

Thanks
Chris

[Bar Vitelli]

The best fix I've seen is to take the pedal out and grease it - works a treat afterwards.

[DeVilleChris]

Ok thanks, had a feeling it might be full of c@%p

[Rusty's Uncle]

The accelerator pedal assembly is a unit item and cannot be dismantled. They tend to seize up when cars have not been in use for a while. A good squirt of WD40 both ends of the tube may free up the rod that runs in nylon bushes. Also you could drill a small hole in the top of the tube and drop some oil in. This is assuming it is the pedal and not the cable.

[DeVilleChris]

Still not solved this, I think it is muck in the pedal thingamajig.

Not sure where to go from here

[Bar Vitelli]

Rusty is right about the WD40 thing, I had that done on my 500, basically once you've done the WD40 you also need to push the pedal up and down a few hundred times by hand until it settles back in.  The grease option works best though, the chaps did it on my red car and it works a treat, before that I had to take my shoe off and use my toes to pull it back into position!   

[Pete126]

Sorry to disagree with spraying with WD40 into the ends, I did this and it makes things worse I ended up driving the car with a shoelace tied to the accelerator pedal to pull it back when stopping evidently there's an chemical in WD40 that swells the nylon bushes, I ended up drilling 2 small holes in the outer bar and dribbling 3-1 oil in which sorted out the problem

[Bar Vitelli]

Yes, that's what my chap did, Pete, although the way he described it there were holes in there already, maybe I misunderstood. Your story about the shoelace made me chuckle though, sounds like one of Rusty's tales! 

[baron_matt]

Hi all

Just been reading this thread, I wonder if there is a better way of sorting this out?

What about drilling the outer tube and fitting a grease nipple?

Surprised no one's considered making up a repair kit for these. Has anyone got a picture of the assembly?

Is it the same on the RHD FIAT 500 and BIS as well?

Cheers

Matt

[baron_matt]

Managed to obtain one of these 126 RHD throttle pedals in a seized state and managed to sort it out in the following way.

With the pedal out of the car, place it vertically in a vice with the pedal end downwards.

Remove Circlip and prize out nylon bush from cable end.

Drip thin oil down tube and leave for a hour.

With the vice gripping the outer casing securely (but no so tight that you squash it flat, tap the end of the rod smartly with a hammer.

You should be able to drip more oil down the tube and eventually get the rod to move inside the casing all the way to the bottom.

Wire brush all the loose scale away on the rod at the pedal end turn the whole thing round in the vice so that the pedal end is now at the top and drip more oil in. Tab rod back down.

Do this a few times and the rod will soon be free enough to enable you to twist it in its casing and you can exercise it. If you use plenty of oil the rusty flakes that was binding it up will come out as a rusty paste which you can wipe off. Eventually you end up with a freely moving rod. You can then refit the bush and circlip and refit to the car.

Ideally if you have it in the vice you could drill a hole in the outer casing in the middle as an oil hole or fit a small grease nipple to enable you to pack the tube with grease.

Hope this helps.