STICKY THROTTLE.

[meatball]

The 1st link works for me....dunno bout the problem though...sorry

[robin]

I am assuming that if you operate the pedal in the car in neutral then sometimes it holds the revs and sometimes it doesn't.

What happens if you go into the engine bay and operate the throttle quadrant by hand? Does it still stick sometimes? If it does then the problem won't be at the pedal end.

I agree that the pedal-to-linkage bracket looks knackered - they are originally a small brass bracket that is riveted to the pedal IIRC; the brass fatigues along the line of the rivet and you usually end up with the bracket failing completely and no operation of the linkage from the pedal. Given that the return spring feeds into the other side of the same bracket, I guess it's possible that the return spring is operating on the bracket but the bracket isn't pulling the pedal in.

Simple test - remove the linkage from the pedal and operate just the linkage by hand and see what happens.

Welcome to the world of owning an elise

Cheers,
Robin

[foz01]

The engine end seems fine, now the next question, how easy/time consuming is replacing everything under there- looks a total PITA

[Shug]

The engine end seems fine, now the next question, how easy/time consuming is replacing everything under there- looks a total PITA

At the pedal end? Two bolts, ten minutes, piece of piss. (and I actually did do it in ten minutes, I had a cup of coffee waiting and it was still hot )

[Rich H]

10 mins to do and an hour to recover from the Lotarse position....

As Shug says it is quick to do. Undo the bolts and drag the lot out so you can get a better look.

When it sticks can you free it by lifting the pedal?

[foz01]

Yes the lotarse position, hence the heavy breathing in the vid

Which parts do i need to buy them folks?

much appreciated btw

[robin]

It doesn't seem to me as though you have diagnosed the fault.

You have eliminated the engine end, but you haven't worked out what's wrong at the pedal end.

Disconnect the bar that connects the pedal to the linkage and then see if you can operate the throttle with the bar smoothly.

Judging by how loose the bracket on the pedal itself is in the video, I would guess that's the real problem. If so, it is a PITA to fix I would guess. You need to drill out the old rivet (if not already been done once already), then replace the bracket and either rivet in with new rivet or maybe use a wee bolt.

Cheers,
Robin

[Rich H]

Throtle link kit from Geary replaces the lot with nuts and bolts and new bushings and stuff form what I remember, might be worth a look regardless.

[foz01]

Thr geary item just looks to replace the main bar with the pivot so is unlikel to fix the problem so it seems...

Hmmm


Will get a good rummage around tom and dismantle whats there to see just how donald ducked it really it

[Rich H]

Thr geary item just looks to replace the main bar with the pivot so is unlikel to fix the problem so it seems...

Hmmm


Will get a good rummage around tom and dismantle whats there to see just how donald ducked it really it

You are going to rummage around in Tom? I think he might complain...

Try Ed, he won't mind!

Where are the Paine brothers anyway?

[mckeann]

lowell, the car already has the uprated throttle linkage from eliseparts.


Like Robin says, you havent diagnosed the problem yet. There was nothing wrong with the throttle when i sold it, other than it had sat outside for a few weeks, so i am guessing that it has been moisture that has caused it. I certainly had that problem the previous winter. Theres no point replacing the linkage if its due to moisture in the throttle trunion.

Happy to have a look at it at knockhill on friday if you dont get any further.

[foz01]

I do think the bit thats fitted to the actual pedal could do with replacing!?

You still going along yeah, will take that jacket down for you, cheers!

As for not diagnosing it, obviously i am not overly familiar with it yet, hance my question DTADT?

[ed]

Where are the Paine brothers anyway?

Thr geary item just looks to replace the main bar with the pivot so is unlikel to fix the problem so it seems...

Hmmm


Will get a good rummage around tom and dismantle whats there to see just how donald ducked it really it

You are going to rummage around in Tom? I think he might complain...

Try Ed, he won't mind!

[robin]

As for not diagnosing it, obviously i am not overly familiar with it yet, hance my question DTADT?

Have you tried operating the throttle with just the link bar (the thing that connects the pedal to the throttle linkage, disconnected from pedal but still connected at the other end)?

Also, once the link bar and the return spring are disconnected from the throttle pedal you can check for smooth motion of the throttle pedal - loads of side to side movement or snagging could easily generate enough friction to hold the throttle open.

Let us know what you find ...

Cheers,
Robin

[foz01]

Have you tried operating the throttle with just the link bar (the thing that connects the pedal to the throttle linkage, disconnected from pedal but still connected at the other end)?

You talking about part no 64 on the previous diagram?

Also, once the link bar and the return spring are disconnected from the throttle pedal you can check for smooth motion of the throttle pedal - loads of side to side movement or snagging could easily generate enough friction to hold the throttle open.

I ahvn't got round to pullign anythign aprt yet- 3 week old baby and all that good stuff,