Gas pedal return spring on 911?

[bpu699]

Still putting my 930 back together...

Pedal cluster went back in, new bushings put in. Gas pedal doesn't seem to return fully to normal, yet there is no binding. Idle is 2000 rpm, but settles down if I pull the pedal back manually.

Is the spring on the throttle the only thing that pulls the pedal back? Or is there supposed to be a spring in the pedal cluster that pulls the gas pedal back?

When you pull on the cable in the footwell that attaches to the gas pedal it moves really easily, and it takes little force to pull it, it just doesn't slide back that last 1/4 inch under its own power.

I searched the manual, and didn't see any other spring? Do I just put a stronger spring on the throttle?

Thanks for any help.

[mooney265]

Yes, just the one spring. I added another. So, I have 2 there...

[proffighter]

Noooooooo there is another one here:

[quattrorunner]

Mine had two on the throttle linkage in the engine alone. Plus the one on the cluster. The one almost in that picture above. It's a simple pull coil spring that helps bring throttle back closed. Mine broke and I replaced with one from ace hardware. When it broke the throttle was too light and felt weird. It did return though. Good luck

[bpu699]

Thanks guys. I will either add a spring to the throttle or perhaps just add a small spring to the pedal cluster, as it should be easy to do.

The PO had a spring he added to the bottom of the engine, on the throttle linkage bellcrank, and that was working, it just looks odd. But it looks like this was an issue before...

[fredmeister]

Originally Posted by bpu699

Still putting my 930 back together...

Pedal cluster went back in, new bushings put in. Gas pedal doesn't seem to return fully to normal, yet there is no binding. Idle is 2000 rpm, but settles down if I pull the pedal back manually.

Is the spring on the throttle the only thing that pulls the pedal back? Or is there supposed to be a spring in the pedal cluster that pulls the gas pedal back?

When you pull on the cable in the footwell that attaches to the gas pedal it moves really easily, and it takes little force to pull it, it just doesn't slide back that last 1/4 inch under its own power.

I searched the manual, and didn't see any other spring? Do I just put a stronger spring on the throttle?

Thanks for any help.

Did you make sure the bushings in the engine mounted belcrank assembly pictured in the post above with the torsion spring element were in good condition?
Sometimes they get worn out or missing causing the linkage to bind. I had to replace mine because they were worn out and deformed.
Then add a spring to the linkage at the throttle body to add force as well. That should be all you need.

Fred

[S1000RR]

Having at least two throttle return springs is a fundamental safety measure.

[Redbarnman]

I had a throttle that would sometimes not return unless the pedal was lifted - cured it by doubling up the spring under the pedal (mine is a RHD car so this was done on the passenger side). Then after not using the car over winter the problem returned. So I followed the cable route to where the bellcrank sits on the side of the transmission. This was rusted up and causing extra friction. You don't seem to be able to take this off with the engine in situ but you can take out the split pin and move the lever while putting some oil on the bearing. Throttle action now perfect so I took off the previously added spring which just increased the throttle stiffness and made the car less enjoyable to drive.