'68 Pedal Cluster Fun

[Fritter]

My throttle has been sticking to the floor intermittently for a while, and I finally figured out why. The plastic bushings on the little throttle cam behind the gas pedal have begun to crumble.

So, this is allowing the cam to wobble and it's getting stuck to the right side of the little indentation in the sheet metal for the throttle cam. Not good!

I ordered a bronze bushing kit from Stoddard today, but I was wondering, can I just replace the throttle cam bushings with the cluster still in the car?

I want to drive the car all summer and I'd finish the rest of the job next winter in our midwest "down time".

Thanks,

[speedo]

You can replace the bushing in the "bellcrank" with the pedal cluster still in the car. It is a pain however to get to it while laying on your stomach across the floor. You can remove the pedal cluster in 10 minutes...4 bolts...(actually 8 if you need to remove the pan protecting the steering rack to get to the nuts that secure the brake master cylinder). Doing the re-bushing of the pedal cluster the right way...involves separation, cleaning, (maybe sandblasting and repainting), installing the bushings,lubing and reassembling. Much easier to do on your bench than in the car. If your cluster is clean and doesn't require a repaint (and if it does, make sure you don't paint the bearing surfaces), the entire job should easily be done and reinstalled in 2-3 hours. Hardest part will be reconnecting the clutch clevis...you need to be able to see around corners and have skinny fingers that articulate both ways.

Speedo

[edmayo]

So Mike, are you coming to Parade? I'm doing a tech presentation on overhauling the entire throttle linkage system including those forgotten bushings in the tunnel and how to set your bellcrank angles properly. For what its worth I stopped using the bronze bushings decades ago because although they are good forever I don't like their sloppy fit compared to the OEM plastic. As speedo said in answer to your question the throttle bellcrank on the pedal ass'ly can be done in the car (slide the seat all the way back) but it is easier on the bench. I do it both ways depending on what the situation calls for. This will be a good time to also replace the throttle pedal. The pedal is part of the RETURN SPRING system, plus the rubber hinge wears out and the pedal tends to push sideways which also tends to get the linkage caught under the tunnel. You will be amazed in at the difference in feel of a new pedal.

[Fritter]

So Mike, are you coming to Parade? I'm doing a tech presentation on overhauling the entire throttle linkage system including those forgotten bushings in the tunnel and how to set your bellcrank angles properly. For what its worth I stopped using the bronze bushings decades ago because although they are good forever I don't like their sloppy fit compared to the OEM plastic. As speedo said in answer to your question the throttle bellcrank on the pedal ass'ly can be done in the car (slide the seat all the way back) but it is easier on the bench. I do it both ways depending on what the situation calls for. This will be a good time to also replace the throttle pedal. The pedal is part of the RETURN SPRING system, plus the rubber hinge wears out and the pedal tends to push sideways which also tends to get the linkage caught under the tunnel. You will be amazed in at the difference in feel of a new pedal.

Ed, when and where is the Parade?

I figured there had to be a procedure somewhere to get all those rods screwed in correctly, I'd like to see that!

I ordered the bronze kit because it was all I could find, didn't know plastic was available, where did you get that Ed? I hope the bronze isn't so sloppy that the pedal will still catch.....

Thanks for the tip on the pedal, I may just get a new one of those too.

But my main goal now is to get the car operational again so I can DRIVE!!!

[John Straub]

Where and when Ed...I'd like to see come to it.

John

[edmayo]

Hi Mike, Parade is in Keystone Colo. and starts Sunday, probably a little late for your planning purposes now. The plastic bushings are available from your local friendly Porsche dealer, if you've got the bronze go ahead with them, they're not that bad.
John I think my session is 2:45 on Friday.

[Fritter]

OK thanks Ed you had me worried about the bushings. Actually for the rear bellcranks, I used plastic and I wanted to for the pedals, but bronze was all I could find, so I'll give them a shot.

Have fun at Parade!!

[naparsei]

So Mike, are you coming to Parade? I'm doing a tech presentation on overhauling the entire throttle linkage system including those forgotten bushings in the tunnel and how to set your bellcrank angles properly. For what its worth I stopped using the bronze bushings decades ago because although they are good forever I don't like their sloppy fit compared to the OEM plastic. As speedo said in answer to your question the throttle bellcrank on the pedal ass'ly can be done in the car (slide the seat all the way back) but it is easier on the bench. I do it both ways depending on what the situation calls for. This will be a good time to also replace the throttle pedal. The pedal is part of the RETURN SPRING system, plus the rubber hinge wears out and the pedal tends to push sideways which also tends to get the linkage caught under the tunnel. You will be amazed in at the difference in feel of a new pedal.

Ed,
Are you talking about 901-423-010-00-M260, or is there more to the assembly that you are talking about - to replace? My wife bought me (yesterday) a 71 beater as a birthday present, and the accelerator acts in exactly the manner you describe. I am going to redo the pedal cluster, but it is the accelerator that really needs the attention. I need to order the correct bits to get moving.
Thanks,
Alex

[edmayo]

naparsei, you have a P.M.