Brake pedal Return Springs/stops? C9? Others?

C9, I remember a neat and tidy solution you posted to a return sring for a brake pedal? Can you post it again?

Also, Any other trick solutions to a return spring. I want something more than just a spring pulling the pedal back.

 

I saw one that was a compression spring over the push rod for the Master Cylinder.

 

Unk, I THINK thats how C9 did it?????

Come on!?? Nobody have a sugestion?

 

Don't have any pics, I have done this many times, but you need access to a lathe etc.. With that said, turn 2 discs (I use 6061 T651 alum.) with an i.d that allows them to slip over the push rod which moves in and out of the master cyl.. These discs should be approximately 7/8" to 1" dia. and have a shallow counterbore the same size as the o.d of the spring that you use. The first disc rides free in the plunger shaft up against the master cyl. The other needs a set screw cross-drilled into it, which will snug it down on the plunger shaft. The spring goes between the discs and sits in the shallow counterbores so it doesn't move around. When the pedal is depressed and the plunger "plunges" into the master cyl, the spring is compressed. When the pedal is released, it returns to its home. Don't use too heavy a spring. We have a nut/bolt place locally which has a large selection of coil springs. Also look at some of the big national catalog tool houses, such as MSC. Good luck. This setup is clean and works great!

 

Sounds like a nice solution! I have a lathe at work, no prob. How do you adderss the rubber boot with the MC side disk?

 

Here's a pic.

Further info on C-Word's site.
Go to FSRA.org, click on site map and go through the back issues until you find an article labeled, "Front Stoppers."
(June 2002)
Go to the bottom of the article for the brake spring info.

 

make a positive return stop to insure the pedal won't bounce the rod out of the master.could easily be overlooked........

 

[ QUOTE ]
make a positive return stop to insure the pedal won't bounce the rod out of the master.could easily be overlooked........

[/ QUOTE ]

Choprods ... right you are ... it's covered - with pics - in the FSRA article.

 

Thanks C9!

Kenny, I will do some form of stop, dont know how yet. We did a tab/jamnut/bolt arraignment on my pal Randys coupe. My brake pedal is about 3" from the frame rail. I might make a little tubular "bracket" to mount my stop to.

 

You're welcome.

I meant to mention that I have the identical setup on my 32 and it's been trouble free.

Don't forget to drill and tap your brake pedal pivot for a Zerk.
I forgot to do that on the 32 and what should have been a 5 minute job turned into an hour of PITA.

 

Yeah, already have provisions for a Zerk. I like how clean this method looks. Plus it gives an excuse to play on the lathe!

 

Note the part number on the plastic bag the spring came in.
I got mine at the hydraulic/bolt-nut/machine shop/metal-supply/neat stuff store, but you can also find them at Home Depot and Lowes.