Thread: Throttle cable dilemma

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After I posted I started to look at the McMaster Carr on-line catalog and have just about come up with the same idea though was looking for some internally threaded tubing and male Heim instead, but will probably settle on what you did. Those Lokar cables are nice, but in my case as well as yours, wont work so it's back to the tried and proven.

What did you use for that insulation material? I think I have some .125 sheet Buna-N that might work.

The one on my T is a Lokar and luckily I had enough room for a nice curve in it, but when we installed the Lokar one on my Son's T he has 2 fours, so the rear carb is pretty much right at the firewall. It created a steep bend in the cable. We couldn't figure out another way to do it, so we went with it bent that way, and it actually seems to work pretty well.

I don't know how it will accelerate the wear inside the cable being bent that much, but I just wanted to let you know they will work on weird angles. I don't have any pictures showing the one in Don's T, but here is one of my T. As you can see, mine is only about 7 inches long and now that I look at it, the bend is fairly severe.

Don

Don,
Thanks.
I only wish I had 7" of space - I just remeasured mine and have a hair under 4" allowing for the ferrules. I had no clue it was this close until yesterday when I took a break from wiring to set this throttle cable up. I've spent some time in the McMaster-Carr catalog and ordered some SS Heims and some SS rod. Guess I'll need to sell the cable now to pay for this new expenditure It should show up in the for sale threads in a few days

This is what I ended up with along with a chunk of 309 SS rod. The rod ends are not SS though but "A PTFE-lubricated, carbon-fiber-reinforced plastic race provides wear resistance and doesn't require lubrication. Rod ends are three-piece and have a zinc-plated steel housing and ball". These have almost twice the load capacity of the SS versions. I suspect that a bit of 0000 steel wool will polish them just fine then a coat of clear will keep 'em shiny. UPS will deliver today!!!!

Now that you've spent the money and are standing guard at the mailbox, there's another way out.

Which . . . still makes use of the Heims and rod.


Set up a bracket with bell crank or a simple swinging arm near the front of the engine (or at least in front of the carb throttle arm), run the throttle cable to it.

Run a short rod with Heims back to the carburetor.

That way, the firewall seal is easy and you have a smooth, long turn to the bellcrank/arm.

Originally Posted by C9x

Which . . . still makes use of the Heims and rod.


Set up a bracket with bell crank or a simple swinging arm near the front of the engine (or at least in front of the carb throttle arm), run the throttle cable to it.

That way, the firewall seal is easy and you have a smooth, long turn to the bellcrank/arm.

Too much complication ....and there really are no spare manifold bosses with tapped hole left ahead of the carb. What I will be doing is making up something like your "weather guard' using a couple of.25 thick X 2" dia. aluminum round stock, a piece of .125 neoprene outside and possibly another inside. The rise and fall will probably be minimal (need to 'calculate it' ) so vertical splits in the neoprene should do me

I failed to explain it earlier, but the throttle rod heat guard/pass through has a Teflon floater within that follows the vertical travels of the throttle rod.

The one on the 32 is about 10 years old and the original hole in the Teflon floater was drilled 1/4".
The 1/4" rod fit the 1/4" hole with a bit of friction, but not much.
A few months later it was very free and hasn't shown any further wear.