Turn Signal Cam Replacement - 1965 Sport Fury

[65 Sporty]

Posted in Electrical and Reposting in Slab Years:

Hello -

Looking for advice on how to replace the turn signal cam in a 1965 Plymouth Sport Fury.

The top piece has a sleeve through it that retained the turn signal arm (left side) and the bottom plastic piece has all the wires terminated on it has a metal slotted cylinder that retains the red wire and that the turn signal arm screw went through to hold the arm on. It looks like the replacement cam is the top piece and I need to separate the top and the bottom (without breaking the bottom plastic). I hope someone can give advice on next steps.

Thanks

 

[slantsixdan]

You just carefully pry the cam off the switch body with two wide flat screwdrivers. Then you carefully remove the switch shuttles, one at a time, taking careful note of which way round they are (can make a dot at the top with a Sharpie to make it easier to keep track), then you use Q-tips and alcohol to clean the contacts in the switch body and the metal sleeve on the shuttle, and a new pencil eraser to polish the shuttle sleeve, then you use another Q-tip to apply a small(!) amount of Sil-Glyde grease to the shuttle channel, then you reinstall the one shuttle and repeat with the other one.

Then you reinstall the switch into the steering column with the three screws that hold it in, then you make sure both shuttles are centred in their channels, then you firmly and evenly press the new cam down onto the switch, then you install one of the spring nuts, crownside-up/bigside-down, onto the screw, then you install the screw, holding the lever in place til the screw grabs hold of it, and tighten til everything is secure.

 

[65CopCar]

What makes you think that is the correct part for your switch? Shee-Mar does not list one for a 65 in their catalog. Rock Auto does list a complete Shee-Mar switch for a 65 though, so I am a little confused. Shee-Mar does say a 66 cam could be a SM-9, SM-13 or SM-16, and the complete switch does interchange with a 65 so who knows.....

My dad was an artist when it came to fixing things. He would fix these broken cams by reinforcing the broken part with stainless plates and would rivet them together. I have one that is still working 40 years after repair.

More Information for SHEE-MAR SM102

 

[slantsixdan]

What makes you think that is the correct part for your switch?

Stand down; SM-13 is indeed the correct cam for the OE '62-'67 switches.

who knows.....

Some people do.

 

[slantsixdan]

Also available at NAPA as Echlin № DL-6123, or from Standard Ignition as № TW-78C.

There used to be a guy out of Illinois, name of Koldos, who made the planet's best replacement cams for the '62-'67 turn signal switch. Much better plastic material than original or any of the aftermarket ones, careful attention to detail; sharp corners radiused to take away stress risers (breakage points). This was decades ago; I would be shocked if he's still at it.

 

[65 Sporty]

You just carefully pry the cam off the switch body with two wide flat screwdrivers. Then you carefully remove the switch shuttles, one at a time, taking careful note of which way round they are (can make a dot at the top with a Sharpie to make it easier to keep track), then you use Q-tips and alcohol to clean the contacts in the switch body and the metal sleeve on the shuttle, and a new pencil eraser to polish the shuttle sleeve, then you use another Q-tip to apply a small(!) amount of Sil-Glyde grease to the shuttle channel, then you reinstall the one shuttle and repeat with the other one.

Then you reinstall the switch into the steering column with the three screws that hold it in, then you make sure both shuttles are centred in their channels, then you firmly and evenly press the new cam down onto the switch, then you install one of the spring nuts, crownside-up/bigside-down, onto the screw, then you install the screw, holding the lever in place til the screw grabs hold of it, and tighten til everything is secure.

Appreciate the detailed explanation and it was exactly as you described! Back in business.