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Turn Signal Cancel Cam Not Working?

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rxc224

· Registered
1969 Camaro
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38 Posts
Discussion starter · #1 · (Edited)
I just installed a new tilt steering column, with all new parts including cancel cam in my 69 Camaro. I noticed that you really have to turn the wheel in order for the cancel cam to actuate and turn off the turn signal.

For left turns, I basically have to make the equivalent of a 90 degree left turn from a stop sign to cancel the turn signal. To cancel the right turn, the amount I turn the wheel is even greater. Is this normal?
 
Discussion starter · #5 ·
Here's what I'm seeing. I don't want to pop the cover off because I don't have a replacement snap ring, and it's pain in the arse to get back on anyway, but both springs are sitting in there.
Image
 
#6 ·
I don't see the 2 individual springs on the left upper and lower. Plate and cancel cam are in the way. I even zoomed in on the photo. You must have rotated steering to move plate around a little to see them.
 
Discussion starter · #7 · (Edited)
I bit the bullet and pulled the locking plate/cover out. Will need to order a new retaining ring. Anyway, here's what's underneath. All springs are there.

Image


I played around with this, using the white horn contact. I assume the way this thing is supposed to work is that the 2 bumps on the back of the horn contact (on the right side of the contact in pic below) are supposed to hit the spring that is "activated" when using the turn signal. And the bumps are supposed to apply pressure to the spring, cancelling the turn signal. I'm not certain that's how it works, but I tried doing this after taking it apart, and the springs basically don't force the cancel cam to move at all.
Image



I've also seen a lot of negative posts and reviews on the individual parts used (cancel cam, horn contact, etc), all noting the same issue of the turn signals not cancelling, supposedly b/c of cheaper plastic pieces than what was used for the OEM. I also contacted Heartbeat City prior to doing any of this, and they said that they get these rebuilt units from Gary's Classics. Contacted them and left a message, have yet to hear back. These things are too expensive to not be functioning correctly out of the box.

Georgia68 said:
I don't see the 2 individual springs on the left upper and lower. Plate and cancel cam are in the way. I even zoomed in on the photo. You must have rotated steering to move plate around a little to see them.
Click to expand...
 
#8 ·
The steering wheel moves the cancel cam bumps past the spring for each side. When wheel returns to center, the spring brings switch back to center whn bumps are back to steering wheel center. Best I can explain it. If you notice there is a cam effect design intergrated beyond the bumps to keep spring tensioned while in a turn.

Put the cancel cam into the switch with bumps centered between springs, Select right turn signal. Rotate cam clockwise until bumps are past the spring. Then rotate cam counter-clockwise until back to center between springs. Signal should have cancelled.

Repeat for left turn signal.
 
Discussion starter · #9 ·
Georgia, this was extremely helpful. I did what you said, and sure enough the turn signal cancelled in both directions.

As you can see from my post with the image of my horn contact, it sits in the 5 o'clock position. I knew my car needed to get an alignment because my steering wheel is very much off, but not knowing how the this all functioned until you explained it (and it was a good explanation), I didn't realize how the steering wheel not being aligned may create the problem, since the bumps don't engage the springs correctly.

I'll be putting it all back together, and after my car is aligned, if the issue still exists, I'll have to revisit this.

Thank you very much for your help!

Georgia68 said:
The steering wheel moves the cancel cam bumps past the spring for each side. When wheel returns to center, the spring brings switch back to center whn bumps are back to steering wheel center. Best I can explain it. If you notice there is a cam effect design intergrated beyond the bumps to keep spring tensioned while in a turn.

Put the cancel cam into the switch with bumps centered between springs, Select right turn signal. Rotate cam clockwise until bumps are past the spring. Then rotate cam counter-clockwise until back to center between springs. Signal should have cancelled.

Repeat for left turn signal.
Click to expand...
 
Discussion starter · #11 ·
Just to close this out for all the other DIYers out there who experience this problem. I finally had my steering wheel aligned (it was almost 180 degrees off), so it is now perfectly straight up and down. Both turn signals cancel every time.

Make sure your steering wheel is aligned if you're having issues with the turn signals not cancelling.
 
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Georgia68
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