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Trying to help out a fellow 77 owner. I need to move this cover.
This large sleeve for lack of a better term. With the red paint showing through the poor black paint job.
The service manual and the AIM are both 100 percent not clear. I can't see anything that retains it. But it doesn't move and I don't wish to break it. Seems someone tryed to pull the cruise control wiring through without removing the pins from the connector block and now its jammed up in there. I need to slide this cover down to free up this wiring connector.
This connector, C141 has been pulled up inside and is hung up. I can feed the wiring out the bottom, but no matter what, tugging back down, on different angles, back to the top. Nothing, I need to move this cover / sleeve to free this connector and can't see what's holding it.
Thanks much for any help.
Just by looking at the turn signal lever dimmer pivot (black plastic) that may be a mix and match column but it is not totally a complete 1977 column.
This is also evident of your photo in post 9085 in the "What Did You Do To Your C3 Today" section.
The original location of the Cruise switch on the 77 was on the tilt lever not the turn signal lever, so the wiring of the cruise switch exited in a different location.
So who knows how "that" cruise wire was fed through.
You may need to un-pin each turn signal switch wire from the harmonica connector and pull the bundle out and start over.
That's what I see anyways.
Sorry to say, that column is a mess...
I see that pivot bracket is pinned, not a shoulder bolt like a 77 did also indicating a later upper assembly.
The cruise wires are not part of the harmonica clip harness. The wiring for the turn signals and the rest of the wiring that goes to the harmonica connector are all free and fine. As the diagram from my factory 77 electrical troubleshooting manual clearly shows, this is a separate connector. Still need to move this sleeve.
Any answers?
I do see your point about this being a mix and match column however. My 77 does not have cruise, but the wiper switch is clearly part of the signal switch. So I see a issue getting his wipers working.
looks like a real **** fight. No wonder none of the diagrams make sense.
OK. So I know where the wiper switch is on 76 and older cars. And I've been driving a 77 for something like 35 years. But I have no idea where the wiper switch is on a 78-82. Perhaps in his conversion they updated other parts of the interior? Can it be possible to use this column in a 77? Should he be searching junk yards for correct column?
The cruise wires are not part of the harmonica clip harness. The wiring for the turn signals and the rest of the wiring that goes to the harmonica connector are all free and fine. As the diagram from my factory 77 electrical troubleshooting manual clearly shows, this is a separate connector. Still need to move this sleeve.
Any answers?
I understand that, your cruise wiring is tangled around something possibly the dimmer rod?...
OK. So I know where the wiper switch is on 76 and older cars. And I've been driving a 77 for something like 35 years. But I have no idea where the wiper switch is on a 78-82. Perhaps in his conversion they updated other parts of the interior? Can it be possible to use this column in a 77? Should he be searching junk yards for correct column?
Yes, the wiper switch on 78 and later is on the left side of dash panel above the headlight switch...
As far as taking the column apart, next step is to remove the tilt spring, use pivot pin tool to remove pivot pins, pull off bearing housing, and then unbolt the tilt knuckle. The lower shroud will then come off.
O.K. so it appears that he bought a basket case 77. And the column must be from a later year.
so, is it possible to fit the 77 wiper switch to this column?
A 1977 wiper switch will fit the later pivot bracket just fine.
The pivot bracket in the column your working on is pinned with a 13/64" solid pin.
A pivot bracket used on 1977 uses the shoulder bolt.
Using that pinned on pivot bracket you just need the switch portion.
I have found a more modern switch that will work as a replacement if needed.
I think you said at one time you don't click on links, here is the replacement switch and what you would need to do wiring wise.
This switch uses the same pivot bracket that is in the column your working on so no hole enlargement needed for a shoulder bolt...
My Youtube Link:
Here is a photo of what the differences are between the pivot bracket that column has and a 1977 pivot bracket, it's just one hole is drilled out larger for the shoulder bolt on the 77.
There is a NOS 7827152 1977 Corvette W/ T&T column wiper switch on e-bay right now for $500.00 or best offer...
LINK:https://www.ebay.com/itm/35445288704...Bk9SR7qtwvCnYQ
Also, that Turn Signal/Cruise lever you have now does NOT have the pins to rotate the wiper switch contacts if used on the 1977 or the replacement wiper switch.
What dimmer pivot rod is in that column?
1977 Dimmer Pivot Rod is also a one hit wonder for the 77 T&T column...
If you use the replacement switch you will need to find the Male 4 wire connector housing that plugs into the Main Dash Harness, if you were closer I would give you one.
Last edited by bmotojoe; Dec 23, 2022 at 08:32 AM.
Thanks heaps. I generally don't click on links. But this time I'll make an exception. The owner of this column recently joined our forum. I convinced him it was a good idea. I'll have him take a look as well. So we need the switch, and a 77 turn lever. And the wiring connector. Sounds doable. Cheers mate and thanks again!
Thanks heaps. I generally don't click on links. But this time I'll make an exception. The owner of this column recently joined our forum. I convinced him it was a good idea. I'll have him take a look as well. So we need the switch, and a 77 turn lever. And the wiring connector. Sounds doable. Cheers mate and thanks again!
No problem
As you well know the 1977 Wiper/Washer (Smart) switch is a one year only part.
If you are considering looking for the 7831417 replacement switch here is some other info that may help in locating one.
The 7831417 switch was used in the 1980 Chevrolet Citation, Buick Skylark, Oldsmobile Omega & Pontiac Sunbird.
Other part numbers for the 7831417 switch are:
Standard Motor Products DS450
ACDelco D6313A
If you have any other questions about the original 1977 switch or the replacement switch don't hesitate to reach-out, I have really good documentation on both...
Here is a NOS 7831417 switch on e-bay but shipping alone to Australia is almost $60.00
E-Bay LINK: https://www.ebay.com/itm/32544770873...Bk9SR5TRtMeoYQ
Last edited by bmotojoe; Dec 24, 2022 at 09:12 AM.
Reason: Added E-Bay Link
Once again I thank you one and all for your help.
I would PM Joe with this but there is no way to send photos. So, I can tell as I am mocking this up that this is a 79 column. Based on the ign barrel retainer.
We have located a newer style replacement switch. And while waiting on that starting to mock things up to see what else we are missing.
In this photo you can see the pivot. And the dimmer switch rod end. What's missing here? Obviously they don't connect. I have looked but have not found a clear photo of this and I didn't take it apart.
Also. If using the later switch. Which fits this pivot pin. And the 79 up dimmer switch. Which rod would I need to use?
Truly appreciate the help.
Next question.
In my column, the steering wheel lock ring (for lack of a better term) this star shaped wheel looks like this.
And it certainly looks like it would fit fine in his column.
But he can't have mine. I looked on zip corvette, couldn't find one listed. His column came with this part.
Not certain what car this came off of but certainly doesn't fit this column.
Anyone know the correct name and part number for a lock ring like the one in the top photo?
Once again I thank you one and all for your help.
I would PM Joe with this but there is no way to send photos. So, I can tell as I am mocking this up that this is a 79 column. Based on the ign barrel retainer.
We have located a newer style replacement switch. And while waiting on that starting to mock things up to see what else we are missing.
In this photo you can see the pivot. And the dimmer switch rod end. What's missing here? Obviously they don't connect. I have looked but have not found a clear photo of this and I didn't take it apart.
Also. If using the later switch. Which fits this pivot pin. And the 79 up dimmer switch. Which rod would I need to use?
Truly appreciate the help.
The dimmer rod connects to this actuator. anything like this laying around?
Same actuator was used from 1977-1982 on T&T columns.
GM #7827028
Thanks, no I don't have one of those. But perhaps we can find one.
Then if the same actuator is used. And we use the new switch and the 79 dimmer switch on the lower column. We can then use the existing pushrod???
77 Tilt/Telescopic column.
