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#1326 |
Registered User
Join Date: Jul 2012
Location: Des Moines IA
Posts: 1,250
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Re: Restoring Rusty
The colors match and the pins themselves match, but the plastic connectors can be slightly different between the years. I pulled pins from the '82 tilt column and combined the wiring from my broken '74 column and everything connected and functioned properly. Aside from one slightly infected puncture wound from a steel pick tool while removing a pin, everything went smooth with that part of it. Post '96 of my build thread if you'd like to take a gander, but pictures were slim at the time because I had such a bad time pulling my old column out since I had never done it before.
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- 1981 Sierra 454, NV4500 swap - 2006 Z06, 25k miles - 1973 Nova - Project CarNova Virus on Youtube |
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#1327 |
Registered User
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
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Re: Restoring Rusty
Well I'll be.
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http://67-72chevytrucks.com/vboard/s...d.php?t=581873 The low buck build threads. Check'em out! http://67-72chevytrucks.com/vboard/s...d.php?t=666022 My build thread Crossmembers CC |
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#1328 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty
ok fellas help me out here (while we wait for the ignition sector gear to show up) knowing what we know now about the rainbow of colors turn signal switch plug and wiring harness:
How do we activate / test each component? For example what do we supply to the GREEN wire to make the right rear turn signal turn on? Do we give it positive power, or do we connect negative to it? I ask because to activate the horn BLACK wire I have to connect negative to it, but to activate the turn signals GREEN, YELLOW, LIGHT BLUE, DARK BLUE, I have to give positive power to it. No idea how to activate the other ones, WHITE, PURPLE, BROWN. Please enlighten me in the ways of electric current flow. |
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#1329 | |
Registered User
Join Date: Feb 2015
Location: Santa Rosa, Ca.
Posts: 539
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Re: Restoring Rusty
Quote:
As far as the turn signal and hazard wiring goes.... they are all positive. I am a retired automotive electrician the only test one would do at that connection would be to trouble shoot a single circuit not working as it is suppose to. generally it is fairly obvious if the switch is bad. For the basics you need to know which way the current flows. all circuits form a loop you need to determine where the part you are testing is in that loop. one way is to figure out where the load (light) is in the loop. Then figure out where the control (switch) is. If the control is in front of the load its positive, if behind it is negative. so lets apply this to your horn circuit. the horn is grounded to the chassis by mounting. the green lead goes back to the relay. A relay is nothing more than a switch. the other side of the relay is fed with battery voltage. to energize the relay we need a control circuit. power enters the relay as normal battery voltage but to energize it we need to complete the circuit. so from the control side power goes in and the ground goes up the column through the T/S switch to the horn contact when you press the horn it ground the black wire which energizes the relay and the horn blows. I am sure this is all clear as mud. I do better as a teacher in person ![]()
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1977 Chevrolet C/10 Silverado. Step-Side, Factory 454, TH400, 3.73 Posi 12 Bolt. 1975 Chevrolet El Camino. 350, TH400, 3.08 Posi 10 Bolt. |
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#1330 |
Registered User
Join Date: Feb 2014
Location: Mukwonago, WI
Posts: 268
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Re: Restoring Rusty
i also want to know what the white wire is.
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#1331 |
Registered User
Join Date: Feb 2015
Location: Santa Rosa, Ca.
Posts: 539
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Re: Restoring Rusty
The white wire is the feed for the brake light (stop light). It comes from the stop light switch and goes into the T/S. From there it goes on its way to the rear lights
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1977 Chevrolet C/10 Silverado. Step-Side, Factory 454, TH400, 3.73 Posi 12 Bolt. 1975 Chevrolet El Camino. 350, TH400, 3.08 Posi 10 Bolt. |
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#1332 | |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty
Quote:
Last edited by Gregski; 04-01-2015 at 09:35 PM. |
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#1333 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty
OK, so I figured it out it goes behind this switch rack to push it against the plastic spector gear better/firmly
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#1334 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty - Ignition Switch Assembly Anatomy
ok so let me share with you the anatomy of the ignition switch assembly
first of all it is mechanical and not electronic, say what? yes the actual ignition switch does have wires plugged into it, but it is operated / manipulated mechanically so it all starts with you putting the Key in the Ignition Lock Cylinder (as opposed to the door lock cylinder) notice I did not say what we all have heard andy maybe even said "Put the key in the ignition" umm no or worse "Put the key in the ignition switch" On our trucks the key goes into a Lock Cylinder and there are no wires (at least on mine) that plug into there, zero, nada, zilch the Lock Cylinder connects to a plastic gear called an Ignition Switch Sector which looks like a half circle with teeth on it [pronounced "The Part That Usually Fails"] The Sector Gear connects to the Switch Rack Assembly made out of what seems like the world's finest shinny pot metal, kinda like a rack and pinion steering concept a round ball makes a 2x4 go side to side or up and down concept The Rack connects to a Switch Rod, basically about a foot long metal coat hanger looking thing with two hooks one at each end, this works like a push \ pull device So far we covered five components, Key, Cylinder, Sector, Rack, and Rod and no wires to speak of, see MECHANICAL finally the Rod connects to the actual Ignition Switch, now this switch actually has two funky looking plastic connectors which plug into it, in my case one plug is white and the other black yours may differ So I like to think of this as an old lazy man sitting in his lazy boy and using a broom stick to turn the light switch off and on located just out of reach on the wall next to him ~ how's that for an analogy And this my friends is why these vehicles were / are so easy to steal, and I speak from experience... no I do not steal cars, I had one stolen. You see all you have to do is get ahold of that metal rod maybe cut it and push it down and whalla vroom vroom vroom truck is running Last edited by Gregski; 04-01-2015 at 11:40 PM. |
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#1335 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty
here's another look at the Ignition Switch Assembly Anatomy with all the parts separated out a bit and with close ups to see how they interlock together
I found this interesting and hope it helps somebody out, I find beauty in the simplicity of these wonderful machines Last edited by Gregski; 04-01-2015 at 11:49 PM. |
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#1336 |
Post Whore
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Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty
size does matter, here's wishing this thing was three inches shorter
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#1337 | |
Registered User
Join Date: Feb 2015
Location: Santa Rosa, Ca.
Posts: 539
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Re: Restoring Rusty - Ignition Switch Assembly Anatomy
Quote:
To steal one..... You would not cut the rod. While you can start it that way, it does not bypass the steering wheel lock. The easiest and most effective way to steal a vehicle of the late 60's and 70's is to just use a slide hammer with a screw in the end. Then just thread it directly into the cylinder key slot and pull the cylinder. After that you can use a common screwdriver to twist the sector and work the ignition.
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1977 Chevrolet C/10 Silverado. Step-Side, Factory 454, TH400, 3.73 Posi 12 Bolt. 1975 Chevrolet El Camino. 350, TH400, 3.08 Posi 10 Bolt. Last edited by Titomars; 04-02-2015 at 12:09 AM. |
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#1338 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty - Ignition Switch Assembly Anatomy
See, I would not make a good car thief, lol, thanks for the history of development it was a neat time for sure, now cars are just appliances, borring
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#1339 |
Registered User
Join Date: Jan 2009
Location: Calgary, AB
Posts: 1,181
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Re: Restoring Rusty
Christ at the point you have that steering column I'd be ripping it out and shortening it the 3" you need lol.
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#1340 |
Registered User
Join Date: Feb 2015
Location: Santa Rosa, Ca.
Posts: 539
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Re: Restoring Rusty - Ignition Switch Assembly Anatomy
Hah !!! I thought I was the only person calling today's vehicles "Appliances". You know I remember a time when a car Divisions offerings for a specific year created excitement. The buyer had so many choices. Now everything looks the same regardless of brand.
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1977 Chevrolet C/10 Silverado. Step-Side, Factory 454, TH400, 3.73 Posi 12 Bolt. 1975 Chevrolet El Camino. 350, TH400, 3.08 Posi 10 Bolt. |
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#1341 |
Registered User
Join Date: Feb 2015
Location: Santa Rosa, Ca.
Posts: 539
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Re: Restoring Rusty - Ignition Switch Assembly Anatomy
deleted, double post
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1977 Chevrolet C/10 Silverado. Step-Side, Factory 454, TH400, 3.73 Posi 12 Bolt. 1975 Chevrolet El Camino. 350, TH400, 3.08 Posi 10 Bolt. |
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#1342 |
Registered User
Join Date: Apr 2014
Location: Bloomington Indiana
Posts: 1,041
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Re: Restoring Rusty - Ignition Switch Assembly Anatomy
Yeah, they all look like jelly beans. Even the pickup trucks. Then someone puts a tiny crease in the sheet metal down the side of a new model and all the car mags get chubbies over it. Losers.
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Rich Weyand 1978 K10 RCSB DD. |
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#1343 | |
Registered User
Join Date: Apr 2014
Location: Bloomington Indiana
Posts: 1,041
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Re: Restoring Rusty
Quote:
![]() I felt the same way when I first got my truck five years ago, but haven't felt that way in years. It was a different driving style then, not just in our trucks. You can hang your arm on the window sill (now they are all up to your ears) and steer with two fingers on the highway. You can palm the wheel around the corners in town. You can have your right hand in your lap on the highway and steer with your fingers from there. The whole European style, rack and pinion, small wheel, high steering effort, hands at 10 and 2 driving style requires the wheel to be further out in front of you so you can get some leverage on it, and you need most of your arm length just to reach them. The car mags all thought this was great when they took the cars to the track, and that's what I preferred on autocross courses 35-40 years ago myself. But I used to do a lot of cross-country driving in domestic cars in the 1970s, and I think the common driving position then was much easier and less fatiguing for off-track driving.
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Rich Weyand 1978 K10 RCSB DD. |
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#1344 | |
Registered User
Join Date: Dec 2007
Location: Kimberley, BC, Canada
Posts: 799
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Re: Restoring Rusty
Quote:
And I'll also agree that the 70s driving position was more comfortable. I've driven my truck across Canada about 6 times now. That's about 36,000 miles. It's really comfortable, just noisy. The only real problem is the self-retracting seat belts, but I have a bandaid for that. But about the steering wheel position, I think most race cars are setup with the wheel close to the driver's chest to *increase* their steering strength. Just look at nascar cars. I think the wheels were moved away from the drivers as soon as air bags came on the scene. My guess is the manufacturers are worried about the injuries that might be caused by having the steering wheel too close to the person's chest when it deploys.
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Greg 64 GMC Suburban - 283, NV3500, 14 bolt 77 C10 swb - 292, SM465, 12 bolt |
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#1345 |
Registered User
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
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Re: Restoring Rusty
I drive a toaster everyday to work. It only does lightly toasted to burnt and that's it. It has AC, Power steering and a radio. That's it. No fancy power windows that mess up later in life or those doomaflogees that tell you when you are close to somebody. It don't even have carpet, lol. No extended cab or crew cab either. So basic Terminex probably thinks it's one of their trucks......
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http://67-72chevytrucks.com/vboard/s...d.php?t=581873 The low buck build threads. Check'em out! http://67-72chevytrucks.com/vboard/s...d.php?t=666022 My build thread Crossmembers CC |
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#1346 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty
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#1347 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty - Steering Column
So got the steering column back together and now we can get back to business
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#1348 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty
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#1349 |
Post Whore
![]() Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,835
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Re: Restoring Rusty
I just had to get the truck out of the garage and snap some pics of the newly painted hood, not bad I think
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#1350 |
78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: Restoring Rusty
yup,looks good
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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