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| using relays in place of the headlight motor control module (Page 3/4) |
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theogre
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SEP 06, 01:26 AM
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| quote | Originally posted by beaumontracer:
What if one headlight pops up, but one does not? Could you not just splice the "dead" wires into the wires for the side that works and then both motors would activate? |
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1st is often iffy motor doing this. 2nd = No.
Module would "trip" for overload w/ 2 motors on same side. if your lucky that all would do...
Even if seems to work... Relay and other parts in the module won't last long trying to run 2 motor on 1 side.
When motor don't open...
Turn motor's knob ~ 1 turn loose then try again. Works now then the motor, lift or both are your problem.
See my Cave, Gen 2 HL Motor
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imacflier
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SEP 06, 12:09 PM
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Rob,
Congrats! You have basically recreated the system used on C-2 Corvettes! When I first lived in ABQ I discovered they had a tendency to ice shut in the winters there. I had no motor or wiring burn out issues at all!
Good job!
Larry
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Blacktree
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SEP 06, 01:06 PM
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I remember buying one of the Corvette headlight actuators off eBay for about 40 bucks. But that was a few years ago. Looks like they go for $70-80 now.
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Dennis LaGrua
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SEP 06, 02:39 PM
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While the OP used the relay method to open and close the headlight motors, that method leaves out any form of motor protection. Very easy to strip a motor gear with your method. It may work for a while but doing it the right way with a new module is the far better solution.
I'd be very surprised if your headlight motors last more than a year but time will tell.
------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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qwikgta
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SEP 06, 10:15 PM
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Been working fine for over 6 months. Sometimes you guys just over think things.
Rob
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carguy8t8
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JUL 03, 03:49 PM
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If theogres comments were true then all of our power window motors would surely be burned up by now!! This is basically just a power window circuit.
Oh and the 3 pucks inside the gears ARE NOT sheer pins!! Stop saying it. When new those OEM gel plugs will not sheer no matter how many times you run those motors up against the stops.[This message has been edited by carguy8t8 (edited 07-03-2021).]
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Dennis LaGrua
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JUL 04, 08:31 AM
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Glad to hear that this episode had a happy ending for Rob. Looking back it should have been said that the gen 2 headlight motor modules can be rebuilt. The module contains a multi-pole relay that is often the main cause of failure. Those relays can still be found and can be replaced. Many times the fine wires to it break and can just be re-soldered. There was an article written on how to fix these modules but I'll need to locate it. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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qwikgta
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JUL 07, 05:14 PM
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| quote | Originally posted by Dennis LaGrua:
Glad to hear that this episode had a happy ending for Rob. Looking back it should have been said that the gen 2 headlight motor modules can be rebuilt. The module contains a multi-pole relay that is often the main cause of failure. Those relays can still be found and can be replaced. Many times the fine wires to it break and can just be re-soldered. There was an article written on how to fix these modules but I'll need to locate it.
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Still working fine. Only one issue a few months back. Up worked, Down didn't. Checked the relays and some water got inside and rusted it a little. Put in a new relay, put them into a water tight box and they work fine. And as stated above they do act like a power window circuit. Hold the button for up, push the opposite side to go down.
And I did try to "rebuild" mine before I went with the relays, I'm not that good with a solder iron b/c I kept getting the solder across more than one pin/wire at a time and in the end it did not work. But yes the parts were easy to find on the interweb.
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steve308
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MAR 02, 10:33 AM
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Thought I'd revisit this topic as it appears that I'm going to need a module and my source (GM restoration parts) sold to Classic Industries and now the $100.00 modules are $500.00 just like everyone else. I have found remanufactured modules for about $150.00 however.....While opening my garage door I came to the realization that it's function was controlled by limit switches simply mounted to the tracks and of course a switching module to reverse the motor direction. Looking at the headlight bucket / motor mounted to my bench it appears that limit switches could be installed that would not interfere with the lifting motion. Has anyone attempted this? If yes, did you make a bracket for the switches (3D) print. I do not have a printer (or the skills to use one).
Two limit switches per light (maybe only need one set on one light to control both lights) a controller some wire and a switch module can be had on Amazon for less then $50.00
What say the braintrust of Pennocks.
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Mickey_Moose
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MAR 04, 01:52 PM
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