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#1 |
Registered User
Join Date: Jan 2007
Location: Indiana
Posts: 107
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Wiring experts needed.....
Ok, I've made some progress (I know, I need to post pics, I'll get some soon, it does look bad azzzzz), anyway, I'm wiring the new motor up and have run into some problems. As you can see in these attached drawings, typically I would run the yellow wire to the MSD box to enable it to start. But, I'm going to run a mini starter, and they don't have the R or relay pole a standard chevy starter has. What I "think" happens, is that when starting, the coil gets 12V from the R post on the starter and when started and ignition switch is put to the run position, the 20P (depending on year, this example is from a 64, 65 has white/orange/purple) becomes hot with 12V and continue's to run the coil.?.?.? That's what I see from this diagram. So if I don't have a R pole on the starter, I'm thinking I may have to get an automotive relay, and run that off the S pole on the starter (16PPL) and run the contacts to the yellow wire, and the yellow wire also to the MSD box. This would provide a temporary, starter circuit hot to the MSD when starting. Does any of this make sense to anyone else? Am I on the right track?
Thanks.
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65' Chevy C10, Short Step ![]() 75' Chevy Big10 1/2, 1 time pull truck, now parts truck 02' GMC 2500HD 8.1L 4X4 ![]() Last edited by ron19; 02-10-2009 at 01:19 AM. |
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#2 |
Resistance is Futile
Join Date: Dec 2006
Location: Mesa,Arizona
Posts: 3,520
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Re: Wiring experts needed.....
S pole is 'solenoid'....it only gets juiced when your key is in the start position. If you are planning on using the solenoid (purple ) to activate a relay with battery power it would work. You are creating a 'switched' power source out of a continuous power source with the relay.
I think that 'R' terminal is just a junction. I dont know why they did it this way.
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64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device Last edited by protrash64; 02-10-2009 at 01:32 AM. Reason: added comment |
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#3 | |
Registered User
Join Date: Jan 2007
Location: Indiana
Posts: 107
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Re: Wiring experts needed.....
Quote:
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65' Chevy C10, Short Step ![]() 75' Chevy Big10 1/2, 1 time pull truck, now parts truck 02' GMC 2500HD 8.1L 4X4 ![]() Last edited by ron19; 02-10-2009 at 01:29 AM. |
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#4 |
Resistance is Futile
Join Date: Dec 2006
Location: Mesa,Arizona
Posts: 3,520
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Re: Wiring experts needed.....
Yes, you are correct......I was thinking correctly and wrote wrong
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64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device Last edited by protrash64; 02-10-2009 at 01:32 AM. |
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#5 |
Registered User
Join Date: Jan 2007
Location: Indiana
Posts: 107
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Re: Wiring experts needed.....
LOL, that's all right. Now, with adding a relay, would that basically be doing the same thing that the stock starter with the R pole is doing?
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65' Chevy C10, Short Step ![]() 75' Chevy Big10 1/2, 1 time pull truck, now parts truck 02' GMC 2500HD 8.1L 4X4 ![]() |
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#6 |
Resistance is Futile
Join Date: Dec 2006
Location: Mesa,Arizona
Posts: 3,520
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Re: Wiring experts needed.....
yes, if you are feeding battery power thru to the coil.
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64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device |
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#7 |
Registered User
Join Date: Jan 2007
Location: Indiana
Posts: 107
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Re: Wiring experts needed.....
Ok, cool and thanks. Funny thing is I do electrical work for a living, and I just couldn't understand why they wouldn't have the ignition (20P) hot while the key was in both the starting and run position. Wouldn't that be much simpler?
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65' Chevy C10, Short Step ![]() 75' Chevy Big10 1/2, 1 time pull truck, now parts truck 02' GMC 2500HD 8.1L 4X4 ![]() |
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#8 |
Resistance is Futile
Join Date: Dec 2006
Location: Mesa,Arizona
Posts: 3,520
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Re: Wiring experts needed.....
Its wierd to do it that way and you would have to figure out if the relay can power the solenoid correctly(S terminal). If that part works, your battery power is right on the starter. You could use this to feed the coil.
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64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device |
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#9 | |
Resistance is Futile
Join Date: Dec 2006
Location: Mesa,Arizona
Posts: 3,520
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Re: Wiring experts needed.....
Quote:
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64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device |
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#10 | |
Registered User
Join Date: Jan 2007
Location: Indiana
Posts: 107
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Re: Wiring experts needed.....
Quote:
Does this make any sense?
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65' Chevy C10, Short Step ![]() 75' Chevy Big10 1/2, 1 time pull truck, now parts truck 02' GMC 2500HD 8.1L 4X4 ![]() |
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#11 | |
Registered User
Join Date: Jan 2007
Location: Indiana
Posts: 107
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Re: Wiring experts needed.....
Quote:
Thanks.
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65' Chevy C10, Short Step ![]() 75' Chevy Big10 1/2, 1 time pull truck, now parts truck 02' GMC 2500HD 8.1L 4X4 ![]() |
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#12 |
Resistance is Futile
Join Date: Dec 2006
Location: Mesa,Arizona
Posts: 3,520
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Re: Wiring experts needed.....
I got ya.....I was thinking of the S going thru the relay....you would hook it up as an auxillary pathway of sorts......yeah, that would be cool.
I was fixing wiring last week and Im wondering if you have that 'cold' lamp in your dash. I didnt know about that 'til my buddy told me. He was old(and new) school GM tech.
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64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device |
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#13 |
Resistance is Futile
Join Date: Dec 2006
Location: Mesa,Arizona
Posts: 3,520
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Re: Wiring experts needed.....
as long as the alternator is hooked to the bat+ somewhere your good.
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64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device |
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