starter wire info needed

[crazy4chevs]

I need to know the wires for the starter and coil on a 70 c10.

1. purple- to the S terminal on the starter solenoid. is this right?

2.braided wire to the r terminal. (what it for?) is it nessasary?

3.yellow wire???


one of them should be for the coil right? Can i just go from thr R terninal to the coil +?

thanks, Lance

[71meangreenc10]

Purple goes to the S terminal, (start) Yellow is the coil wire and goes to the R terminal, what color is the other, if its white/orange/purple it goes to the R terminal too,

Smitty

[69-350]

just a little info (oddly enough, we're going over starters in auto tech lately, know all about em and how to rip em apart and rebuild, etc) the R terminal goes to your coil if you have points. What it does is open a hot connection from your solenoid to your coil, to get a nice extra smokin hot surge of juice to help when you're first firing up your engine.

The S terminal is your starter, basically. There's one hot wire that comes in from your battery, and when you engage the starter ignition to START by turning your tumbler, the S terminal allows a connection between the always hot wire and a field winding in your solenoid which causes a magnetic field ( this connection is made by a little spinning disc, which connects the input HOT wire and the one to the field windings [sometimes your starter will go bad sice this disc burns up when you touch it, and it spins in order to get a new connection everything the starter cranks, but sometimes the disc will get too old and burned up and too used, needing replacing]), causing a spin and a plunger to pull in, which in turn pulls in a shifter fork, which pulls the pinion gear into your flywheel while it spins, and voila, you should pull 135-150(?) or so amps to spin your flywheel, crank your motor, and you should go motorvate around like a happy camper.

And, for the love of all Bowties, don't ever ever cross your R terminal with your S terminal, as it will put WAY too much juice into your coil and fry it like an egg. Oh yeah, so if you do have points (which I assume you do, since you had the R terminal connected) you must have the R terminal connected. If you have an HEI, R terminal is always left alone.

Kind of confusing, but that's just a brief explanation of how a typical Delco Remy starter works. By the way, this type of starter is called a Positive-Engagement Starting Motor, used extensively by GM products, produced by Delco Remy. I could go on and on about the other big starters, which are Ford's Sliding Pole Shoe type (which have the "solenoid" on the fender. in fact, it's not called a solenoid, but any parts guy will know what you meant), and Mopar's Gear Reduction starting motor.

[Longhorn Man]

I've always wondered why it is refered to as a solenoid... it's a friggen relay.

[69-350]

Originally Posted by Longhorn Man

I've always wondered why it is refered to as a solenoid... it's a friggen relay.

in a way, yes. but also, no. here, let me elaborate...

solenoid
One entry found for solenoid.


Main Entry: so·le·noid
Pronunciation: 'sO-l&-"noid, 'sä-
Function: noun
Etymology: French solénoïde, from Greek sOlEnoeidEs pipe-shaped, from Greek sOlEn pipe
: a coil of wire usually in cylindrical form that when carrying a current acts like a magnet so that a movable core is drawn into the coil when a current flows and that is used especially as a switch or control for a mechanical device (as a valve

the starter's solenoid is a kind of relay, sorta. But it uses an input of electricity to cause a magnetic field which causes a movable core to be drawn one direction. It moves the starter's pinion gear to move into the flywheel, and it also causes the gearing to turn, using an input of electrical current. Therefore, by definition, it's a solenoid.

[Longhorn Man]

I was refering to the remote mounted ford deal, no mechanical movement on that one.
A solenoid makes movement from electricity, a relay turns on high amps with a low amp trigger.

[69-350]

ahh, you were talking about the "solenoids" on the FoMoCo's sliding pole shoe starters. I can't precisely recall what the correct names of those deals are, I'm sure it'll come to me sometime. Otherwise, you're right, they're not solenoids.

[crazy4chevs]

So what if i wanted to go HEI? would i replace the braided wire from the fusebox with a wire that wasnt a resistor wire? Would i go from the fuse box strait to the HEI

[69-350]

Originally Posted by crazy4chevs

So what if i wanted to go HEI? would i replace the braided wire from the fusebox with a wire that wasnt a resistor wire? Would i go from the fuse box strait to the HEI

that's a good question, as I am considering going to an HEI also, and I would appreciate answers. I can't imagine you would have to, but I could be wrong, also.

[jhow66]

Originally Posted by crazy4chevs

So what if i wanted to go HEI? would i replace the braided wire from the fusebox with a wire that wasnt a resistor wire? Would i go from the fuse box strait to the HEI

1st question-yes.
2nd question--No need to go all the way to fuse box. Just trace the braided wire back to the junction box at firewall. Remove it from the block (to do this unscrew the 3/8" bolt and pull the block out--take a pair of needle nose and mash the metal blade in the block that matches the slot of the braided wire together slightly--grasp braided wire and pull the blade out.) Use at least a # 12 (#10 better) wire and crimp a like blade on one end and install it back in the block ( you will know if it is in ok as it will then not pull back out). Crimp another blade (female) on other end of wire and plug into "Bat" terminal on HEI. Reinstall block and tighten 3/8 bolt. Done.

[VetteVet]

Kind of confusing, but that's just a brief explanation of how a typical Delco Remy starter works. By the way, this type of starter is called a Positive-Engagement Starting Motor, used extensively by GM products, produced by Delco Remy. I could go on and on about the other big starters, which are Ford's Sliding Pole Shoe type (which have the "solenoid" on the fender. in fact, it's not called a solenoid, but any parts guy will know what you meant), and Mopar's Gear Reduction starting motor.
__________________
Wow I'm impressed!

[69-350]

Originally Posted by VetteVet

Wow I'm impressed!

haha, sorry :P
Anything else you want to know about?

[crazy4chevs]

Got it sorted out, thanks guys.