As far as I know, that's the only way to do it. Now, you could reverse the polarity internally, but it would still be the same thing.
-John

 

hmmm shitty

 

What kind of starter? To fit what kind of engine?

Some automotive engines (many Ford V8s and probably Chevy/Chrysler too) were used in marine applications... They had reverse rotation camshafts and hence ran counter-clockwise... so they must have used a reverse rotation starter too. :idea:


You might wanna check it out.

 

What kind of starter? To fit what kind of engine?

Some automotive engines (many Ford V8s and probably Chevy/Chrysler too) were used in marine applications... They had reverse rotation camshafts and hence ran counter-clockwise... so they must have used a reverse rotation starter too. :idea:


You might wanna check it out.

thats no good

I want it so with a flick of a switch it can turn CW and CCW

 

I don't think that will work. why not just put trans in reverse? and then crank the key???? something about having to change the direction of the wind comes to mind

 

Hrmmmmm.... That is a tough one.

 

I remember thinking how similar the motor on my 8274 looked to the motor on my spare Motorcraft starter. Perhaps you could adapt a three-terminal winch-motor to a starter nose for your application? Can't be much harder than bolting a 203 reduction-box to the front of an NP205. Only problem might be motor-speed.

 

I remember thinking how similar the motor on my 8274 looked to the motor on my spare Motorcraft starter. Perhaps you could adapt a three-terminal winch-motor to a starter nose for your application? Can't be much harder than bolting a 203 reduction-box to the front of an NP205. Only problem might be motor-speed.

nope, starter motor grounds through the housing, it's not like a winch that has a dedicated ground terminal for the purpose of reversing.

 

Starter motors are series wound. The only way to reverse them is to take them apart and rewire them.

 

nope, starter motor grounds through the housing, it's not like a winch that has a dedicated ground terminal for the purpose of reversing

You could try to run the wires outside and connect a solenoid pack

 

You could try to run the wires outside and connect a solenoid pack

And when the starter gear engages the ring gear in the flywheel :nuke::nuke:

 

Actually, now that I think about it, they have 1 way clutches in them too... that alone makes it impossible to make it drive both directions, & you can't take it out because you'd spin the starter to way too many RPM once the engine fires before the gear disengaged from the flywheel.

 

nope, starter motor grounds through the housing, it's not like a winch that has a dedicated ground terminal for the purpose of reversing.

I know; that's why I suggested using a winch-motor, not a starter-motor.

In any case, that one-way clutch you mention would be the deal-breaker; you need some way for the ring-gear to turn faster than the starter motor as soon as that motor fires.

Some engines can have starters mount on either side; maybe two starter-motors, one wired to spin backwards, engaging the same ring-gear?

I'm still not sure what the original poster is trying to accomplish, though.

 

You could mount a second reverse rotation marine style starter on the opposite side of the engine.

...as long as it isn't a chevy engine (the oil filter would be in the way).

 

He never said that he wanted to use this starter on an engine. I mean, why would you ever want to spin the engine backwards at the flip of a switch? My guess is that he's up to some more booty fab and is trying to adapt a starter moter to his "contraption". But then again... this is Chiefy we're talking about so who knows.......

 

Yeah, but I don't think anyone mentioned that Chiefy spelled everything correctly on his post!:jester:

 

Holy shit!!!! your right, Jeff. I hadn't even noticed that until you pointed it out. Maybe he only misspells things in the IH forum. :flipoff2:

 

The reverse rotation marine engines I've seen have the starters mounted in the bellhousing facing forward instead of mounted to the engine facing back like normal. They're normal starters, they just engage the flywheel from the opposite direction.

I have seen some reversible brush type motors that have the brushes on a carrier that can be rotated to change the timing. They shift the brushes about 40 degrees or so and that makes the motor run backwards. No rewiring necessary and no switching wires around.

 

The reverse rotation marine engines I've seen have the starters mounted in the bellhousing facing forward instead of mounted to the engine facing back like normal. They're normal starters, they just engage the flywheel from the opposite direction.

I have seen some reversible brush type motors that have the brushes on a carrier that can be rotated to change the timing. They shift the brushes about 40 degrees or so and that makes the motor run backwards. No rewiring necessary and no switching wires around.

I was under the impression that most marine motors are not reverse rotation? My buddy told me this who works on boats in a marina.

 

Don't starter motors turn the other direction south of the equator?:flipoff2:

 

I was under the impression that most marine motors are not reverse rotation? My buddy told me this who works on boats in a marina.

I'm no boat expert, but to my knowledge, most boat engines spin in the standard direction. The reverse rotation comes into play in boats with dual engines to balance out the twisting forces or something like that, so you wouldn't find one in a single engine application.

 

alright heres how you do it. Run 4 switches between the starter and the battery. 2 for positive and 2 for negative.

switch one: Batt + to switch to starter +
switch two: Batt - to swtich to starter -
switch three : batt + to switch to starter -
switch four : batt - to switch to starter +


turn off switch 1 and 2, and turn on 3 and 4 for starter reverse. Right?

This works if you can isolate the ground from the case, but i have no friggin clue on that clutch thing azford brought up.



:shrug:

 

I'm no boat expert, but to my knowledge, most boat engines spin in the standard direction. The reverse rotation comes into play in boats with dual engines to balance out the twisting forces or something like that, so you wouldn't find one in a single engine application.

It all depends what side the builder wants to put the steering wheel. My single engine mopar 440 powered 20' 1974 Century Arabian was RR from the factory. They set them up this way so the prop torque has to lift the driver and the boat will ride more level underway . I had to go to standard rotation so that I could use a roller camshaft and MSD distribtor, and oil pump drive. A 70 qt cooler and two Group 27 batteries were moved to the othe side to help keep the boat level.

 

alright heres how you do it. Run 4 switches between the starter and the battery. 2 for positive and 2 for negative.

switch one: Batt + to switch to starter +
switch two: Batt - to swtich to starter -
switch three : batt + to switch to starter -
switch four : batt - to switch to starter +


turn off switch 1 and 2, and turn on 3 and 4 for starter reverse. Right?

This works if you can isolate the ground from the case, but i have no friggin clue on that clutch thing azford brought up.



:shrug:

You would need to isolate the flywheel as well!!!

 

Starter motors are series wound, meaning the armature and field windings are in series with each other.

If you reverse the polarity of the input power, you reverse the polarity of both coils making the motor still spin the same direction.

To make it spin backwards you have to open it up and bring out the field and armature ends that normally connect together. No need to isolate the starter from ground.

Starter motors make good hydraulic pump motors.