2nd gen starter in a 12a?
06-27-11, 06:07 PM
#1
2nd gen starter in a 12a?
So Ive told by a couple people that you can fit a gear reduction 2nd gen starter in a 12a engine...... i have a bridgeport and need to turn fast to make for easier starting. My family owns a starter and alternator repair shop and we can order them brad new. In our book there are2 different kinds of starters..... a 12 tooth and a 13 tooth. The 12as are 11 tooth so which one will fit!
06-27-11, 08:27 PM
#4
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My advice would be to also run new, extra-fat battery cables, as our thin, aging japanese stuff is minimal at best. I like to run 6 gauge for battery to ground and battery to solenoid, and although I have never taken the time, I bet you could see some small improvement from a larger piece of wire from the solenoid to starter. Just my 2c, Ben
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07-19-11, 01:04 PM
#9
well how about this one...... it doesnt work. it turns it over fine and meshes good but it will not start it. I tried rollong the engine over manually via the alt. and it was still kicked into the flywheel and as soon as i turned in clockwise just a smidge the drive kicked back out. So it's sticking in the flywheel and wont let the engine spin any faster than the starter....... I got the 12 tooth gear reduction.
11-05-11, 12:48 PM
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I think it's because the smaller diameter flywheel on your 12a. i was just going through starters, i had one off of the engine that's in my car now, a 13B that i don't know for sure if has 74-75 housing and no idea what rotors, or maybe 84-85 housings. The starter on it has a completely different armature in it, different diameter, and my 12a starter from my old engine has 2 ground brushes, where the 13b has 2 fields and 1 ground. There was no way to combine the two starters though because the armatures were different diameters so the brushes didn't make contact. A gear reduction isn't good when you need rpm like the rotary does. I was having starting problems and with my battery voltage down to 12.4 volts, it wouldn't spin fast enough to get compression. With a jump, compression jump right up and i was able to get it running. Could you give me the part numbers for the 12 and 13 tooth starters?
01-16-12, 11:14 AM
#21
I guess I have a small update I can add to this thread. I found an FC starter in a box. I'm going to hook up a battery to watch it spin. If it jumps out, spins well and pops back in like it should, I'll test it in something. Probably a 74 bellhousing just for fun/just because I can.
01-16-12, 05:02 PM
#23
Old [Sch|F]ool
I've used just about every possible combination of engine, transmission, and starter in the year range '79-92. They all work together as long as they are nonturbo manual trans. Automatic is different and turbo is different.
