I am stuck and i can't figure it out, please read and help.
Background:
I am building an 87' 325i. I Built a 2.7L stroker using the eta bottom end and everything else from the "i" motor. ]Car was an auto and i am swapping in a getrag 260 5spd also. The 5 speed came from a 325i, so the motor has an "i" flywheel and "i" starter, i figured they should match up versus using the "e" starter.....
I bypassed the neutral safety switch at the relay connecting the black/yellow wire with the black wire. I tried the other way with the wires at the neutral safety switch but had the same results.
The Problem:
I turn the key, and the starter solenoid clicks, the gear moves forward, and nothing happens but the lights dim. i've tried it with a good battery, booster cables, a booster box, u name it. I release the key and i hear the gear retract into the starter. Motor turns fine by hand, no hang ups or anything unusual...thinking i should pull the plugs and try to see if it spins with the starter. I removed the starter and took it to advance and had them test it. It worked perfectly. It spun and was pulling the correct amount of amperage. So i reinstalled it and removed the engine ground cable. cleaned all contacts, cable is in good condition, no cracks in casing or anything. Reinstall and the same issue, i do not have the drive shaft in or connected, i don't know if that has something to do with it, is there a ground on the rear? it seems as if there is a bad ground somewhere, but where could it be? if the solenoid is working then the power is working, right? I'm at a loss and have no clue where to start, i went over the etk and i went over the entire starting system, if anyone has any ideas please let me know, i am desperate to get this going.
Thanks.
Background:
I am building an 87' 325i. I Built a 2.7L stroker using the eta bottom end and everything else from the "i" motor. ]Car was an auto and i am swapping in a getrag 260 5spd also. The 5 speed came from a 325i, so the motor has an "i" flywheel and "i" starter, i figured they should match up versus using the "e" starter.....
I bypassed the neutral safety switch at the relay connecting the black/yellow wire with the black wire. I tried the other way with the wires at the neutral safety switch but had the same results.
The Problem:
I turn the key, and the starter solenoid clicks, the gear moves forward, and nothing happens but the lights dim. i've tried it with a good battery, booster cables, a booster box, u name it. I release the key and i hear the gear retract into the starter. Motor turns fine by hand, no hang ups or anything unusual...thinking i should pull the plugs and try to see if it spins with the starter. I removed the starter and took it to advance and had them test it. It worked perfectly. It spun and was pulling the correct amount of amperage. So i reinstalled it and removed the engine ground cable. cleaned all contacts, cable is in good condition, no cracks in casing or anything. Reinstall and the same issue, i do not have the drive shaft in or connected, i don't know if that has something to do with it, is there a ground on the rear? it seems as if there is a bad ground somewhere, but where could it be? if the solenoid is working then the power is working, right? I'm at a loss and have no clue where to start, i went over the etk and i went over the entire starting system, if anyone has any ideas please let me know, i am desperate to get this going.
Thanks.
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