The following is based on... all new parts and the engine has never been started in the car before now. 302SBF, R21 turbo gearbox, GTD adapter plate, GTD supplied flywheel and starter.
When I,
(1)apply only the one +12V lead from the battery to the large lug on the solenoid that is NOT going to the starter motor via the short braid going through the motor case and,
(2) jumper +12V to the small spade connector on the soleniod just long enought to start the starter motor turning. This is the one that would be attached to the momentary start posistion on the key switch.
(3) with NO other connections to anything. This more or less eliminates a wireing problem
(4) The starter will continue to turn over the engine until the battery connection is removed from (1).
I think that the starter gear is jamming into the flywheel ring gear and the small return spring in the solenoid can't pull it out eventhought there is no longer 12v applied to the solenoid coil. This would keep the solenoid main power contacts closed and continue the 12V battery power being applied to the starter motor.
This starter is the type that has a finger going up throught it's case and it is used by the solenoid to pull the starter gear into the flywheel. Since the main solenoid power contacts are linked to the finger and the finger is coupled to the starter shaft if the shaft can't retract from the flywheel the main solennoid contacts can't open thus the starter will not stop turning.
I think it is possible that the gear on the starter is not the correct one that matches the flywheel gear.
Do any of you GTD guys know which flywheel and starter is supplied by GTD. I thought it was a Mercury Capri setup but a 1985 V6 capri starter, new from parts store, will not fit up to the gearbox to engine adapter plate.
The starter I have fits just right except that the teeth on the NEW flywheel allready are showing a increaseing gap between them.
I think that the gear on the starter is the wrong one, too large in diameter and too many, and too fat, teeth. If I knew which parts were correct I could get a another starter and try my theory.
You Guys helped me fix my stuck gearbox a few weeks ago, How about one more helping hand?
I forgot to say that this starter is from Germany. The gear on it is 1 1/8" in diameter and has 9 teeth on it.
[ January 25, 2003: Message edited by: Howard Jones ]