Re: My starter spins but but doesn't engage the fly...
Starter, take out and try across battery and it should whirr and jump out as if connecting with flywheel, if no spray the whole starter with WD40 inside and leave overnight. worked for me.
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Either a faulty/incorrect starter solenoid or the starter is the wrong size.
Check by measuring if the dog wheel actually swings out to engage with the fly wheel. Are there any teeth missing/worn on the starter ring gear.
Starter soups but doesn't engage. Clicking sound: you hear it spinning with a click sound before it starts spinning. No grinding sound. The mechanism to engage the fly wheel could be faulty, probably it is seized, or battery doesn't have enough power to make the solenoid fully pull mechanism (check battery amps charge if low. You may need to look at the starter as someone turns the motor over and make sure it's engaging all the way to fly wheel.
Sometimes you may need to Shem or file down where the two bolts go into the starter too get it far enough into the starter casing to get it to engage.
Walld"
the problem is that it is making contact in the solenoid housing before the pinion is engaged in the ring gear
have that measurement checked again as the pinion has to be fully extended before the contacts are closed to spin the starter armature
Safety first!--Make sure you're in park & brake on-- Try shorting across the starter terminals with a screwdriver,if the bendix kicks in & nothing spins,remove the starter & put in bench vice ,(or hold down securely), & jump with cables.--REMEMBER POLARITY--If the starter spins you are in deep *******---something in the motor is probably locked up.(If the starter doesn't spin get a new one.)
the starter solenoid is staying engaged internal. replace starter solenoid or starter you'll be fine. good-day. If it makes a rattle (clak.clack.clak) before it catches it's just worn teeth on
the fly wheel and it goes away. If the starter isn't engaged by the selonoid but it has
power it's defective. If that still isn't it it's either the wireing to the
starter or the switch itself
The starter sprocket wheel is thrusted into engaging the flywheel by a big solenoid. That solenoid is integral part of the starter motor. If the starter turn itself but it doesn't turns the engine then either it was incorrectly installed or the thrust solenoid is defective.
Simple test: take out the starter, attach it to a bench, connect to it thew power cables from a battery (the minus one to the body, the plus one to the big connector bolt) then short the big connector bolt to the small one with a screwdriver - the solenoid should activate, the sprocket should be thrusted forward and the motor should start spinning it. If that doesn't happen then the starter you just bought is defective, replace it. If that happens the starter was incorrectly installed on the engine. Reinstall it correctly.
The most common cause of a "No Crank" condition is a bad starter solenoid. The starter solenoid is a large coil that, most often, sits on top of the starter and engages the Bendix drive with the flywheel and sends power to the starter. If the internal coil goes bad, the solenoid won't engage the Bendix or turn the starter on. This condition will not cause any noticeable noise other than the clicking.
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