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Q: Why do gear teeth mesh only 50 percent of time on starter?
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What is the difference gear and pinion?

pinion is a gear with a small number of teeth designed to mesh with a larger gear. {m@Gn3T0}


Why is it a screeching noise when you start your car?

That would be a bad starter gear mesh. Gears not aligning correctly causes this. The most common reason for bad starter gear alignment is worn out gear on the starter or starter ring gear. One or both will need to be replaced soon.


What is the difference between gear and pinion?

pinion is a gear with a small number of teeth designed to mesh with a larger gear. {m@Gn3T0}


Why would a new starter in a 73 Chevy pickup truck make a noise like metal slamming against metal?

You may need to shim the starter. When you turn the key the gear from the starter is slamming into the teeth on the flywheel. Did you get any shims with the new starter? If not you may need to buy some. You just want to shim it out just enough where the teeth from the starter and imbedded into the teeth on the flywheel. Not too much and not too little otherwise you will chip or break a tooth off. You are trying for a good mesh of teeth to teeth.


How do know if your starter cylinoid needs a shim?

You shim the starter motor if there is inadequate clearance between the starter drive and the ring gear. You can check the clearance by prying the starter drive out to the ring gear with a screwdriver to see if the gears mesh properly.


Where is the starter motor located and what does it look like?

Most starter motors are located in the bell housing. They mesh with the ring gear fitted to the engines flywheel. Starter motors are cylindrical in shape and are about 9" in length


84 350 4x4 instaled new starter and it makes a grinding sound sometimes tried shimes still does it any thoughts?

Probably ought to get up in there with a flashlight and see what's going on. Check for chipped or worn teeth causing problems with alignment. You can pry the starter drive gear out with a screwdriver and manually mesh it with the ring gear to see what kind of backlash you're dealing with. If they're still tight, you might need more shim. make sure that your starter has the correct amount of teeth and the spaces are right


What is the difference between a gear and an involute spline?

gears mesh with gears both have external teeth where as spline meshes with internal teeth .both are used to transfer torque.


Why are gears called spur gears?

Spur Gears: a gear having straight teeth cut on the rim parallel to the axis of rotation.Gears: a disk, wheel, or section of a shaft, having cut teeth of such form, size, and spacing that they mesh with teeth in another part to transmit or receive force and motion.***A spur gear is a type of gear***


Your Chevy starter does not engage it spins but will not engage any suggestions It is a mini sbc starter.?

Could be the starter drive is not engaging or perhaps you're using the wrong holes for your flywheel. If you have a 153 tooth ring and have the starter in the 168 tooth position, the gears would not mesh. Did it ever start? if it did ,most likely the starter drive is broken, or the pinion ,or flywheel are stripped of their teeth. Bendix is broken, Starter too far from ring gear, broken bendix throwout fork.


What makes a Yamaha virago 920 starter kick in and out when starting?

they were horribly designed and when the starter turns it spins another gear that is on this sort of twisted gear. the spinning action of the starter forces the gear to slide forward as it is turning and mesh with the main big gear (whatever its called) that turns the engine. however somebody felt that it wasnt important for the gear to mesh ALL THE WAY and rather it only catches the edge of the gear causing it to shred the heck out of both gears. good news is they are both replaceable with some work and there is a lovely magnet right beside these gears that can catch all the shrapnel hmmmmmmm.... I wonder why it was placed there. anyways my '83 virago does the same thing and i have yet to get it fixed. im gonna try some shim kit that's supposed to allow the gear to slide further and mesh better. just search "virago starter shim kit fix" or something related


What are the main causesof the failure of fly wheel?

When the "bendix gear" is engaged by the starter, sometimes if all is not aligned properly, the gears will not mesh causing gear tooth breakage. also excessive heat can cause warpage.