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Harry Jackson
Harry Jackson Posted on Feb 08, 2015
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I have put in 2 starter gears in as many days on my 79 shovelhead can't figure out why it looks like gear is not going all the way on ring gear because teeth on starter gear are chipped in front edges how can I adjust this or fix problem

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HawkLore

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  • Posted on Feb 10, 2015
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From Spyder's tech Tips, section entited: Wrenching Tips for Starter Pinion Gear

The starter pinion gear attaches to a splined endshaft on the starter gearbox assembly. The pinion gear is the gear that spins the ring gear attached to the clutch basket. Unless this gear is installed correctly the assembly can come apart and leave you with a pile of aluminum filings and a milled out extension shaft end support!
When installing the pinion gear on the splined endshaft you will install a splined washer, a spring, a flat washer, the pinion gear, a lockwasher, the extension shaft and the bolt that holds the whole thing together - in that order. The extension shaft is locked to the pinion gear by a lockwasher that fits between the gear and the extension shaft itself. IT IS EXTREMELY IMPORTANT THAT THE BOLT IS TIGHTENED ENOUGH TO COMPRESS THE LOCKWASHER FULLY! If the bolt is not tight, the bolt will work loose and eventually cause the pinion gear to become detached from the endshaft spline.
It may be necessary to RED Locktite the screw that holds the endshaft to the starter jackshaft spline. You can use a propane torch (CAREFULLY!) to heat the bolt and break the Locktite bond if you wish to remove the bolt at a later date. Of course, WHENEVER YOU USE AN OPEN FLAME ANYWHERE NEAR YOUR BIKE YOU SHOULD DRAIN THE GAS TANK(S) into a legal and safe container.
The problem is that the endshaft turns in a clockwise direction as the starter is activated. Although the endshaft is held in a bushing, the resistance to turning will cause the endshaft to apply a force in the counterclockwise direction, tending to unscrew the bolt that holds the endshaft in place and compresses the lockwasher. It would be ideal if the endshaft bolt was left-hand threaded, but then it wouldn't mate with a stock starter gearbox endshaft spline.

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Related Questions:

0helpful
1answer

New battery van would click then started one day and starter would not shut off got new starter fine for two days then does same thing and started smoking what is causing this
if there is a relay in the starter circuit, that is suspect
I would remove the starter motor and check 2 things
first is the condition of the teeth on the ring gear
they have a habit of burring over and the pinion gear gets stuck and will not disengage
next is to check is the pinion teeth the right number on the new starter for the ring gear
That is sometimes an issue but I would suspect first a relay , next damaged teeth on the ring gear ( they appear at specific places on the ring gear (90 degrees -120degres and 180 degrees and run for around 6 teeth where the starter initially engages the ring gear
the smoking is from a burnt out starter because when it is stuck in the ring gear , the starter becomes a generator with uncontrolled current generated going straight to ground
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Oct 19, 2015 • 2000 Chrysler Town & Country
0helpful
1answer

Hi there, i am in desperate need of help. My starter went out 3 weeks ago, bought a new one, and had it replaced. Still didnt turn on but had a mechanic fix it by unlocking something that got stuck on the...
Without being able to hear the sound it's hard to point you in the right direction without more details. My first assumption from what you've described would be that the noise is present only while cranking/initial starting. If this is so, there are a few possible reasons for this. 1. The starter that was put is is faulty. 2. The starter was incorrectly installed. (Some starters actually have an alignment and/or shims although it's uncommon on most cars.) 3. The starter that was installed was the incorrect starter for your vehicle. (A lot of vehicles have different starters for automatic and manual transmissions that'll look identical and bolt on but the throw of the starter gear is different and/or the gear's teeth on the starter is different and doesn't properly mesh with the ring gear. This will ruin the teeth on the ring gear on your flex plate/flywheel.) 4. The teeth on the ring gear of your flex plate/flywheel were previously worn because of your old starter and now the teeh on the starter gear are not properly meshing. (This will ruin any starter that you put in.)

Hope this helps. If you can provide any more information, I'd be happy to help you to further narrow down the problem. e.g. Year, make, model, engine size, transmission type of the vehicle and part number of the starter installed. A better description of the noise and conditions of occurrence. e.g. A rough grinding noise while holding the key in the start position followed by a hollow metallic pinging noise or prolonged whining. Etc.
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Dec 30, 2014 • Cars & Trucks
0helpful
1answer

Toro timecutter starter
I think this is going to be like an automotive starter.
You will need to check 3 things.
The ring gear where the starter gear cranks the engine, the starter gear that engages the ring gear, and the overrunning clutch or bendix , which is the springy part that kicks the drive gear into the ring gear.
When you remove the starter from the engine, you will see the drive gear on the end of the starter that was inside the motor.
The drive gear is about the diameter of a half dollar or a silver dollar. it should not be chewed up, it should look like a good gear. Inside the place where the starter attaches, you should see a ring gear, with a flashlight, and those teeth should look good and not chewed up.
On the starter you removed, behind the drive gear and usually inside the starter is the bendix or overrunning clutch , which will push the drive gear into the ring gear when you crank the starter. These parts often fail every few years.
Some people fix them, most people replace the whole starter.
Be blessed.
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May 05, 2013 • Toro 52" 27hp Z Master Zero Turn Lawn...
0helpful
2answers

How do I stop the grinding when starting 2000 Astro Van
Hello Anonymous...

To inspect the teeth on the ring gear requires the inspection to check the full 360 degrees of the ring gear. Looking past the inspection cover to examine a small portion of the ring gear may reveal no issues, but only for that section. Eventually the ring gear will end up positioned above the starter drive gear which will skip across the bad teeth creating your grinding noise when you try and start the Astro,.
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Apr 26, 2017 • 2000 Chevrolet Astro
0helpful
1answer

The starter on my 79 harley classic flx is making a loud grinding sounds...whats the problem and the fix??
This could be cause by a number of things. You could have bad bearings in the starter motor, a bad bearing in the reduction gear housing, a bad Bendix or overrunning clutch, or a bad bearing in the outer primary. Or, you could have a bad starer drive gear or ring gear. There's just no way of knowing for certain until you go into the primary and starter to check it all out.

Disconnect the battery cable and take the outer primary cover off. Inspect the ring gear on the outer clutch drum and the bearing in the outer primary cover. Inspect the teeth on the starter gear to see if they look chewed up. Take the starter shaft out and look at the back end of the shaft to see if the bearing that supports that end of the shaft has went bad. Finally take the starter off and check the bearings in the starter motor. If you disassemble the starter motor, sometimes the brushes can be difficult to get back together. I usually use small 3" or 4" plastic wire ties to hold the brushes back while I reassemble the starter.

Good Luck
Steve
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Jun 14, 2011 • Harley Davidson FLHTCUI Electra Glide...
0helpful
2answers

I want to replace the starter
take off negative cable off battery take cable off starter take 2 bolts off starter put new starter on the same way
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Feb 20, 2011 • 2003 Harley Davidson FXSTD Softail Deuce
1helpful
1answer

1972 shovelhead harley-davidson engine rebuilt
Thirty over is nothing. I just finished a rebuilt on a 1970 model and we went 0.050" over on it. It was already at 30 over and the pistons scored.

Anyway, don't use one of these cheap Chinese made bendix's. Get an ACCEL. They may be made in China but they're better. You can't get good Shovelhead parts anymore.

Now, before you put the outer primary back on, use your hand and operate the fork that shifts the bendix into engagement with the ring gear. Does it engage like it's supposed to. You'll probably have to turn it just a bit. Now, do it again with the outer primary on. Does it still engage smoothly?

Now, here's the cause of most starter grinding problems on a shovel. The starter, ring gear, and outer primary are all out of alignment. The starter housing, the one with the big gear in it is supposed to have alignment pins in it as well as the outer primary. These pins are to ensure that the starter drive and the ring gear are properly aligned with each other. With the starter and outer primary on, you should be able to pull on the plunger of the solenoid and the starter drive engage fully and smoothly. Also don't forget the large brass washer. This keeps the drive from going too far.

If you're worried about low voltage, take the battery to an automotive parts store and ask them to load test the battery. If it drops below 10 volts, buy a new battery.
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Aug 17, 2010 • Harley Davidson FLHT Electra Glide...
0helpful
2answers

When i start my car the starter be grinding do that mean the staeter is bad?
it can do the pinion may be worn, take off the motor and see! do it now beause it might be the ring gear, you see if you ahve a bad pinion then it will dammage the fing gear! if the ring gear is dammaged... you can replace starter,, It may seem fine, but the dammaged ring will grind up the new starter's pinnion, once the ring gear is dammaged then it is gear box out! so look now to avoid more lenghty and expensive repairs!! Have a nice DAy........Bruce.
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Mar 15, 2010 • 1997 Buick Park Avenue
0helpful
2answers

79 Bronco:starter
the shims are not why you go thru starters. Usually its caused because the heat shield was not reinstalled or the wiring is bad. Bad wiring causes the stater to draw lots of amps leading to overheating and damage. If the truck runs go to a repar shop and have them do a starter cranking test. If it passes then I would be looking for a heatshield if missing
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Nov 23, 2009 • 1981 Ford Bronco
1helpful
2answers

Starter wont engage ring gear.
eathier it needs shims or you have a bad flywheel sounds like its free spinning at times pull the starter an turn the ring gear make sure its not missing teeth if not you may need shims
Read full answer
Mar 08, 2009 • 2003 Mazda Mazda6
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New battery van would click then started one day and starter would not shut off got new starter fine for two days then does same thing and started smoking what is causing this

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