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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Problem with starter

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Old May 29, 2010 | 08:47 AM
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Problem with starter

Hello Everyone.

I have a 1985 Ford 6.9 diesel F250, and once in a while my starter just spins and clanks. Most of the time it starts just fine, by when it spins, there is no way to start it. I move the shifter to neutral allowing the truck to move just a little, then the starter engages.

Does anyone have a recommendation as to where to start looking?

Keith
 
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Old May 29, 2010 | 09:03 AM
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Sounds to me like the Bendix mechanism of the starter motor:
Starter motor - Wikipedia, the free encyclopedia

Only thing I know to do there is replace the starter motor.
 
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Old May 29, 2010 | 09:17 AM
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Starter

I guess if I pull the starter, I might see the problem. Is the starter easy to get to, and on the bottom of the engine? As you can tell, I know very little.
 
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Old May 29, 2010 | 09:18 AM
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Check the teeth on the ring gear, you may have a bad spot.

It's a little tough to get the top bolt, but doable with extensions and a swivel.

-Enjoy
fh : )_~
 
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Old May 29, 2010 | 09:19 AM
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I know nothing about diesels, sorry.

Many parts stores can bench test starter motors for free, though i don't know how telling those
tests are wrt Bendix mechanisms.
 
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Old May 29, 2010 | 09:22 AM
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I am hoping that I can find a shop to do this. It is so hard to find one that I can trust. How heavy is the starter? I hope I have the strength to hold it.

I almost seems that a few teeth are missing off the flywheel/pressure plate (It is an automatic), and that I do not have to replace that.
 
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Old May 29, 2010 | 09:42 AM
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Originally Posted by Festus Hagen
Check the teeth on the ring gear, you may have a bad spot.
Also possible; with the starter motor removed (10-15 lbs.?) spin the engine around
by hand (use a socket & ratchet on the front crank pulley/dampener) and inspect
the flexplate teeth.

This place is pretty much a self-help forum to avoid paying mechanics for
something that can be done at home. Of course, you're free to take it to a shop
but I'd guess $50-$100 just to look at it and diagnose it.

 
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Old May 29, 2010 | 10:07 AM
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I will look at it myself before I take it in. That is why I ask here first. I just hope it is not too much for me to handle.
 
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Old May 29, 2010 | 11:02 AM
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As stated the starter is light ... I can hold it, you can! (I'm broken)

I pull the glow plugs (or spark plugs on gassers), then use a screwdriver or small prybar and CAREFULLY pry the motor around via the ring gear teeth while checking them out.

If you have someone that can turn the wrench on the crank bolt that is FAR FAR better, It's hard by yourself to do both, turn and watch.

-Enjoy
fh : )_~
 
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Old May 29, 2010 | 03:13 PM
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Festus, I see you have the FWD. I wish I had gotten that too. Mine is 2wd.
 
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Old May 30, 2010 | 01:18 AM
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Wish mine wasn't ... I needed a truck, it fit the bill, the price was right.

-Enjoy
fh : )_~
 
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