Muncie M20 Input shaft deflection - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-21-2004, 04:11 PM
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Muncie M20 Input shaft deflection

My input shaft deflects about 1/8 inch at the tip.
Is this acceptable? Bearing is fairly new and appears
to be ok.

Thanks.

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Last edited by RogP; 08-21-2004 at 04:51 PM.
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Old 08-21-2004, 04:58 PM
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Perfectly normal, be sure the pilot bearing in the flywheel is OK.

Vince
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Old 08-21-2004, 05:57 PM
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Yep, the pilot bearing is worn and lodged in the flywheel* pretty well. Any tips how to get it out?


*actually it's in the end of the crank, not the flywheel of course.

But that fricken thing is lodged in there pretty tightly.
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Old 08-21-2004, 08:43 PM
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Pack the hole full of wheel bearing grease. then find a dowel (steel or wood) that just fits the ID of the hole. Hammer the dowel into the hole. Hydraulic pressure will force the old pilot bearing out. Works every time.
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Old 08-21-2004, 08:51 PM
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Bob is right on, just use a thick heavy bodied grease. It has worked every time for me.

Vince
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Old 08-21-2004, 08:56 PM
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input

There are many different input bearings made for that transmission. Some of them have a few as 8 rollers in them and others have 12 or 15. Plus then there are different precission grades. If you have a bearing with a low number of rollers in it then it a normal amount of play. If its a more precission bearing with a higher roller count then the bearing might be shot......

Keith
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Old 08-21-2004, 09:42 PM
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Thanks for the dowell tip. I would never have thought of that.
Will try it tomorrow morning.

Don't recall how many exactly how many ball bearings were in the bearing, but it had to be more than 8.
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