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8N generator bushing replacement

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8N in VT

12-04-2007 16:25:27




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I bought a rebuild kit for my 8N generator. Had a question though before I pull it apart. The rear bearing is a bushing. What's the right way to get the old bushing out?

While I got ya; The amp guage shows a draw when starting but then goes to zero. It never indicates +. I don't have a charge problem but, why wouldn't the gauge show that it's actually charging? Just curious. Thanks!




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jim weggenmann

12-05-2007 15:04:41




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 Re: 8N generator bushing replacement in reply to 8N in VT, 12-04-2007 16:25:27  
This is called hydraulicing out a bushing using some playdo from the kids or red modeling clay works a lot better than grease use this all the time for removing pressed in steel liners in mill fixtures



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8N in VT

12-05-2007 05:33:33




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 Re: 8N generator bushing replacement in reply to 8N in VT, 12-04-2007 16:25:27  
Thank you all. Great ideas. I'll check them out today. Appreciate all your help.



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Bill/N.E.Oh.

12-04-2007 17:24:48




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 Re: 8N generator bushing replacement in reply to 8N in VT, 12-04-2007 16:25:27  
Check me if I'm wrong. The amp guage should read zero, should it not? Its not a volt guage. Should it not show a discharge when a load is put on it? It should show a + or charge when the regulator kicks in to bring the bat. up to full charge. If it indicated a charge all the time, The battery would boil over



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Bob

12-04-2007 17:10:37




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 Re: 8N generator bushing replacement in reply to 8N in VT, 12-04-2007 16:25:27  
1.) One way to remove a generator bushing in a blind hole is to use a tap to thread the inside of the old bushing, then screw a stud into the threads. Drop a sleeve, or even a socket (wrench) of the appropriate size over the stud, then a washer, and, lastly, thread a nut down the stud, and tighten it, so it pulls the bushing out.

2.) Your ammeter is NOT wired correctly.

Third Party Image

One side connects to the battery cable, at the stater solenoid, and ALL electrical loads, PLUS the charging system connect to the other side.

If it is still an "inductive ammeter", the wiring passing through it is connected effectively in the same manner.

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ZANE

12-04-2007 19:38:31




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 Re: 8N generator bushing replacement in reply to Bob, 12-04-2007 17:10:37  
That tapping the bushing is an excellent way to remove a bushing in a blind hole.

Another way is to fill the hole with the bushing in it with implement grease and then using a steel bar of just about the same OD as the ID of the bushing give the grease a good whack and it should pop out part way. Then refill the hole and place the drift in the hole and whack it again.

First time I ever saw that trick done I was 16 years old and was doing some clutch repair on my old '38 Ford and a man who grew up with a wrench in his hand performed that trick to get the pilot bushing out of the flywheel. One lick was all it took. I've repeated it many times over the years.

Zane

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Bob

12-04-2007 19:47:29




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 Re: 8N generator bushing replacement in reply to ZANE, 12-04-2007 19:38:31  
I often use that rod-and-grease method with clutch pilot bushings.

HOWEVER, I'm a bit leary of using that method with the thin casting of a generator endbell, not to mention an aluminum one!



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Jack - Illinois

12-04-2007 17:06:36




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 Re: 8N generator bushing replacement in reply to 8N in VT, 12-04-2007 16:25:27  
third party image

Check the wiring on the ampmeter to the battery wire on the voltage regulator. You probably have a replacement ampmeter that has 2 screw lugs on it rather that the original with the slide through loop (no physical connection). I'm guessing that someone rewired it and got the voltage regulator BAT wire hooked to the wrong side of the ampmeter.

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