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Distributor drive bushing question
#2749016
03/04/20 06:42 PM
03/04/20 06:42 PM
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Joined: Jul 2006
Posts: 4,179
California
mickm
OP
master
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OP
master
Joined: Jul 2006
Posts: 4,179
California
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I replaced my bronze drive gear and the bushing. There is about 50 miles on this, and you can see that the bushing is already scored. The underside of the driver gear is scored as well, I can feel it when I run my finger nail across it. When I installed the new gear, it was well lubed with oil, and I used assembly grease on the contact area between the gear and bushing.
Thing is, my old one was like this too, old bushing and gear. Not long after the engine was together I found it, and the wear seemed significant, so I installed a very thin washer between the two, and all was well from then on.
Should this be wearing like this? Seems that if I have two doing the same thing it is normal, but I wouldn't think this would happen.
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Re: Distributor drive bushing question
[Re: mickm]
#2749081
03/04/20 10:04 PM
03/04/20 10:04 PM
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Joined: Aug 2003
Posts: 43,129
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,129
Bend,OR USA
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Roller cam or not?
How much cam end play with new bushing and how much now?
Last edited by Cab_Burge; 03/04/20 10:05 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Distributor drive bushing question
[Re: mickm]
#2749134
03/05/20 12:50 AM
03/05/20 12:50 AM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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so I installed a very thin washer between the two, and all was well from then on. what about repeating that with a new bushing/same thickness washer?
live every 24 hour block of time like it's your last day on earth
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Re: Distributor drive bushing question
[Re: RapidRobert]
#2749165
03/05/20 07:44 AM
03/05/20 07:44 AM
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Joined: Jan 2005
Posts: 2,540
Milwaukee WI
TRENDZ
master
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master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
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Replace the bushing, have the drive gear faced (remove material to match the thickness of the washer .032”.) Use a precision hardened washer between the two parts. Two similar metals should not be in contact with each other.
Mcmaster Carr #5909K44 $1.10
Last edited by TRENDZ; 03/05/20 07:56 AM.
"use it 'till it breaks, replace as needed"
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Re: Distributor drive bushing question
[Re: TRENDZ]
#2749187
03/05/20 09:39 AM
03/05/20 09:39 AM
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Joined: Oct 2005
Posts: 8,868
Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 8,868
Ontario, Canada
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Replace the bushing, have the drive gear faced (remove material to match the thickness of the washer .032”.) Use a precision hardened washer between the two parts. Two similar metals should not be in contact with each other.
Mcmaster Carr #5909K44 $1.10 BINGO !! Bronze gear against bronze bushing = severe wear. Use a washer from a torrington bearing - any bearing supply house will have them.
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Re: Distributor drive bushing question
[Re: Stanton]
#2749246
03/05/20 12:51 PM
03/05/20 12:51 PM
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Joined: Dec 2005
Posts: 11,542
Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,542
Fulton County, PA
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Hard thrust washer(s). Check, adjust and correct the end play with the washer stack while doing it.
If the results don't match the theory, change the theory.
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Re: Distributor drive bushing question
[Re: Stanton]
#2749427
03/05/20 09:31 PM
03/05/20 09:31 PM
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Joined: Jul 2006
Posts: 4,179
California
mickm
OP
master
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OP
master
Joined: Jul 2006
Posts: 4,179
California
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Replace the bushing, have the drive gear faced (remove material to match the thickness of the washer .032”.) Use a precision hardened washer between the two parts. Two similar metals should not be in contact with each other.
Mcmaster Carr #5909K44 $1.10 BINGO !! Bronze gear against bronze bushing = severe wear. Use a washer from a torrington bearing - any bearing supply house will have them. Yup, that makes sense. Will do that.
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