Distributor a little worn

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Mar 13, 2018 | 10:56 PM

#21

Big2Bird

Le Mans Master

Joined: Dec 2006

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Just talking out loud, but I "assume" bad tach cables and heads are the culprit here.
I have taken apart old ones with the nylon button shows little wear.
(Yes, I know this one is earlier).

Mar 13, 2018 | 11:37 PM

#22

DarrenX33

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Joined: Mar 2016

Posts: 128

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From: St. Charles IL

Quote:

Originally Posted by Big2Bird

Just talking out loud, but I "assume" bad tach cables and heads are the culprit here.
I have taken apart old ones with the nylon button shows little wear.
(Yes, I know this one is earlier).

Are you speaking of my distributor? If so can you elaborate?

Mar 14, 2018 | 12:16 AM

#23

Big2Bird

Le Mans Master

Joined: Dec 2006

Posts: 8,837

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Quote:

Originally Posted by DarrenX33

Are you speaking of my distributor? If so can you elaborate?

Not really. The issues with the earlier units like yours is why GM added the button later.
But still, there would have to be a fair load on that gear to cause the thrust wear.

Mar 15, 2018 | 01:49 PM

#24

lars

Tech Contributor

Joined: Aug 1999

Posts: 14,375

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From: At my Bar drinking and wrenching in Lafayette Colorado

Jeff & all -
Most distributors I see with wear like that have been installed in the stock, factory "clocking" orientation, which puts the tach cable in a heckuva bind. The wear problem, after proper repair, is solved by installing the distributor in the "service bulletin" orientation to straighten out the tach drive cable. Anyone needing this info can e-mail me for my "Distributor Installation" tech paper.

Lars

Mar 15, 2018 | 02:09 PM

#25

Big2Bird

Le Mans Master

Joined: Dec 2006

Posts: 8,837

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Quote:

Originally Posted by lars

That makes sense. Otherwise, there should not be that large a load on the gears.

Of course the steel gear against the soft cast iron is a router bit at best.

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