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Join Date: Sep 2010
Location: SE Michigan
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89 Distributor install

I just had my '89 distributor rebuilt and did not take pictures before I pulled it. I'm ready to reinstall the rebuilt unit. I'm at tdc with rotor pointing at #1, but the tech article and pictures show the rotor at tdc pointing just before #1. My dust cover was not returned (yet) so can anyone give some advice where I should set the rotor to point?

Thx
Old 09-04-2017, 03:03 AM
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Set it to #1. You ll have to set it where it will go which may be just before the TDC
Look at the rotor, it has a wider contact compared to earlier motors. The distributor has advance movement built in.
Old 09-04-2017, 05:17 AM
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Others with more experience than I can chime in, but what I recall from my recent and only rebuild is that even if you start with the rotor pointed directly at #1 it will move to the appropriate location as the gears mesh. As you say, that location is slightly advanced from the notch on the dust cover (i.e., #1 firing point).

As you ease the distributor into place, look closely at the rotor and you'll see that it rotates slightly in a counterclockwise direction to just before #1.

Funny, I recall installing and re-installing the distributor about 5 times before I accepted that it was correct.

Good luck, friend.
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Old 09-04-2017, 05:25 AM
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Great! That's what I needed. From what I read the dust cover is not required but at $38 it's not cheap..
Old 09-04-2017, 05:40 AM
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It's in and running smooth first try. .mine rotated clockwise btw. Thx again
Old 09-04-2017, 06:57 AM
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i real into this as well. It seems that at TDC as measured by the notch on the pulley lining up with the notch on the fan housing then the rotor tip "edge" will be just at the notch on the distributor housing and not CENTERED on the notch in the distributor housing.
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Old 09-05-2017, 07:05 AM
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