| Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. [message #326270] |
Wed, 22 November 2017 18:06 |
Sammy Williams
Messages: 522
Registered: August 2010
Karma:
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Senior Member |
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If your timing mark is moving (due to rotating outer ring) you really
should replace your harmonic balancer. :)
Sammy
On Wed, Nov 22, 2017 at 6:01 PM, Bob Dunahugh wrote:
> When I went to set the timing to the proper 8 degrees of advance. It ran
> terrible. Called Ken Henderson. He said that the outer part of my harmonic
> dampener had rotated. I DID NOT know that the Olds unit could do that. I
> was aware of other engine. So if at some time your timing was set to a
> moved mark. It could be affecting the timing. Thus reducing mileage. I'm
> thinking that I may have set my timing retarded the last time due to this.
> There are indexing marks that GM did when new. New one is $42. Bob
> Dunahugh 78 Royale
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