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Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. [message #326280 is a reply to message #326271]

Thu, 23 November 2017 08:16

Matt Colie

Messages: 8547
Registered: March 2007
Location: S.E. Michigan

Karma:

Senior Member

BobDunahugh wrote on Wed, 22 November 2017 19:01

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

I will take the moment to both warn you all that this can happen to any engine that has rubber damper installed. That means just about every passcar engine produced since WWII. I have had it happen to new parts on durability engines. If you have a chance check for witness marks. If you don't see them, make some.

And I will take a little more of your time to wish everyone in the great family a Happy Thanksgiving. We are getting ready here and will have the daughter and her family here and have number of four grandsons from our son's side here for the weekend.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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[Message index]

		[GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: BobDunahugh on Wed, 22 November 2017 18:01
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Richard Denney on Wed, 22 November 2017 18:09
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: James Hupy on Wed, 22 November 2017 18:15
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Matt Colie on Thu, 23 November 2017 08:16
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Kosier on Thu, 23 November 2017 12:10
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Larry on Thu, 23 November 2017 12:21
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Ken Burton on Thu, 23 November 2017 11:21
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: BobDunahugh on Thu, 23 November 2017 19:39
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: USAussie on Thu, 23 November 2017 21:16
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Richard Denney on Thu, 23 November 2017 22:38
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: emerystora on Thu, 23 November 2017 22:49
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Kosier on Fri, 24 November 2017 14:15
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: emerystora on Fri, 24 November 2017 15:39
		[GMCnet] Fw: Did you know your timing mark can MOVE on Olds engines? I didn't. By: BobDunahugh on Fri, 24 November 2017 11:17
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Ken Burton on Fri, 24 November 2017 02:47
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: JohnL455 on Fri, 24 November 2017 10:53
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: James Hupy on Fri, 24 November 2017 11:11
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: USAussie on Fri, 24 November 2017 19:05
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Ken Henderson on Fri, 24 November 2017 19:19
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: James Hupy on Fri, 24 November 2017 19:28
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Matt Colie on Fri, 24 November 2017 20:19
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: JohnL455 on Fri, 24 November 2017 12:48
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: James Hupy on Fri, 24 November 2017 19:11
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: USAussie on Fri, 24 November 2017 19:59
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: Ernest Dankert on Fri, 24 November 2017 20:32
		Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. By: James Hupy on Fri, 24 November 2017 20:38

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