| Re: [GMCnet] Did you know your timing mark can MOVE on Olds engines? I didn't. [message #326299 is a reply to message #326298] |
Thu, 23 November 2017 22:38   |
Richard Denney
Messages: 920
Registered: April 2010
Karma:
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Senior Member |
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They couldn't agree whether it to call it a "dampener" or "damper", so they
compromised on a word they could all agree was wrong, "balancer".
Rick "it's 'damper'" Denney
On Thu, Nov 23, 2017 at 10:18 PM Rob Mueller
wrote:
> Bob,
>
> Looks like Olds parts guys didn't agree with you.
>
> :-)
>
> Parts Book 78Z Page 8-4
>
> ENGINE
>
> 8.005 CYLINDER BLOCK, CRANKSHAFT AND OIL PAN (Cont.)
>
> Key 230 260 Part Number
> 22 1 1 400133 BALANCER ASSY.-crankshaft (1973)
> 22 1 1 417142 BALANCER ASSY.-crankshaft (eff. w/1974)
>
> Regards,
> Rob M.
> The Pedantic Mechanic
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
> USA '77 Kingsley - TZE 267V100808
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Bob
> Dunahugh
> Sent: Thursday, November 23, 2017 7:40 PM
> To: gmclist@list.gmcnet.org
> Subject: Re: [GMCnet] Did you know your timing mark can MOVE on Olds
> engines? I didn't.
>
> It's not a balancer as commonly referred to. But a harmonic dampener. It's
> used to reduce the harmonic that occur at certain RPM
> ranges in the crankshaft of internal combustion engines. That's why the
> outer steel mas is mounted on rubber. Run without one. The
> crank will break. ( GENERALLY ) The heavier the crank. The larger the
> damping mas. Bob Dunahugh
>
>
> ________________________________
> From: Bob Dunahugh
> Sent: Wednesday, November 22, 2017 6:01 PM
> To: gmclist@list.gmcnet.org
> Subject: Did you know your timing mark can MOVE on Olds engines? I didn't.
>
>
> 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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--
Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com
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