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Re: [GMCnet] Route 66 Rolling Rally. [message #252587 is a reply to message #252586] Wed, 18 June 2014 22:37 Go to previous messageGo to previous message
dwayne jacobson[1] is currently offline  dwayne jacobson[1]   United States
Messages: 345
Registered: July 2009
Karma:
Senior Member
Brand new Dick Paterson distributor.. However maybe it is off. Will look
at this.
The clicking noise first sounded like an exhaust leak. Not.



On Wed, Jun 18, 2014 at 8:30 PM, Carey Bryan wrote:

> Duane,
>
> Another bunch of my suggestions which will be wrong, so you can eliminate
> them and find out what will really be the problem.
>
> Here goes: Could the advance plate inside the distributor be hanging up?
> Too much advance causes knocking, thus the rattling noise? Or the
> distributor is set too far advanced (only if it has recently been fooled
> with)? Or the distributor hold down bolt is loose and the distributor has
> rotated, giving too much advance? What about the advance weights, are
> they rusted to their pivots stuck advanced, giving that rattling sound from
> knocking? They should snap shut when you advance them manually with the
> engine off. Check the advance springs, one per weight. Total of two inside
> the distributor. If you can somehow get it to high rpm with high torque,
> if the noise is spark knock, it shouldn't be as bad, as high rpm means the
> engine can tolerate more advance. Put it into second gear and see if the
> rattle disappears at the same road speed, even though you asking for more
> torque to equal the torque in drive gear. If so, suspect some problem
> with the advance mechanism, whether centrifugal or vacuum. You might pinch
> off
> the vacuum advance line, therefore disabling it, and it would give you ten
> degrees less advance. It might give less spark knock, but I think it would
> be far better to have it all working right.
>
> Probably you have an electronic distributor and all this helpful advice is
> worthless.
>
> Eliminating that, I just don't know. If it isn't spark knock, it sounds
> expensive, but you are due for a break.
>
> Best,
>
> Carey
> --
> Carey from Ennis, Texas
> 78 Royale, 500 Cadillac, Rance Baxter EFI.
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--
Dwayne Jacobson
White Rock BC
Cell: 604-644-8090
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