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Re: I Don't Trust Static Timing Anymore

To: Trevor Boicey <>
Subject: Re: I Don't Trust Static Timing Anymore
From: Paul Hunt <>
Date: Mon, 13 Apr 1998 15:54:39 +0000
Trevor Boicey wrote:
> Bob MGT wrote:
> >
> > I had been having some pinging lately on my '71 MGB. A quick check of the
> > static timing showed 7 deg BTDC which is retarded compared to the book spec 
> > 10 deg (for the 18GK engine). I tried several different brands of premium 
> > but the pinging persisted. I finally broke down and bought a timing gun
> > (strobe light) and measured 20 deg BTDC @ 1500 rpm. The book says 15 deg.  I
> > adjusted the dizzy for 15 deg and took it for a test drive. Happy days, no
> > more pinging! I now believe that static timing is only for ballparking from
> > scratch just to get the engine started.
>   Well, if you have the same dynamic timing but a different static
> timing
> then something is "different" in your set up.
>   Obviously the dynamic setting is what matters, but it all should be
> the same.
>   For example, if your mechanical advance springs were weak, you'd get
> too much advance at too low of RPMs. That could explain your
> situation, and changing the static timing is only hiding the real
> problem.

Had exactly this on my roadster - had to set 7 degrees static and it still 
pinked on 
hills when hot.  The thick advance spring had stretched to the point that it 
effective at all.


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