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Re: [oletrucks] Timing with a vacume gage

To: "oletrucks" <oletrucks@autox.team.net>
Subject: Re: [oletrucks] Timing with a vacume gage
From: New Mexico Jim <ADvent@thuntek.net>
Date: Sun, 06 Aug 2000 22:45:40 -0600
Why not time it by the steel in the flywheel with the octane selector set on
zero? If you have access to an oscilloscope, it will show the ping pattern on
the screen. Try driving as slow as you can in high gear without lugging it (20
mph?) and floor it. You should be able to hear it ping. Back off until it stops
pinging. There may still be an unaudiable ping, but these old 6 poppers can take
it. My owners manual says a slight audible ping is ok, but don't make it sound
like a diesel, hehe

Eric Johnson wrote:

> Hi all, I remember reading about timing with a vacume gage and it said to
> get the highest reading that you could and then back it off 2" and then lock
> down the dist. I was wondering if this is better than trying to get it to
> ping and then back off till no ping. The reason I ask is that I can't tell
> if my motor is pinging. My exhaust(dual)exits in front of the left rear tire
> and thats all I can ever hear. I have put a huge amount of advance to it and
> I never heard any pinging. I have thought of taking the hood off and
> standing on the apron while someone else drives and I could advance the dist
> untill it pinged, because I would be able to hear the engine and not the
> exhaust. What do ya think. I would prefer not to take the ride on the apron
> but if thats the only way that I will ever hear the ping then thats what
> I'll do someday! Thanks
> Eric Johnson
> Vista,Ca (San Diego)
> 48'Carryall w/56'GMC 270
> 49'Carryall w/Rust
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959

oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959

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