Re: [T3] Dwell and Timing

["David Martinez" <wfoh8x9@msn.com>]

Ok , I understand, what I don't understand is the (Points Gap) diffrence 
between the feeler gauge method. I used the specified feeler gauge (.16) but 
my dwell was only about 33. That is why I went ahead and used the dwell 
meter and forgot about the gap to get the timing light aligned to 7 1/2 
BTDC. Do I make sense?, I am about to test it so I will let you know how it 
runs. I am also using 89 octane gas so I might buy a booster tomorrow if the 
pinging persists.

Thanks Keith

David
67 Baltic Blue Fasty
Aberdeen Proving Ground, MD


----- Original Message ----- 
From: "Keith Park" <topnotch@nycap.rr.com>
To: <type3@vwtype3.org>
Sent: Saturday, September 11, 2004 5:32 PM
Subject: Re: [T3] Dwell and Timing


> Point gap affects dwell and timing. if your timing is spec than having the
> dwell off a bit wont affect detonation.  If your detonating and your 
> timing
> is stock check and make sure your not running lean or more importantly 
> that
> your using the correct octane gas for the car, which is 92 OCT in the US
> with that car.
>
> If its still knocking and pinging then somebody probably fly cut the heads
> and didnt add shims to lower the compression ratio... common problem.
>
> Keith
>
> >
> > I want to be clear on some simple timing procedures involving, Dwell, 
> > RPM,
> > Advance. I started tweaking my timing this weekend due to heavy pinging
> > during load on my 67 Fasty. It started and idled fine, I had set the
> timing
> > @ 7 1/2 BTDC with the engine warm and the vaccum hose disconnected but
> once
> > it warmed up I experienced heavy pinging so today at a local swapmeet I
> got
> > a dwell meter. I had set the dwell to specification with a feeler gauge
> but
> > once I checked it with the meter I got today I noticed that according to
> the
> > TM I was setting it at about 33. The TM specified 42-54 so I forgot 
> > about
> > the feeler gauge method and decided to go with the reading on the meter 
> > as
> > the engine was running. After I did this I rechecked the timing and set 
> > it
> > at 7 1/2 BTDC, the RPM at 850 RPM between synching the carbs. I have not
> yet
> > tried it but I am in a bit, can anyone shed some light on this for me.
>
>
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