[T3] a stumper!

Keith Park topnotch at nycap.rr.com
Sun May 16 17:14:55 PDT 2021

Ill check these, the distributor I rebuilt to make it "Ray worthy" when
doing the initial tuning,
Could still be an issue in there.
Any thoughts about the trigger points also having an issue like this?



Topnotch Restorations
topnotch at nycap.rr.com
71 Squareback  “Hothe”
65 Notchback  “El Baja Rojo”
93 RX7  “Redstur”
13 Subaru Outback "Blendin"

-----Original Message-----
From: type3-vwtype3.org <type3-vwtype3.org-bounces at lists.vwtype3.org> On
Behalf Of Jim Adney
Sent: Sunday, May 16, 2021 6:40 PM
To: type3 at vwtype3.org
Subject: Re: [T3] a stumper!

On 16 May 2021 at 9:06, Max Welton wrote:

> Maybe a harmonic that shows up in that range and is making some 
> connection unhappy?

That's what I was thinking. Maybe the points bouncing? Perhaps just try a
different set of points, or I have different points with stronger springs
that I would only recommend for someone who wants to run at unusually high
RPMs. You could try one of those, just to see if it changed anything. If it
pushes the miss to a higher RPM range, then you've found your problem.

And check the ground strap on the points plate, to make SURE it's working.

Finally, note that the points plate has to rotate to advance the timing as
the RPM increases. As it rotates, the points wire has to flex and this can
cause problems if the wire inside the insulation is broken. You should also
check to make SURE that no part of the points comes close to shorting to
ground as the points plate rotates. (IIRC, there's a screw there that can be
VERY close if the wrong (too long) screw has been installed somewhere.

Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA

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