<VV> Jumping Tach Needle

MarK Durham 62vair at gmail.com
Wed Jun 3 18:30:09 EDT 2015

If the tach jumps and then comes back, it is losing its signal or the
ground is poor. If you also notice a loss of power or a miss, I would
suspect a ground issue in the distributor, or from the distributor to
the engne block.
Mark Durham
Hauser idaho
62 Coupe, Red/Red

On 6/3/15, Tom Hughes via VirtualVairs <virtualvairs at corvair.org> wrote:
> I've discovered my pertronix has gone bad so I've reinstalled the points
> plate and stock coil . Now, while accelerating, the tach needle jumps up a
> few hundred rpm and then quickly  falls back. Happens quite frequently.
> There appears to be a slight miss when it does this. Could fouled spark
> plugs cause this? How about a poorly grounded  points plate? Missing
> condenser on the stock coil? What else should I check?
> Much thanks in advance.
> Tom
>  _______________________________________________
> This message was sent by the VirtualVairs mailing list, all copyrights are
> the property
> of the writer, please attribute properly. For help,
> mailto:vv-help at corvair.org
> This list sponsored by the Corvair Society of America,
> http://www.corvair.org/
> Post messages to: VirtualVairs at corvair.org
> Change your options: http://www.vv.corvair.org/mailman/options/virtualvairs
>  _______________________________________________

Mark Durham
Hauser, Idaho
62 Monza coupe Red/Red 4 speed

More information about the VirtualVairs mailing list