<VV> Jumping Tach Needle
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.
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.
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62 Monza coupe Red/Red 4 speed
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