<VV> Jumping Tach Needle

[jvhroberts at aol.com]

 I've also had this trouble due to a crack in the tach's PC board. Soldering across the crack fixed it. 

 

John Roberts
 

 

-----Original Message-----
From: MarK Durham via VirtualVairs <virtualvairs at corvair.org>
To: Tom Hughes <corvairdad at gmail.com>
Cc: VirtualVairs AA <virtualvairs at corvair.org>
Sent: Wed, Jun 3, 2015 5:30 pm
Subject: Re: <VV> Jumping Tach Needle


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