<VV> Jumping Tach Needle

jvhroberts at aol.com jvhroberts at aol.com
Wed Jun 3 18:41:30 EDT 2015

 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.
Hauser idaho
62 Coupe, Red/Red


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