<VV> BackFiring through LH Carb

[Mark Durham]

I don't know what timing should be for a 3.1, however, when you goose
it like that the vacuum advance jumps the timing way up and with a 16
degree static timing to start, it may be too much. You might try 12
degrees, or 10, then see.
Your dynamic balancer in good condition? I was at our local clubs
spring tech and tune and a 65 110's dampner could almost be spun on the
inner core it was so loose, we were surprised it was still turning the
fan and alternator, and timing could not be set. Mark durham

Sent from my Windows Phone
From: Bob Gilbert
Sent: 4/29/2012 15:18
To: virtualvairs at corvair.org
Subject: <VV> BackFiring through LH Carb
Hi,



Something odd has just started with my fresh 3.1 build. It will idle happily
all day long and rise smoothly up through 4000 RPM but when I just blip the
throttle , I get backfiring through the driver's side primary carb. All of
the sparking equipment is new; coil,  plugs, wires, Pertronix II etc. The
carbs are fresh from the Carbmeister. I've tried adjusting the static timing
to see if it makes an difference and it doesn't. For now I'm running at 16
BTDC static.



I've set the valves cold at half turn past zero leash.



Any ideas?



Thanks,

Bob



 _______________________________________________
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
 _______________________________________________