<VV> '69 engine misfire?

[Dennis Pleau]

Check the vacuum advance.  May have a leaking diaphragm.

dp

-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Michael Kovacs
Sent: Monday, December 08, 2008 4:21 PM
To: VV
Subject: <VV> '69 engine misfire?

'69 110 PG 172,000 miles, never had heads off, doesn't smoke or use
excessive oil.  Starts instantly. 



 Problem is a slight back fire when cruising. This is a mild series of pops
through the carb(s) and a minor loss of power (to be expected).  A  stab of
the gas will usually bring a moment of hesitation than normal power. The
carbs were rebuilt by me about 2,000 miles ago due to tired accelerator
pumps, they do squirt very well now.

 It has a protonics ignition installed years ago. It seems like a lean
mixture to me, but how? The manifolds are from an non smog engine and the
AIR was removed by PO 30 years ago. I've had this car since the mid 70's.

 I can check almost anything, but with this 20 degree weather, I'd
rather concentrate on the most obvious. I drive it 20 miles to work with no
other symptoms, but it seems much better when hot.
 MIKE KOVACS