<VV> Looking for advice - GB running weirdly.

[Frank DuVal]

Right, throw in a points plate with known good points and condenser and 
recheck operation. That's my only test for failed Pertronix.

Frank DuVal

On 5/19/2025 7:23 PM, tony underwood via VirtualVairs wrote:
> Have you checked the distributor mechanical advance curve?   As in, 
> does it drift around?   Likewise, have you tried driving it with the 
> vacuum advance disconnected?   I'm thinking maybe distributor 
> issues... just throwing it out there.
>
>
> What do you mean by "tip-in"?
>
>
> Between you and me, I don't really trust Pertronics stuff, seen too 
> many of them dead on peoples' garage shelves.   Then again, there's 
> hoards of Corvair engines out there running the streets with the 
> factory points/coil ignition system and doing just fine.
>
>
>
> tony..
>
>
> On 5/17/2025 4:36 PM, Andy Kinzelman via VirtualVairs wrote:
>> To all,A local guy has joined the Corvair fraternity - 63 Greenbrier. 
>> He was having drivability issues; at tip-in the engine would fall 
>> flat on it's face.  He's replaced the carbs, plugs, and wires - all 
>> from Clark's.  The van had a Pertronics looking unit; but it does not 
>> have full 12 volts (I don't know offhand whether its a I or II).  It 
>> started easily and ran smoothly.
>> Today we replaced the leaking balance tube hoses and the the base of 
>> the leaking fuel pump.  Went through the carb initial set-up and 
>> balancing.
>> Timing (steel pulley) was very advanced (guessing 25° BTDC); reset to 
>> 13° BTDC. Engine now much harder to start; so reset to about 20°BTDC.
>> While driving, it still has the same tip-in issue.  I don't think 
>> it's the carbs (because it's acting the same way it did with the old 
>> carbs).
>> I'm unsure how to proceed - anybody have any 
>> recommendations?Thanks,Andy K.Wisconsin
>>
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>