<VV> 66 Corsa Runs well... for the first 2 minutes, then bogs down

[Joe West]

It looks like regardless of what the issue is; it is highly likely that
rebuilding the primary carbs would be a good first step.
It just so happens that 4 complete carburetor rebuild kits came with the
car... so I'll pull the primaries this weekend and rebuild them and we'll
see what happens.

Thanks for the inputs everyone... I'll let you know how this turns out.

Joe



> ----- Original Message -----
> From: "Joe West" <joew at diveaz.com>
> To: "Harry Yarnell" <hyarnell1 at earthlink.net>; "VV"
> <virtualvairs at corvair.org>
> Sent: Tuesday, May 03, 2005 7:41 PM
> Subject: Re: <VV> 66 Corsa Runs well... for the first 2 minutes, then bogs
> down
> 
> 
>> Hi Harry,
>> 
>> If I block the chokes closed so that they are open roughly 3/16-1/4" on
> each
>> primary carb... the car runs PERFECTLY for as long as I care to drive it.
>> 
>> If I let the chokes open fully... car runs crappy
>> 
>> If I close them again... car runs PERFECTLY
>> 
>> If I open them again... car runs crappy.
>> 
>> So... whatever this problem is; the car likes to run with the chokes in
> the
>> almost closed position and runs like a DOG when I allow the chokes to
> open.
>> 
>> Thanks for the idea... it moved us further down the troubleshooting line.
>> 
>> Joe
>> 
>> 
>> On 5/3/05 3:04 PM, "Harry Yarnell" <hyarnell1 at earthlink.net> wrote:
>> 
>>> Sounds like fuel. Maybe a partially clogged sock. Or stones. What
> happens
>>> when you partially close the chokes manually by some mechanical
> ingenuity?
>>> 
>>> Harry Yarnell
>>> perryman garage and orphanage
>>> perryman, MD
>>> hyarnell1 at earthlink.net
>>> 
>>> ----- Original Message -----
>>> From: "Joe West" <joew at diveaz.com>
>>> To: "VV" <virtualvairs at corvair.org>
>>> Sent: Tuesday, May 03, 2005 5:50 PM
>>> Subject: <VV> 66 Corsa Runs well... for the first 2 minutes, then bogs
> down
>>> 
>>> 
>>>> Hi,
>>>> 
>>>> I'm working on my son's new (to him) Corsa and after fixing things like
>>> oil
>>>> leaks, loose distributor causing incorrect timing and the like... I
> feel
>>>> like I am close to having it running nicely... here's the final
> problem.
>>>> 
>>>> 
>>>> If I start the 140 Corsa cold and drive it... it is AWESOME!  Excellent
>>>> power, incredible throttle response... I'm not kidding when I say it is
>>>> incredible... for the first 2 minutes.  After it warms up (not even
> HOT,
>>>> just warm), it starts bogging when I hit the accelerator UNLESS I mash
>>> into
>>>> the secondaries then the throttle response is better, but NOT NEARLY as
>>> good
>>>> as when it is cold.
>>>> 
>>>> My thought is that the primary carbs are running too lean and that with
>>> the
>>>> chokes on (when cold)... the car runs great.  As soon as the chokes
> open
>>> up,
>>>> it runs lean and bogs down.
>>>> 
>>>> This is my first late and my first 140 so I'm somewhat shooting in the
>>> dark
>>>> here.  If anyone has any suggestions or thoughts as to what the problem
>>>> could be; please let me know.
>>>> 
>>>> Kind Regards,
>>>> 
>>>> 
>>>> Joe West
>>>> Administrator
>>>> http://www.virtualcorvairclub.com
>>>> 
>>>> 
>>>> 
>>>> 
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>>> 
>>> 
>> 
>> Joe West
>> Administrator
>> http://www.virtualcorvairclub.com
>> 
>> 
>> 
>> 
>>  _______________________________________________
>> 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,
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>> Post messages to: VirtualVairs at corvair.org
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> 

Joe West
Administrator
http://www.virtualcorvairclub.com