<VV> Rough Running

[Jim Simpson]

Well, there are always feed problems -- crude in the gas tank, bad fuel 
pump, etc.  Or there could be a cracked base gasket or base insulator on 
one of the carbs.  One quick check would be to recheck the carb balance 
when it's acting up.

(Glad to say that turbos don't have the problem -- at least not too 
often...  ;-)  )

Jim Simpson


At 11:59 AM 6/13/2005, Mike Stillwell wrote:

>  This one really has me stumped. I did the carbs -
>twice - tripple clean on very good cores, new Clark's
>kits, checked the throttle plate seal, new stone
>filters, new choke pull-offs and vaccuum lines.
>  First time, it seemed to have a vaccuum leak on pass
>side (a drip every now and then, at idle). I replaced
>that carb bowl and the insulator - problem went away.
>Tuend it up and it great. Jim drove it and it was
>terrible - racing at idle, then no power in gear.
>  Several local gurus came over and tuned it, as I had
>tuned it when it was about 30 degrees outside. Seemed
>to be a choke adjustment issue. Also added lower
>shrouds and thermostats, which had been missing.
>  It has run well after each dose of attention from
>several sources, but then seems to fall apart. It
>seems to develop a vaccuum leak that allows it to
>flood.
>  Some off the wall things to consider... a hole in the
>balance tube? I replaced the rubber hoses on the
>balance tube. Bad modulator? I checked the rubber
>vaccuum modulator lines and they felt/looked fine. The
>vac. advance tested fine.
>  Any other ideas would be greatly appreciated. Reminds
>me of Funky's problem on Fast Vair with the '63. Just
>when you think you might know what you're doing with
>one of these cars...one comes along that just leaves
>you dumb-founded.
>
>  Mike
>  YS-117
>
>--- JKFG717 at aol.com wrote:
>
> > 66 110 Issues:
> >
> > We took our 66 110 Monza to a car show yesterday. It
> > has rebuilt carbs and a
> > Pertronix. Daytime temps in the low 90's. 30 miles
> > highway to the show. No
> > problems going at all. Car ran well the whole time.
> > Upon leaving it was hard to
> > start. It had been parked on a level surface all
> > day. Stalled out about 5
> > times. Ran as if it was stumbling, had to double
> > pedal, brake & gas, just to keep
> > it going. On the highway it felt weak. Leaving the
> > highway it was harder to
> > keep running. Went from stumbling, to smooth out, to
> > rough, stumbling, smooth,
> > etc.
> >
> > I don't know whether it's card related or ignition
> > or something else. Any
> > help would be appreciated. Jim CORSA, Group Corvair
>
>
>
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