[Mgs] Fuel Issue

[Richard Ewald]

And the pushrod bandito might have stolen the intake pushrod for #4, but I
would put that about as likely as the #4 valve being stuck open.  Assuming
the engine was OK when parked, I doubt that a valve would get stuck open or
closed without some serious accompanying noises from the motor.  Bill made
no mention of any unusual noises.
A stuck carb on the other hand is quite common, and would not have strange
noises accompanying it.  I have seen this numerous times over the years.
Pull the air cleaners and lift the pistons by hand, do they both rise and
fall the same?  or is the rear piston stiffer to move?
I'll bet 40 quatloos on a carb issue.
Rick


On Mon, Jan 28, 2013 at 4:31 PM, Jim Juhas <james.f.juhas at snet.net> wrote:

> Another possibility is a valve stuck open in #4. Check compression.
>
> Sent via iPad
> Jim Juhas
>
> On Jan 28, 2013, at 6:09 PM, Charley & Peggy Robinson <ccrobins at ktc.com>
> wrote:
>
> > If the valve train is working OK, it may be running on only the front
> carb.
> I've run into this.
> >
> > CR
> > On 1/28/2013 1:40 PM, Bill Snyder wrote:
> >> I have a '66B that I cranked after a 6-month hiatus a few days ago. It
> >> started but ran very rough as if on 3 cylinders. I put in fresh plugs,
> >> checked the dizzy cap and cleaned it contacts as well as the rotor.
> There
> >> was no change. After re-inspecting the plugs, it appears that the 4th
> >> cylinder was not firing, but the plug was not gas or oil fouled. Laying
> the
> >> plug out on the block, attached to the plug wire and cranking showed the
> >> plug firing properly, so I am apparently getting no fuel to that
> cylinder.
> >> Can anyone run me through the procedure to check on that issue? It has
> >> Petronix ignition and has been converted to negative ground. Thanks in
> >> advance.
> >>
> >> Bill Snyder
> >>
> >> Waynesville, NC
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