[AT] Cub--shouldn't have broken my resolution....(Follow up)

[George Willer]

John,

I'm glad the problem is solved, but disappointed you won't be dropping it
off at the WHEC.

A couple points... sometimes folks tinker with the size of the main metering
jet (the hex nut on the side of the carb), evidently thinking they'll
increase power.  WRONG!  There were two sizes.  .034" early and .032" late.

The lube in the steering box is separated from the coolant by a thin part of
the radiator base casting.  I hadn't thought about it when I suggested
vandalism but there could be a flaw in the casting.  You might want to check
the steering box for evidence of coolant since that would be the easiest
direction for leakage.  It's probably just fine.

You're going to LOVE your Cub.

George Willer


> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com [mailto:at-
> bounces at lists.antique-tractor.com] On Behalf Of John Wilkens
> Sent: Tuesday, November 14, 2006 6:03 PM
> To: Antique tractor email discussion group
> Subject: RE: [AT] Cub--shouldn't have broken my resolution....(Follow up)
> 
> Thanks all for all the good suggestions.  I ran through all of them
> this morning and solved the problem.  Whoever suggested that it might
> have been vandalism or operator error to cause me to find oil in the
> radiator was right.  Only it was gear grease not engine
> oil!  Whew!   I finally figured out why cylinders 1 and 2 were not
> firing.  When I shut off the fuel the engine started to run good for
> a few seconds before it quit.  So I pulled out the main carb jet and
> compared it to a parts carb jet and found that the jet orifice was
> almost three times bigger.  When I put in the jet with the smaller
> orifice it ran just fine.  No idea why cylinders 1 and 2 didn't like
> it while 3 and 4 seemed OK.  Now my only problem is how to get solder
> to stick in a small leak in the top radiator tank after circulating
> that gear grease through it!    Well, life is good
> afterall!    Thanks again for your help fellas.....it all helped!     John
> 
> 
> 
> At 07:28 AM 11/13/2006, you wrote:
> >John,
> >
> >A hole in the exhaust side of the manifold is possible, but since the
> >tractor runs on two there can't be a hole in the intake side.  It would
> be
> >the same as an intake valve stuck open... not enough vacuum for any
> cylinder
> >to run.
> >
> >Here's how bad the exhaust side can be and the engine still run:
> >
> >http://members.toast.net/gwill/album/Tractors/Farmall/Cubs/%2753%5FWV/old
> _ma
> >nifold.jpg
> >
> >If the intake side of the manifold were obstructed it would have shown up
> in
> >the compression test.  Mud daubers obstructing the exhaust side?  My bet
> is
> >the spark isn't happening at the right time.
> >
> >We have a good therapy department at the Willer Home for Elderly Cubs.
> ;-)
> >
> >George Willer
> >
> > > -----Original Message-----
> > > From: at-bounces at lists.antique-tractor.com [mailto:at-
> > > bounces at lists.antique-tractor.com] On Behalf Of John Wilkens
> > > Sent: Monday, November 13, 2006 9:54 AM
> > > To: Antique tractor email discussion group
> > > Subject: RE: [AT] Cub--shouldn't have broken my resolution....
> > >
> > > Thanks Dudley, I'll try that today or tomorrow.   John
> > >
> > >
> > >
> > > At 12:06 AM 11/13/2006, you wrote:
> > > >...    The less troublesome question is why don't cylnders 1 and 2
> fire.
> > > I
> > > >figure there's a mouse nest in the
> > > >front part of the manifold or some kind of hole burnt between the
> intake
> > > >tube and exhaust tube.  Ever hear of that happening with a Cub?
> > > >Thanks for your moral support!
> > > >John,
> > > >If the plugs in (and the wires to) cylinders #1 & #2 are good I would
> be
> > > >tempted to remove the plugs and inject the starter fluid directly
> into
> > > the
> > > >cylinders.  If they fire momentarily that would go a long way toward
> > > >confirming your' thinking about a blockage in the intake manifold.
> > > >Dudley
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >_______________________________________________
> > > >AT mailing list
> > > >Remembering Our Friend Cecil Monson 11-4-2005
> > > >http://www.antique-tractor.com/mailman/listinfo/at
> > >
> > >
> > >                     In the wide-open spaces of NE Oregon
> > >
> > >
> > >
> > > _______________________________________________
> > > AT mailing list
> > > Remembering Our Friend Cecil Monson 11-4-2005
> > > http://www.antique-tractor.com/mailman/listinfo/at
> >
> >_______________________________________________
> >AT mailing list
> >Remembering Our Friend Cecil Monson 11-4-2005
> >http://www.antique-tractor.com/mailman/listinfo/at
> 
> 
>                     In the wide-open spaces of NE Oregon
> 
> 
> 
> _______________________________________________
> AT mailing list
> Remembering Our Friend Cecil Monson 11-4-2005
> http://www.antique-tractor.com/mailman/listinfo/at