[AT] [Farmall] Super A engine jams when hand cranking

[charlie hill]

Good deal Al.  I bet it will crank and run just fine.

Charlie

-----Original Message----- 
From: Al Jones
Sent: Sunday, July 17, 2011 6:21 PM
To: Farmall/IHC mailing list ; at at lists.antique-tractor.com
Subject: Re: [AT] [Farmall] Super A engine jams when hand cranking

Figured it out!  After sleeping on it, it dawned on me that when I shined my 
light in each sparkplug hole that #2 & #3 pistons were close to TDC, and 
that I could see some trash in each cylinder.  So I got my long-necked 
funnel and poured some gas in those two cylinders.  Sure enough, once I 
flushed them out good, it would turn over like it's supposed to.

So I can cross one crisis off the list......

I'm going to get some new plugs tomorrow and see if I can crank it.

Al


-----Original Message-----
>From: john hall <jtchall at nc.rr.com>
>Sent: Jul 17, 2011 8:05 AM
>To: Farmall/IHC mailing list <farmall at lists.antique-tractor.com>
>Subject: Re: [Farmall] Super A engine jams when hand cranking
>
>Al, good thinking on checking the starter. I would  pull the plugs and see
>if the engine will turn over then. It is possible you pulled in so much 
>fuel
>(carb acting up) you have locked it that way--careful you don't roll it 
>over
>with the plugs out and a bunch of gas comes out one of the cylinders about
>the time than mag impulses. You may also have a coolant leak that has 
>caused
>the engine to lock---probably more likely than gas. If that is not it then
>pull the valve cover and check for a stuck valve. Since you have not had it
>running, one may have been stuck and by turning it over you have bent a
>pushrod or broke a rocker arm and are now causing something to bind up.
>Another thought is the crank itself. Super A's are pretty simple so there
>shouldn't be anything there that could bind up like on the Farmalls and F
>series that used a drive shaft with u-joints. One other thought if
>everything else checks OK--pull the clutch inspection cover and make sure
>something strange isn't going on there--I'm thinking fork demolished or
>shaft broke, something that would have caused the PO to park the tractor. 
>If
>all this checks OK, consider the timing gears and hydraulic pump. Only ran
>into one Super A  that had a problem with them---It took out every gear and
>snapped the pump shaft. Should this be the problem, get EVERY gear out of
>the same junk engine or you will have a lot of gear noise.
>
> My first guess is a bad coolant leak, second guess would be valve issues.
>
>John Hall
>.
>----- Original Message ----- 
>From: "Al Jones" <farmallsupera at earthlink.net>
>To: <at at lists.antique-tractor.com>; <farmall at lists.antique-tractor.com>
>Sent: Sunday, July 17, 2011 1:48 AM
>Subject: [Farmall] Super A engine jams when hand cranking
>
>
>> Had some time to work on "Ol Whitey," my white demo Super A
>> yesterday...finally got the mag hot, (long story) and decided it was time
>> to try to start it. Rigged up a pony gas tank, and after a few pulls of
>> the crank, it did "hit" a time or two, which got my hopes way up. After a
>> couple more trys, it suddenly became impossible to turn the engine with
>> the crank. I was able to turn the engine backward by pulling on the fan
>> blades, and it released and seemed ok but after a couple more trys it did
>> it again, and I couldn't get it to turn loose. So I decided to call it a
>> night.
>>
>> I've hand cranked this engine a number of times and it has never shown 
>> any
>> problem like this.
>>
>> Any ideas what's binding it? I pulled the starter off just to make sure 
>> it
>> wasn't jamming the flywheel (although I don't see why it would since I 
>> was
>> hand cranking it.) No change. Though I have been around Super A's all my
>> life, I'm not much of a mechanic, but my notion is there's an issue in 
>> the
>> timing gears. Of course, those "hoofbeats I hear may not be zebras." In
>> other words, it may not be that exotic of a problem. What else should I
>> look for? I had high hopes of being able to hear it run before I did more
>> extensive engine work, but that possibility appears to be fading fast...
>>
>> Al
>>
>>
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>
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