[Farmall] Farmall Digest, Vol 87, Issue 12
Brian
bcolt1 at yahoo.com
Sun Jul 17 09:31:21 PDT 2011
Perhaps something built a nest in the clutch/flywheel area. Sounds like it to me.
--- On Sun, 7/17/11, farmall-request at lists.antique-tractor.com <farmall-request at lists.antique-tractor.com> wrote:
From: farmall-request at lists.antique-tractor.com <farmall-request at lists.antique-tractor.com>
Subject: Farmall Digest, Vol 87, Issue 12
To: farmall at lists.antique-tractor.com
Date: Sunday, July 17, 2011, 12:00 PM
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Today's Topics:
1. Super A engine jams when hand cranking (Al Jones)
2. Re: Super A engine jams when hand cranking (john hall)
3. Re: Super A engine jams when hand cranking (Al Jones)
----------------------------------------------------------------------
Message: 1
Date: Sun, 17 Jul 2011 01:48:28 -0400 (GMT-04:00)
From: Al Jones <farmallsupera at earthlink.net>
Subject: [Farmall] Super A engine jams when hand cranking
To: at at lists.antique-tractor.com, farmall at lists.antique-tractor.com
Message-ID:
<28806633.1310881708579.JavaMail.root at mswamui-cedar.atl.sa.earthlink.net>
Content-Type: text/plain; charset=UTF-8
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
------------------------------
Message: 2
Date: Sun, 17 Jul 2011 08:05:06 -0400
From: "john hall" <jtchall at nc.rr.com>
Subject: Re: [Farmall] Super A engine jams when hand cranking
To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>
Message-ID: <114490EEF9DA4F118C52B2707D7739C6 at carter>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
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
>
>
> _______________________________________________
> Farmall mailing list
> http://www.antique-tractor.com/mailman/listinfo/farmall
------------------------------
Message: 3
Date: Sun, 17 Jul 2011 10:43:19 -0400 (GMT-04:00)
From: Al Jones <farmallsupera at earthlink.net>
Subject: Re: [Farmall] Super A engine jams when hand cranking
To: Farmall/IHC mailing list <farmall at lists.antique-tractor.com>
Message-ID:
<19816448.1310913800195.JavaMail.root at elwamui-cypress.atl.sa.earthlink.net>
Content-Type: text/plain; charset=UTF-8
John and Charlie,
I did pull out the plugs, no sign of coolant. When the po got it, it was locked in two gears. This makes me wonder about driveline issues. He did get it out of gear and it rolled freely for me to load/unload.
Will keep looking...
thanks,
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
>>
>>
>> _______________________________________________
>> Farmall mailing list
>> http://www.antique-tractor.com/mailman/listinfo/farmall
>
>_______________________________________________
>Farmall mailing list
>http://www.antique-tractor.com/mailman/listinfo/farmall
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End of Farmall Digest, Vol 87, Issue 12
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