[AJD] 1939 JD 'A'

[Don Shehi]

Brain

Thanks for the information on the tappet oiling on the John Deere A's.  My
dad always told me that the pipe was an air breather pipe.  I have seen the
old A's apart for putting in new rings, but my memory has faded on how it
looked.

Don Shehi
Camp Verde, Az

-----Original Message-----
From: antique-johndeere-bounces at lists.antique-tractor.com
[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf Of
Brian VanDragt
Sent: Tuesday, June 15, 2004 8:14 PM
To: Antique John Deere mailing list
Subject: Re: [AJD] 1939 JD 'A'

On Dave and Robert's A, serial number 487153, the tappets are oiled with the
tube from the govenor to the tappet cover.  Starting with serial number
488000 the tappets were oiled with a line from the block inside the tappet
cover.  On the earlier system like Dave and Roberts, the oil comes from the
filter, up to the governor housing and squirts out of a hole inside the
governor housing onto the fan gears which spash the oil all around inside
the housing.  There is a trough cast into the inside front of the governor
housing which collects oil to send down the tube to the top of the tappet
cover where it is dripped into another trough inside the tappet cover that
drips oil onto each rocker arm.  There could be an obstruction in the
governor housing either where oil is sprayed onto the gears, or where the
trough drains into the oil tube to the tappet cover.  Both of these holes
are fairly small.  Try taking the tube off of the governor and stick a wire
into the hole in the governor housing.  Oil should drip steadily through the
tube, the tappet cover does not need to be installed for oil to come out the
tube.

Brian VanDragt


----- Original Message ----- 
From: "Don Shehi" <shehi at commspeed.net>
To: "'Antique John Deere mailing list'"
<antique-johndeere at lists.antique-tractor.com>
Sent: Monday, June 14, 2004 12:16 AM
Subject: RE: [AJD] 1939 JD 'A'


>
>
> Dave and Robert
>
> I grew up on my dad's 39 A. so I put a lot of hours on one in eastern
> Kansas.
>
> If I remember right, the tube you are talking about from the tappet cover
to
> the governor housing is for crankcase ventilation. I don't think it
carries
> oil, only the fumes off the head of the engine.
>
> I believe the tappets are oiled from an oil line off the head.  It's been
a
> long time since I have in one.
>
> Don Shehi
> Camp Verde, Az
>
> -----Original Message-----
> From: antique-johndeere-bounces at lists.antique-tractor.com
> [mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf Of
> Gail L. Kratzig
> Sent: Sunday, June 13, 2004 6:27 PM
> To: antique-johndeere at lists.antique-tractor.com
> Subject: [AJD] 1939 JD 'A'
>
>
>
>      We just got our 1939 'A' running again after a complete engine
> overhaul.  We did not reinstall the valve cover-- as we wanted to
> retorque the head nuts after the engine got hot.  While the engine
> was running, no oil came out of the tappet oiler pipe from the
> governor housing to the cover (that pipe was installed).  We were
> wondering what makes the oil come out and with what frequency does it
> work?  Does the valve cover need to be installed for the oil to flow
> out of the pipe?  We did make sure that the line was clean and free
> of obstructions.
>      From time to time, someone brings up the topic of yellow-backed fans.
>  We were wondering again, if our 'A' (487153) had a fan that was
> painted yellow?  And for future reference what years did this occur?
>
>
> Thanks,
>      Dave & Robert
>
> 1959 830D (8302786)
> 1957 720SD (7207359)
> 1951 B (277269)
> 1939 A (487153)
> 1937 BO (327362)
>
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