[Farmall] Clutch Decision

[Al Jones]

This is a very timely discussion.  When I start putting the 39 A back 
together, I need to decide what to do.  I haven't done a real close 
inspection, but the only thing I noticed when taking it apart was that the 
release fingers were worn severely.  Can you just replace them or had I 
might as well replace the pressure plate as a unit?

Thanks,
Al

--------------------------------------------------
From: "Jim Becker" <jim.becker at verizon.net>
Sent: Thursday, July 29, 2010 6:26 PM
To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>
Subject: Re: [Farmall] Clutch Decision

> If you only have one spot you will probably be OK.  How big is it? 
> Smaller
> than the diameter of a pencil you probably would never notice.  Try 
> sanding
> the spot.  It may disappear or at least get smaller.  Other than sanding 
> the
> spot, there isn't anything you can do to remove it other than replacing 
> the
> pressure plate.  If there are too many hard spots the clutch will probably
> want to chatter.
> Jim Becker
>
> --------------------------------------------------
> From: "Ben Wagner" <supera1948 at gmail.com>
> Sent: Thursday, July 29, 2010 3:25 PM
> To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>; "At"
> <at at lists.antique-tractor.com>
> Subject: Re: [Farmall] Clutch Decision
>
>> On 7/29/2010 2:28 PM, Jim Becker wrote:
>>> One of the main reasons people buy the whole works is so they won't have
>>> to
>>> do it over, especially at a time when they may actually need to be using
>>> the
>>> tractor (or truck or car).  If this is just a tractor you play with, 
>>> some
>>> of
>>> those concerns don't apply.  Besides, an A is easy to split, so doing it
>>> twice isn't that big a deal either.  Inspect the parts and only replace
>>> what
>>> it really needs.
>>>
>>> Pressure plate:  Clean rust off the friction surface with sand paper.
>>> Inspect for hard spots (look blue), cracks or scoring.  Check the 
>>> springs
>>> and levers for damage.  Make sure the levers are all adjusted the same.
>>> If
>>> that all looks good, reuse it.
>>>
>>> Flywheel:  Same as the friction surface of the pressure plate.
>>>
>>> Driven disk:  Check the thickness of the lining.  If it is mostly worn
>>> out,
>>> replace it.  If not, check that it came off clean, with all friction
>>> material in place and rivets tight.  If it has imbedded rust or a hard
>>> glaze, sand paper it until the glaze is uniformly broken.  Do this
>>> outside
>>> with wind to your back and wear a mask so you don't breath in any dust.
>>> If
>>> it is old, it may have some asbestos in it.  If it looks good at that
>>> point,
>>> reuse it.
>>>
>>> While you are in there, check the pilot bearing for wear and give it a
>>> little oil.  Check the throwout bearing too.
>>> Jim Becker
>>>
>>>
>> Checked the pressure plate, and I do have one of those hard spots.  What
>> do I do to correct this?
>>
>> Thanks,
>> Ben Wagner
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