[AT] [Farmall] @$#@$#% Cub - red engine oil

[charliehill]

Mike have you ever tried to repair the groove in one of those shafts with a 
speedy sleeve?  Also,  it looks to me like there is enough room on the shaft 
to turn it down and press fit a bushing on the damaged area.  Hard to tell 
looking at a picture and not knowing how it goes back together.


----- Original Message ----- 
From: "Mike Sloane" <mikesloane at verizon.net>
To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>
Cc: "Antique tractor" <at at lists.antique-tractor.com>
Sent: Saturday, August 15, 2009 6:37 AM
Subject: Re: [AT] [Farmall] @$#@$#% Cub - red engine oil


> This is a very common problem with older Cubs. The O ring on the pump
> drive shaft gets dried out and permits hydraulic fluid to be pumped past
> it into the engine. The seal is a standard SAE O ring, nothing special,
> as are the two O rings on the back of the pump where the manifold pipe
> is bolted up. (Case IH sells a pump "overhaul" kit that consists of the
> O rings and some gaskets, plus a page of instructions.) After you remove
> the old ring, look at the pump shaft carefully, If there is no damage to
> the pump shaft, you can just replace the O ring and put everything back
> together. If the ring has hardened and cut into the shaft, you have a
> problem that is is pretty much impossible to repair if it is too deep. I
> had one that I was able to just polish the shaft a little and use a
> slightly thicker O ring, but on another one the groove was really deep
> and could only be fixed by replacing the pump.
>
> See
> <http://public.fotki.com/mikesloane/1952-farmall-cub/leakinghydraulicpump.html>
> for a view of the shaft. In the image, I have a screw as a "pointer"
> indicating the area of concern. Usually a light application of steel
> wool or even very fine emery cloth is sufficient to restore the surface
> to usability.
>
> I hope this helps,
>
> Mike
>
> Dave Merchant wrote:
>> Sure looks like HyTran in the engine oil.
>>
>> How big a deal is it to fix the pump seals?
>>
>> Where to buy seals?
>>
>> Any danger the shaft could be messed up too?
>> Is it a rotating shaft or a plunger?
>>
>> Thanks
>> Dave Merchant
>>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at