[Farmall] gas in oil

[Mike Sloane]

The problem with the Cub hydraulic pump is that the O ring in front 
hardens over time and actually begins to grind a groove in the pump 
shaft. That is when fluid starts getting pumped into the engine. If you 
catch it early enough, you can just lightly polish the shaft and replace 
the O ring. But if the groove is too deep, there is nothing that can be 
done (as far as I know). There is not enough room for a Speedi-sleeve, 
and replacement parts are not available - you just have to replace the 
pump, which is an expensive proposition. This is based on my experience 
with three of my Cubs - two pumps were successfully repaired, but the 
other was beyond help.

And, by the way, I cannot think of any way that gas could get into the 
oil pan on a C-60 engine - I have to agree with others that you must be 
seeing hydraulic fluid. The quickest way to check is to monitor the 
level of the hydraulic fluid in the Touch-Control unit.

Mike

E. John Puckett wrote:
> guess my mind is slipping. My cousin called me about his cub getting gas 
> in oil last summer.  He had a hydraulic pump leaking.  oops.
> 
> DBigdog wrote:
>> Are you sure it's gas and not hydraulic fluid?  Many times the seals in the 
>> hydraulic pump fail and allow hydraulic fluid to enter the crankcase.  Easy 
>> fix if you rebuild the pump.
>>
>>
>> ----- Original Message ----- 
>> From: Ed Phipps
>> To: farmall at lists.antique-tractor.com
>> Sent: Tuesday, September 30, 2008 9:04 PM
>> Subject: [Farmall] gas in oil
>>
>>
>>   Hey guys,
>>   I developed the problem of gas getting into the oil pan. Any ideas, 
>> thoughts, or is a rebuild the only course of action? This is a 1955 cub, and 
>> so far it has been a good tractor, the short time I have had it.
>>
>>   Thanks,
>>   Ed