[AT] Allis C Oil Pump....

[John Boehm]

Inside the pump, there is a light spring and a steel
ball used to regulate the pressure. Is this missing or
broken in yours?

John Boehm
Woodland, CA
Visit my web site at http://vintagetractors.com


--- william.neff.powell at comcast.net wrote:

> All this talk about the Allis C got me to thinking
> about my Allis C's oil pump....
> 
> I believe I have brought up this subject before, but
> it has been a while, so here it is again... 
> 
> I rebuilt the engine in the early 90's and I did not
> touch the oil pump. After running it a few times the
> oil pressure went away and I split the tractor to
> have a look. Could not see anything wrong... 
> 
> Put it back together and then I put a rubber tube on
> the end of my oil can and ran that over the oil
> filter rod, and pumped... That primed the pump and
> the oil pressure came back up. 
> 
> If I park the tractor downhill, the pressure will
> not come back up when I go to restart. 
> 
> If I park the tractor uphill, pressure will come
> back up. 
> 
> I have seen many postings on other sites concerning
> the Allis C and a loss of oil pressure. 
> 
> I find that while the pump is an elegant simple
> design, it lacks the advantages that other pumps
> have when they are submerged in oil... Where, even
> if a submerged pump is worn, it will still pump...
> And, the C's pump, when worn? will not because it
> loses prime.... 
> 
> I am assuming my pump is simply worn out.... 
> 
> Any thoughts on this subject? Do I need a new pump?
> Or, can I machine a part and make it like new? 
> 
> Regards,
> 
> Will Powell
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