[AT] oil pressure

[Gene Dotson]

    Ralph;
    If you are getting oil to the rocker arms with the engine idling, you 
will be getting enough oil to the lower end. These tractor engines have very 
massive rod and main bearing journals and really do not require a large flow 
of oil. These engines were designed to run with the oils available when they 
were manufactured and today's oils do perform better than 50 years ago.

            Gene



----- Original Message ----- 
From: "Ralph Goff" <alfg at sasktel.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Sunday, February 25, 2007 3:08 PM
Subject: [AT] oil pressure


> Thanks to all for the input and ideas on stp and oil pressure on my 
> tractor.
> Phil, this Cockshutt 40 has a true mechanical gauge, no sending unit but a 
> steel line carrying full pressure oil right to the gauge on the dash.
> Its the kind of thing you sort of get used to , seeing the gauge at a 
> certain reading all the time Maybe not noticing a subtle but sure decrease 
> as time goes by. Suddenly one day it is enough of a difference from the 
> norm to start me wondering if I need to take action. Or can these old 
> engines run a long long time on low oil pressure?
> True, thick oil on start up is not a good thing in our cold weather. Even 
> though the old engine will start fine it may take a while before that cold 
> thick oil gets up to all the places that need lubrication.
> I guess I am thinking of the theory of additives like stp that leave a 
> protective film on engine surfaces to provide lubrication when the oil is 
> not there yet.
> I do have several options including the spare Cockshutt 50, although it 
> has developed a thirst for oil in recent years.
> I also have #30 and #15w-40 oil on hand that I use in the newer (summer 
> use) tractors.
> And of course I probably have enough spare 6BA230 engine parts to build up 
> a whole spare engine if I have to.
>
> Ralph in Sask.
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