[AT] High oil pressure a bad thing?

[Michael Miller]

Dean,

I've been following this thread with interest.   I, too, recently installed 
new OEM gauges in my Super MTA.   Mine pegs at anything over an idle too.   
I wonder if their gauges aren't off?

Mike


>From: "Dean Vinson" <dean at vinsonfarm.net>
>Reply-To: Antique tractor email discussion group 
><at at lists.antique-tractor.com>
>To: "'Antique tractor email discussion group'" 
><at at lists.antique-tractor.com>
>Subject: Re: [AT] High oil pressure a bad thing?
>Date: Sat, 23 Jun 2007 08:06:32 -0400
>
>Dudley wrote:
>
> > But if by high oil pressure you really do mean high oil pressure as in
> > you've measured it with a couple of different gauges both of which give
> > the same high reading) then I would suspect that the tractor might have
> > a clogged oil artery somewhere.
>
>Danny wrote:
>
> > I have always been told if on a diesel engine the oil pressure was too
> > high it would result in leaky seals and gaskets.. As well as it is
> > reducing the life of you oil pump as its working harder than it needs 
>too.
> > http://lubricants.s5.com/oil_pressure.htm
>
>John wrote:
>
> > FWIW, about 2 seconds after it fires up, the M here pegs the oil
> > pressure gauge. Motor was last torn down in the mid '60s and the gauge
> > is the original. Maybe this is typical of M's?
>
>Thanks, gentlemen--good comments all, and that's a good website.  I haven't
>measured the pressure in my tractor, other than to observe the normal oil
>pressure gauge (new replacement gauge from OEM, no numbers, just an
>operating range). I suspect John's right that a high reading is typical of
>Ms, but it also wouldn't surprise me at all if some of the oil galleries 
>are
>somewhat gunked up.
>
>The engine has good compression and I don't hardly do anything with the
>tractor anyway, so I don't plan to tear the engine down unless I run out of
>other projects some winter and decide to do it just for the fun and
>education.  I changed the oil and filter when I bought the tractor last
>year, but I didn't do anything with the oil pan or pump.  But it drips some
>oil from around the oil pan, so I've been thinking I ought to pull that 
>off,
>clean everything up, replace the gasket, and change the oil again anyway.
>Whatever may be going on in the galleries, clean oil would be better.
>
>Somebody just mentioned in another thread that before changing oil, they
>used to pour some kerosene in on top of the oil and then run the tractor at
>idle for a few minutes.  I like the idea of really flushing everything 
>clean
>every time, but since I'm not starting with a freshly rebuilt (and known to
>be clean) engine I'd worry that rinsing kerosene or diesel or something
>through it now might cause more problems than it fixes.  Anyone have any
>success trying this?
>
>Dean Vinson
>Dayton, Ohio
>www.vinsonfarm.net
>
>
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