[AT] High oil pressure a bad thing?

[Herbert Metz]

Several years ago, Karl Olmstead (Nevada?) stated his method of cleaning
old engines and transmissions was to add kerosene in both, and put tractor
in gear and pull it around in his yard for ten minutes.    I had the
impression that some of the old oil was drained before adding the kerosene.
One of the things he did was pull the sparkplugs.    Also, this was on
tractors that were new to Karl.    One of his concerns was water in
transmission.   Karl was the guy who told us his plans of going somewhere
in CA on a long weekend with intent of starting an old Cat (?) engine, he
recently acquired, that the local Cat mechanic had not been able to get
going.  And he did it, then sold the Cat to a local contractor.  After Karl
left this list, someone said he went to the IHC or JD list (?).    I no
longer have his address; computer crash.    
Karls posts were informative and interesting.
Herb

> [Original Message]
> From: Dean Vinson <dean at vinsonfarm.net>
> To: Antique tractor email discussion group <at at lists.antique-tractor.com>
> Date: 6/23/2007 8:14:08 AM
> Subject: Re: [AT] High oil pressure a bad thing?
>
> 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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