[AT] High oil pressure a bad thing?

[Alan Riley]

I think I would check out the gauge using compressed air.  Set the air 
pressure
regulator for about 30 psi, then rig up something to connect the air line to 
the
oil pressure gauge.  I've just used the rubber tip on a blow gun held 
tightly to
the gauge fitting to check gauge accuracy.  I've also made up an adaptor
using a Schrader valve connected to an air line male quick disconnect 
fitting
so that I can check the regulator gauges on my compressors against a
known good tire gauge.

Alan



----- Original Message ----- 
From: "Michael Miller" <sweetcorn70 at hotmail.com>
To: <at at lists.antique-tractor.com>
Sent: Saturday, June 23, 2007 5:57 PM
Subject: Re: [AT] High oil pressure a bad thing?


> 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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