[AT] Super MTA oil pressure

[charlie hill]

Dick,  Mix 2 quarts of kerosene with 2 quarts of motor oil or better yet
automatic transmission oil and run it idle for a few minutes and drain it.

Beware,  some of that sludge might be holding things together.  Once you get
it clean you might hear lots of rattles, and find yourself doing a rebuild.

Charlie
----- Original Message ----- 
From: "D. Day" <ddss at scppd.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Saturday, March 20, 2004 8:50 AM
Subject: RE: [AT] Super MTA oil pressure


> Nice ramble!  Thanks for taking the time to reply.
>
> Is it possible that running kerosene through the oil system might flush
the
> blockage out?  The inside of that engine must be incredibly dirty.  After
> draining the oil and then refilling it with new, I again drained it when I
> worked on the oil filter problem.  The oil that came out of there looked
> like it had not been changed in years! It was as black as the original oil
> was.
>
> Dick
>
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com]On Behalf Of Dudley Rupert
> Sent: Saturday, March 20, 2004 2:36 AM
> To: Antique tractor email discussion group
> Subject: RE: [AT] Super MTA oil pressure
>
>
> Dick:
> That's a good question -
> I think the IH engine oil system designer might have reasoned somewhat as
> follows:
> If the engine turns at say 1500 rpm then in order to keep the expected
heat
> buildup of the Main, Rod and Cam bearings and the rocker arm assemblies
> within reason I am going to have to ensure that a quantity of say X oil
> flows over these surfaces in say 1 minute.  So, he translates that into an
> oil pump of X gallons per minute at Y PSI.  Now, if one of these surfaces,
> say the rocker arm assembly, were to suddenly get s second source of oil
> (from the same pump) then I guess theoretically the pressure at each of
the
> surfaces would be reduced thereby resulting in the bottom of the engine
> getting less oil than expected and the top getting more (because there are
> now two sources of oil to the top).  Now, if there were absolutely no
margin
> whatsoever in this design we would probably conclude that yeah this might
be
> a problem.
>
> But, now to the practical world - if your' pump is putting out a good
> flow/pressure (I believe in one E-Mail you said 70 psi) then I've got to
> believe that even though this second path would cause a greater percentage
> of the overall oil flow to be forced to the top of the engine there would
> still be ample oil to the bottom part (BTW your pressure gauge may read
less
> in this scenario).
>
> The only other concern that I can think of would be can this excess oil
> being pumped into the top on the engine get back down to the pan/pump
> without backing up under the valve cover.  I believe the oil flows back
down
> through the push rod openings - I just can't hazard a guess here.
>
> In summary, if faced with the choice of 1) no oil up top or 2) maybe too
> much and a slight increase in the chance that there might not be enough to
> the bottom I would take door #2.  I do share, however, the concern that a
> couple of folks have already expressed and that is are you sure you are
> getting oil to the CAM bearings; for example, if the oil gallery is
plugged
> before the Center CAM Bearing (at least that is the flow on the H) then
that
> problem would need solving.
>
> This has been a ramble and hasn't answered your' question but hope it
helps
> (my daughter says that if I ramble when asked a question it means I don't
> have an answer).
>
> Good luck -
> Dudley
>
>
>
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com]On Behalf Of D. Day
> Sent: Friday, March 19, 2004 7:37 PM
> To: ATIS-New
> Subject: FW: [AT] Super MTA oil pressure
>
>
>
>
> Dudley, the option of installing a second oil supply is tempting but what
> would happen if the oil starts flowing from the cam again and I have two
oil
> lines supplying oil to the rocker assembly?  Would that be a problem?
>
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com]On Behalf Of Dudley Rupert
> Sent: Thursday, March 18, 2004 10:37 AM
> To: Antique tractor email discussion group
> Subject: RE: [AT] Super MTA oil pressure
>
>
> Dick:
> As for an external source of constant oil flow that Bob mentions below,
the
> line that takes oil from the lower right side of the engine block (just
aft
> of the oil filter) up to the oil pressure gauge passes right by the aft
side
> of the valve cover - placing a Tee there might be a quick way to get oil
in
> to the valve cover -
> Dudley
> Snohomish, Washington
>
>
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