Re: [Classic Mustang] Low Oil Pressure Revisited

My Ford shop manual, for that specific engine, calls out 50-70 PSI at 2000
RPM. No mods, no nothing, just a stock engine (and that's what the specs
are for). This is a 351 Cleveland, by the way, not a Windsor.

At 05:03 PM 6/4/2009, Tim Easter wrote:

>Dan that # sure sounds high for a stock pump and bottom end.... 35 -50 at
>2600 rpm is what I have found on a ford page..... I'm not sure if I
>remember if your combo was stock or not ...Maybe 70lb with a high volume
>or high pressure pump...... but even at that your oil pressure sounds fine
>to me....... an old machinist told me one time that a good normal pressure
>@ idle was no less than 13 -14 lbs ////// sounds low..... but he built
>engines for a living...... who was I to question
>
>JTS,Tim
>204d4e5.jpg
>
>
>
>
>
>--- On Thu, 6/4/09, Dan O'Reilly <dano@process.com> wrote:
>
>From: Dan O'Reilly <dano@process.com>
>Subject: [Classic Mustang] Low Oil Pressure Revisited
>To: classicmustang@yahoogroups.com
>Date: Thursday, June 4, 2009, 5:01 PM
>
>Finally got a chance to put a real oil pressure gauge on the car today to
>check it out. First of all, the specs from Ford on this motor call for
>50-70 PSI @ 2000 RPM (they don't say what it should be at idle). I let the
>car warm up to normal operating temp, running my normal 10W-30 oil, and
>took a series of measurements:
>
>500 RPM (at idle, in gear) - 16 PSI
>800 RPM (at idle, out of gear) - 30 PSI
>2000 RPM - right around 70 PSI
>
>So, assuming the gauge isn't totally whacked, I think I'm in good
>shape. To heck with the $1500 rebuild! <grin> Anybody else concur those
>readings are decent? One thing I noticed, by the way: at the lower RPM
>(800-500 range) the needle liked to waver a couple PSI or so. I'm guessing
>that's pretty normal - I've never had a "real" oil gauge before - but what
>do you all think?
>
>The nice thing is, this gives me some idea as to how to interpret the gauge
>in the dash, as it just has "L------H" on it. When it's midway, looks like
>it's at about 70 PSI. At idle, which is a bit to the right of the "L"
>line, it's about 16 PSI or so.
>
>---
>
>Dan O'Reilly
>1971 Bright Red Mach 1
>2002 Black Deluxe Convertible
>Colorado Springs, CO
>
>
>
>

---

Dan O'Reilly
1971 Bright Red Mach 1
2002 Black Deluxe Convertible
Colorado Springs, CO

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