Thanks all . . that did it . . got it through my thick skull (for the
first time).
Thanks so much for the education . . much appreciated.
Kirk
59 1275 keeping oil pressure after ten years on an engine rebuild, daily
driving.
On Wed, Aug 13, 2014 at 3:17 PM, Bud Osbourne <abcoz@hky.com> wrote:
> Decreased discharge volume, due to excessive "lift", is not usually much of
> a problem with a positive displacement pump (which a gear pump is).
> However, with a little bit of wear, it can become an issue. Centrifugal
> pumps, on the other hand (an example would be our car's water pumps), loose
> volume fast, when the lift distance is increased beyond a certain point.
> Bud
>
> -----Original Message-----
> From: Spridgets [mailto:spridgets-bounces@autox.team.net] On Behalf Of
> Michael MacLean
> Sent: Wednesday, August 13, 2014 3:39 PM
> To: Spridget list
> Subject: Re: [Spridgets] Oil Pressure vs Quantity
>
> Bud's reply makes sense and maybe if I had replaced the pump this "symptom"
> would have gone away. The pressure was rock steady through any kind of
> driving, so I think the pickup was in the right spot. At the time I knew
> nothing of cars. I just used the low pressure as an indicator and never
> had
> to remove the dipstick. It ran fine until I lent it to a friend that
> wanted
> to visit his girlfriend in the Marines in Twenty Nine Palms. He had to
> drive from Hermosa Beach and I told him to just watch the oil pressure
> gauge
> and stop when the pressure got down to forty. I even supplied the oil. I
> guess he was only thinking of one thing while driving out there. He got as
> far as Needles, California and the engine seized. He had to buy me a used
> engine from the junk yard to replace the one he killed. Yes, there were
> Bugeyes in junkyards back then. After that I had to use the dipstick like
> everyone else.Mike
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