On Wed, 16 Sep 1998 18:17:56 Barney Gaylord <barneymg@ntsource.com>
writes:
>At 01:48 PM 9/16/98 -0700, Chris Kantarjiev wrote:
>>.... Morris Minor .... A series engine .... oil pressure gauge ....
>>
>>.... I don't really trust the oil pressure readings .... the oil
>pressure
>line taps in to the gallery that leads from the oil pump to the large
>exit
>fitting at the rear of the block. In a "normal" engine, this goes
>through a
>metal fitting direct to the filter head, whence the oil goes to the
>bearings and elsewhere. The oil filter is probably a 10-15 psi drop in
>pressure.
>>....
>
>I'm not a A-series engine expert, but there are similarities to my
>B-series
>engine. In the B-series engine the oil pressure tap is physically
>located
>right next to the "large exit fitting at the rear of the block", but
>in
>fact it is plumbed into the main oil gallery in the block between the
>oil
>filter and the main bearings, so is directly reading the pressure to
>the
>bearings. Is it not also like this on the A-series engine?
Got it in one Barney!
Actually , I can't think of a better place to pick up a pressure reading,
as it shows what the bearing are actually getting.
Rick Morrison
72 MGBGT
74 Midget
>For a review of the complete oil flow path in the B-series engine,
>chack
>this site:
>
>http://www.ntsource.com/~barneymg/mgtech/engine/en1.htm
>
>Barney Gaylord
>1958 MGA with an attitude
>
>
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