The article is here:
http://www.team.net/www/rootes/sunbeam/alpine/mk1-5/techtips/techtips.html
Depending on the specific model relief valve, the regulated pressure should
be between 40 and 50 PSI at 2000 RPM and up.
If the pressure is much lower then that, then either the bearing clearances
are too loose, the pump is shot, the relief valve is stuck open, or the gauge
is not accurate.
The purpose of the modification is not to fix clearance problems, but rather
to increase pressure for modified engines.
HTH
Jarrid Gross
-----Original Message-----
>From: D W Spearing <kb9csw@juno.com>
>Sent: Feb 2, 2009 7:35 AM
>To: alpines@autox.team.net
>Subject: [Alpines] Oil pressure regulator valve
>
>Hi
>I have been having low oil pressure problems, even after a major overhaul, on
>my series V. I read an article somewhere about modifying the oil pressure
>regulator valve. As I recall, a hole is drilled in the hex end and a bolt is
>fitted to increase the spring tension, but I do not recall the details. Has
>anyone ever done this or know of the article?
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