Greg and all,
It wasn't doing that before you changed the sending unit? Then it is the
sending unit ;-) Some are wired to increase resistance as oil pressure rises
and others are just the opposite. Yours is wired backwards for the gauge you
have.
Since Alfa gauges are normally not accurate and are strictly an indicator
I would connect a known good direct reading gauge and see what the oil
pressure really is, lock those numbers in your cranial computer then put the
old sending unit back in and what it reads is what is normal for that set up.
See ya in Toronto,
Skip Patnode
'67 Duetto
Norfolk, Va
Date: Wed, 30 May 2012 15:43:31 +0000 (UTC)
From: [email protected]
Subject: [alfa] Oil pressuer vagaries
Gentle Alfisti,
Spica spider oil pressure was reading low, so as I have done in the past,
r&r'd the sending unit. Now the pressure indicates better than 57 pounds
(straight up on the dial) at idle and then falls to below this level at higher
rpms. It does the opposite of what I would expect. Could the Digest confirm
that the pressure-relief function of the oil pump might cause this
observation?
modelle in somers point
72 spider
67 sprint veloce RHD
--
to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi
or email "unsubscribe alfa" to [email protected]
