That is much too long, IMHO. Overnight mine is pretty-well instant, rising
rapidly to 60psi. Only after standing for a week or more will it then take
about 8-10 secs to rise. It is not unknown for the oil pump gasket to be
fitted the wrong way round and cause pressure problems.
Bleeding the gauge is not required, and personally I think that a micro-bore
pipe full of cold oil is going to take longer to get the pressure to the
gauge than air.
PaulH.
----- Original Message -----
From: "Danny Varnado" <dannyvarnado@cox.net>
To: "MG List" <mgs@Autox.Team.Net>
Sent: Sunday, October 03, 2004 6:48 PM
Subject: Oil pressure
> How long should it take for oil pressure to register on the gauge? The
engine
> is from a '74 MGB and has about 1500 miles after rebuild. It seems that
the
> longer it sits, the longer it takes for the gauge to show pressure. 15 sec
> after 8 hours, 40 sec after sitting over night and about 50 seconds after
> sitting several days.
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