Hi Gerard,
Don't think it was the oil check valve in the filter head as I was able to get
oil through the whole system with an external oil pump initially charging the
system even up through the rocker arms..
That side of the block doesn't seem to have an oil plug in the area by the
water petcock. On the oil pressure pipe side, there is a small accesss one
that oil can be gotten out of. This block had all galley plugs drilled out,
all passages rodded and brushed and new threaded plugs put back.
----- Original Message -----
From: Gerard Chateauvieux
To: morris_motors@yahoogroups.com
Cc: Spridgets@autox.team.net ; midgetsprite@yahoogroups.com
Sent: Sunday, June 11, 2006 7:52 PM
Subject: [midgetsprite] Re: [morris_motors] Too much, for a change!!
Paul,
What about the oil check valve in the oil filter head? The only other
thing that comes to mind is a blocked oil gallery somewhere. Can you
get oil put of the plug at the rear of the block near the coolant
petcock/plug?
Gerard
On Jun 11, 2006, at 7:04 PM, Paul Asgeirsson wrote:
> Ok all, I've got a goody puzzler here. First time experience with
> this.
>
> Just completly rebuilt a 1275 and want to run it to break in the
> cam before giving it to the customer, get it on the engine stand,
> have already filled the filter and the oil galleys by an external
> oil pump I use to prime new engines.
>
> Now crank it to get a pressure reading on the oil gauge. Get it,
> stop cranking
>
> Put the plugs in it and hook them up. Starts and runs for a few
> seconds, so I reach over to manually set the choke again. DGV
> carb. Catch a view of a huge puddle of oil on the cement. Look
> closely and only see some oil at the oil pan edge to block. Mmmmm,
> maybe the oil filter isn't tight enough. Give it a quarter turn
> and I see the gasket bulging out the top side of the filter.
>
> Put on a new filter, being aware that it takes likely several
> hundred psi or more to do that. Look at the oil pressure gauge and
> it's broken now. Put on another one. Plugs out of head to crank
> pressure and that gauge pins the top and stays there.
>
> Go buy a real gauge that goes to 200 psi. Install and crank and it
> goes on up to 180 so I stop.
>
> Things I checked:
>
> New spring and plunger
> Oil dump hole to crankcase free and clear
> Try old plunger and spring--pressure too high
> Try cranking with no plunger and spring- No pressure reading.
> Scratch head and leave it alone overnight--GOOD PLAN, I've discovered!
>
> Next day try all the combinations of springs and plungers I have.
> No change
> Back out cap plug until it's barely caught on threads. No change
> Cut progressively small amount off a used spring. No change until
> suddenly no pressure.
>
> OK, so what's the deal? Anyone ever have a problem with too high
> oil pressure at start up? If yes, what did you do to correct it?
>
> Later, Paul A
>
>
[Non-text portions of this message have been removed]
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