Joe,
Just a thought, check on the canister housing and make sure there is
only ONE "o-ring" in the groove. It's easy to have 2 and sometimes 3 forced
in there. As I recall, the stock housing casting has a taper on it to guide
the canister into the slot. With 2 or 3 "o-rings" in there the canister
will tend to wobble around a bit and leak. As I recall, Ryan's street TR4
had 2 "o-rings" in the canister. The oil pressure initially at road speed
and then dropping to a normal 50 PSI or so at 3000 sounds about right for a
stock engine.
Doesn't explain the problem with the spin on but it could be two
separate problems, just to confuse everybody!!
Tim
-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of n197tr4@cs.com
Sent: Friday, April 16, 2010 7:40 AM
To: fot@autox.team.net
Subject: [Fot] TR3/TR4 AMBRO OIL LEAK UNDER PRESSURE-APPARENTLY FILTER BODY
Restriction
This one is new to me.....oil pressure appears normal at idle.
At road speed (3000 RPM) oil pressure starts to build higher to 75-80 psi
depending on the relief valve setting, and eventually settles back as the
engine reaches operating temps....about a 10 mile run..
Upon return to garage the area around the filter body is wet and about 1/3
of
a quart of oil has migrated to the transmission area and pools under the
car...a lot of oil.
I initially suspected the rear crank seal, but the amount of oil around the
filter body support tends to dispel that idea.
I now suspect a restriction of some kind, but it would be good if anyone has
experience this before and has a specific cause.
Outside of that, the AMBRO seems to be a remarkable car, so far, but needs
high speed runs with extreme cornering forces as part of the sorting
process.
Looking forward to any experience or suggestions.
Thanks....Joe A
=
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