JOE..Tim's idea about the oil filter rubber rings an old bell..... I know
you are experienced in this stuff...but remember..Only check/change 1 THING
AT A TIME...and be sure to email us for approval before you take a dinner
break(:>)
RB
----- Original Message -----
From: "Tim Murphy" <timmurph@fastbytes.com>
To: <n197tr4@cs.com>; <fot@autox.team.net>
Sent: Saturday, April 17, 2010 4:48 PM
Subject: Re: [Fot] TR3/TR4 AMBRO OIL LEAK UNDER PRESSURE-APPARENTLY FILTER
BODY Restriction
> 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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