This is an interesting thread. I just started test driving the '74 around (new
diff mounts and all!) and have noticed that the oil pressure swings much like
Tim's -- a good 40 psi difference between idle and cruise. I've been kind of
concerned, since my two daily driver cars have oil pressure gauges, but the
pressure doesn't seem to vary much between idle and cruise. From what I've
read in this thread, that "swing" is normal for the TR6.
Can anybody explain why its so different from modern cars?
Dwayne
-----Original Message-----
From: Mark Hooper [mailto:mhooper@pixelsystems.com]
Sent: Monday, July 01, 2002 11:20 AM
To: 'Timothy Holbrook '; '6pack@autox.team.net '
Subject: RE: RE: Oil Pressure
A thought. What oil are you using. I'm pretty sure I had mine filled with
10W40 this spring at the shop. If you are running straight 30 then that
might explain some of the difference.
Cheers,
Mark
-----Original Message-----
From: Timothy Holbrook
To: 6pack@autox.team.net
Sent: 01/07/02 1:06 PM
Subject: Fwd: RE: Oil Pressure
Wow, those are some pretty high numbers! I'm not sure if those are
typical of most Triumph straight sixes.
My oil pressure gauge is the stock piece and isn't great, but my
brother has a GT6 with an aftermarket mechanical gauge, and his numbers
are about the same as what my gauge shows. Here's what he has:
Cold idle (1500 rpm): around 70 psi.
Hot idle: 20-25 psi.
Hot cruise: 50-60 psi.
When I say hot, I mean normal operating temperature. I almost cooked
my engine last summer (a hair away from red on the temp gauge) and oil
pressure at that point was almost nonexistent at idle.
Tim Holbrook
1971 TR6
--- Mark Hooper <mhooper@pixelsystems.com> wrote:
> From: Mark Hooper <mhooper@pixelsystems.com>
> To: "'Stephen L. Hanselman '" <tr6@kc4sw.com>,
> "'6-pack '"
> <6pack@autox.team.net>
> Subject: RE: Oil Pressure
> Date: Mon, 1 Jul 2002 12:21:21 -0400
>
> My engine was completely rebuilt about 3000 miles ago. I also have
> the
> rocker oil feed installed.
>
> Cold idle 90-100 lbs
> hot idle 50-55 lbs
> hot cruising 80 lbs
>
> These measurements are with a new electric oil gauge (new reader and
> gauge)
>
> If you want an RPM chart tell me and I will do some clipboarding
> tonight.
>
> Mark Hooper
> 72 TR6
>
> -----Original Message-----
> From: Stephen L. Hanselman
> To: 6-pack
> Sent: 01/07/02 1:44 AM
> Subject: Oil Pressure
>
> Hi group,
>
> On a "relatively" new engine where would you expect oil pressure to
> sit,
> both cold and at normal operating temp
>
> Thanks,
>
> Stephen L. Hanselman
> Manager, Defense Systems
> Datagate Incorporated
> +1.775.882.1313 x253 (voice)
> +1.775.882.1689 (fax)
> Stephen.Hanselman@datagateinc.com
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