Hi Aaron:
True enough. I was writing more about the notion that if you put a spring
stronger than stock it will somehow raise your oil pressure on a worn engine. I
seem to remember in 1986 putting a nut or something in the cap to
super-compress the spring and winding it down tight. Didn't do a da---d thing.
Somebody else undoubtedly has the actual number, but I seem to recall that the
pressure bypass is supposed to open around 100 lbs. Certainly when my engine is
cold it runs at 95+ psi. Back in 1986 it idled at about 5 psi, so I was getting
a bit desperate.
Cheers,
Mark
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net]On
Behalf Of acekraut11@aol.com
Sent: April 28, 2005 10:18 PM
To: 6pack@autox.team.net
Subject: Re: Low oil pressure
...but, if the spring in the pressure relief valve is weak from years
of use then it would allow more oil to bypass causing an overall
reduced oil pressure reading. Does this make sense?
Aaron Cropley
71 TR6 (Throttle Body Injection!)
http://www.triumphowners.com/108
Topsham, Maine
-----Original Message-----
From: Mark Hooper <mhooper@digiscreen.ca>
To: mitch vamos <mitchvamos@operamail.com>; Brian Yarborough
<bytr6@frontiernet.net>; 6-pack <6pack@autox.team.net>
Sent: Thu, 28 Apr 2005 21:26:51 -0400
Subject: RE: Low oil pressure
Doesn't this just provide some increase in maximum oil pressure acting
on the
fiter? As far as I know, the spring/ball affair is not a pressure
regulator, it
is a bypass. The bypass comes into play only when the filter is so
plugged up
that the engine begins to starve for oil. This is seen as a huge
increase in
pressure between the pump and the filter. When this condition arises,
the bypass
opens and lets unfiltered oil into the engine rather than having the
works
running without lubrication. Increasing the spring strength has no
impact if the
pump or bearings are worn; it only allows the pump to work at higher
pressure
pushing oil through a dirty filter. It also helps in cold weather when
cold
thick oil can't flow through the filter fast enough to maintain
pressure in the
passages.
Mark
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net]On
Behalf Of mitch vamos
Sent: April 28, 2005 8:37 PM
To: Brian Yarborough; 6-pack
Subject: Re: Low oil pressure
Anyone with an older engine tried this? I have one in the garage but
have good
pressure and don't need it but i'd try it if i didn't or was using one
of the
oilers for the rockers. Moss sells the spring.
329-355 $2.95
SPRING, heavy
Note: Provides some increase in oil pressure.
----- Original Message -----
From: "Brian Yarborough" <bytr6@frontiernet.net>
To: "6-pack" <6pack@autox.team.net>
Subject: Low oil pressure
Date: Thu, 28 Apr 2005 18:15:47 -0400
>
> Hi all;
>
> I've been following the low oil pressure subject avidly. My '76 has
about
> 12# @ hot idle, 50 # @ speed.
> So, I should check oil pressure sender, set screw on rockers, then
check the
> oil pump specs?
>
>
> Brian Yarborough
> 1976 TR-6
> CF55886UO
|