In regards to the relief valve...
After 12,000 miles on my rebuilt motor (TR 4A)... and just as I was preparing to
go to Triumphest... I decided that watching my oil pressure crest 100 when
cold... all this time...had not been a good thing. I decided to monkey with the
relief valve... I loosened it a little bit... now it doesn't go over 70, even
when cold... it has not affected the oil pressure in any other way.... it simply
won't let it go over 70.
subsequently... I have noticed that there is less oil leaking from various
places on my car... (of course, it never leaks from the valve cover gasket! : )
It's a relief valve... limiting how high the pressure can go... I've read
enough on the subject to come to the conclusion that I did the right thing by
making the adjustment.... I should have done it long ago.
I'd certainly welcome comments.
Interesting information on the relief spring loosing it's temper... Perhaps
replacing the 30 year springs wouldn't be a bad idea.
--Justin
Gernot Vonhoegen wrote:
> well the principle of it is the same, the relive valve is situated next to
> the oil filter (i.e. in front of it) and is a large hex screw that you need
> to remove in order to access the spring. I guess its the same for the 4 is
> it?
>
> > ----------
> > From: ArthurK101@aol.com[SMTP:ArthurK101@aol.com]
> > Reply To: ArthurK101@aol.com
> > Sent: Wednesday, November 04, 1998 10:11 PM
> > To: triumphs@autox.team.net
> > Cc: bzw8@cdc.gov
> > Subject: Re: TR4 oil pressure
> >
> >
> > One of you TR6 guys answer this? I don't know, myself. Cheers.
> >
> > Art Kelly
> >
> > In a message dated 98-11-04 15:21:01 EST, bzw8@cdc.gov writes:
> >
> > > Is this the same for a TR6?
> > >
> > > > -----Original Message-----
> > > > From: ArthurK101@aol.com [SMTP:ArthurK101@aol.com]
> > > > Sent: Tuesday, November 03, 1998 7:52 PM
> > > > To: EHamer@vhsinc.com; triumphs@autox.team.net
> > > > Subject: Re: TR4 oil pressure
> > > >
> > > >
> > > > In a message dated 98-11-03 12:51:32 EST, EHamer@vhsinc.com writes:
> > > >
> > > > > I had the same thing happening with my TR4. The oil pressure would
> > drop
> > > > > about 15 psi at about 3,000 rpm. It was caused by a worn oil
> > pressure
> > > > > relief spring. Apparently the spring coils become detempered with
> > > > > age/heat. The pressure should be set to 70 psi at 2,000 rpm when
> > the
> > > > > engine is fully warmed from driving. The spring is available from
> > TRF
> > > > > and Moss and is only a couple of dollars and can be installed in
> > about
> > > > > five minutes.
> > > > >
> > > > > John Hamer
> > > >
> > > > I'll second that. Cheap and an easy repair. It works. Cheers.
> > > >
> > > > Art Kelly
> > >
> > >
> >
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