If memory serves - the brass one was the one that sticks. The threads are
at the hex end, the idea being that the end fits into the body of the oil
filter assy with pretty close tolerences. This means that any distortion
can cause it to bind and the whole valve body (tube) will distort enough to
cause the valve to stick.
The steel one has its threads an the end rather like a bolt and it much
heavier. and will not distort.
John
At 11:58 AM 8/21/01 +0100, Ed Esslinger wrote:
> Hi Tom - I have two screw on oil filter adapter plates but no oil pressure
>relief valves. The small valve was used in them.(and has been known to stick
>open) I think a machine shop may be able to fit the larger valve, maybe
>even the one from a series 1-2 or early 3. If you want to try it let me
>know. Regards Ed
>Cool Cat Eddie ,1 S3 GT,3 S4's, 2 S5's, 2 MK1 Tigers
>Deep South Rep TE/AE
>----- Original Message -----
>From: "Thomas Wiencek" <wiencek@anl.gov>
>To: <JGross@econolite.com>; <alpines@autox.team.net>; <SloMoIV@aol.com>;
><owner-alpines@autox.team.net>
>Sent: Tuesday, August 21, 2001 2:58 PM
>Subject: Re: Relief Valves
>
>
> > You wrote -
> > "Sunbeam Specialties sells these later units (valve and plate) new"
> > Does anyone know of another source for these? the last time I asked
>Sunbeam Specialties he said they were no longer available.
> > Tom
> >
> > On 8/20/01, SloMoIV@aol.com wrote:
> > I thought I'd read that Rootes went back to the earlier (pre-Series V)
>valve
> > after problems developed with the early Series V valve sticking open.
> >
> > I haven't noticed any change in thread location on Series V oil filter
> > plates. On the Hunter/Arrow Range cars, the threads did switch ends. The
> > later valve is also much wider.
> > Sunbeam Specialties sells these later units (valve and plate) new - I
>bought
> > one several years (about 100,000 miles) ago and haven't a problem since.
> >
> > Dick Sanders
> > Seattle
> >
> >
> > In a message dated 8/20/01 3:22:47 PM Pacific Daylight Time,
> > JGross@econolite.com writes:
> >
> > << Tom,
> >
> > The difference was where the threads are located on the valve
> > itself.
> >
> > I think early ones were toward the bolt side, and the late ones
> > were at the end of the valve.
> >
> > Jarrid Gross
> >
> >
> > -----Original Message-----
> > From: owner-alpines@autox.team.net
> > [mailto:owner-alpines@autox.team.net]On Behalf Of Thomas Wiencek
> > Sent: Monday, August 20, 2001 1:04 PM
> > To: Message Alpine
> > Subject: Relief Valves
> >
> >
> > I have heard that there are two types of Series V relief valves. Early
>ones
> > (not so good) and later ones (improved). Is there a way to tell the
> > difference without having to destroy an engine? Also, were there any
> > problems with the 1600 brass relief valves or changes (improvements) in
> > design? Thanks.
> > Tom >>
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