[ROVERNET - UK] Expansion Tank - next step

James Dean jaguru at bellsouth.net
Tue Feb 22 01:31:25 GMT 2005

35 Years ago,When I had my First shop in Cambridge, Mass, and Rovers were
still low mileage used cars that I serviced; I spoke to the BMC Factory rep.
about overheating on Mini-Cooper S. The factory had solved this problem,
using BMC factory parts.They used a blanking sleeve- this was a thermostat
with the center removed. A flat non-release cap on the radiator(As I
previously stated, same as SI XJ6), And the expansion  tank, also used on
various MG's. Mini Cooper S and Series II Etype.I know no one wants to hear
aboutJaguarand MG, but the parts do not know what car they are on, and this
pressurized system works better than the non pressurized plastic
tanks.Regarding blanking sleeves, they were a competition item; it is best
to use thermoststs.Regarding the brass tank, The BMC rep said it can go
anywhere, but it must be below the level of the radiator cap.It should be
half full when coolant is cold, radiator should be full.The tank must be
accessible, as you top up its coolant, so don't hide it in the fender.There
are 2sizes of these tanks, the later one is fatter, and holds a little more.
If anyone wants one, I just found one. Contact me offline, or I will put it
on my ebay store, with a photo; where I put some other rare Rover stuff.
James Dean, Old English Motor Company.jaguru at bellsouth.net-- Original
Message -----
From: <rogerdm at iprimus.com.au>
To: <rovernet at lyris.ccdata.com>
Sent: Monday, February 21, 2005 5:59 PM
Subject: RE: [ROVERNET - UK] Expansion Tank - next step

> Hi Ray,
> I have just bought a 3500 with the twin filters.  Having looked somewhat
> superficially I can see no reason why you couldn't remove them altogether
> or plumb them into one cannister the other side from the expansion tank.
>  Air is drawn into the manifolds through the cannisters thereby taking
> from the overflow pipes of the carby's.  If you remove them totally you
> breach regulations.  All you need to consider is to properly block the air
> bleeds on the inlet manifolds and provide two pipes to take overflow fuel
> from the carby's down the front of the block to just below the base of the
> radiator.  However Peter seems to have a better solution.  I think
> tanks are very helpful to efficient cooling.  cheers roger
> >-- Original Message --
> >From: "Peter Mitchell" <peterm at arach.net.au>
> >To: <rovernet at lyris.ccdata.com>
> >Subject: RE: [ROVERNET - UK] Expansion Tank - next step
> >Date: Mon, 21 Feb 2005 19:51:16 +0800
> >Reply-To: rovernet at lyris.ccdata.com
> >
> >
> >Hello Ray
> >
> >I have just had an SD1 expansion tank fitted to my P6B. It was a tight
> >squeeze, behind the brake booster.  Tomorrow I'll take a photo and send
> it
> >to your email address to show you how it went in, without removing the
> >canisters.
> >
> >Cheers
> >
> >Peter Mitchell
> >Perth WA [Also Western Australia to those in the US of A ]
> >
> >-----Original Message-----
> >From: rovernet-bounces at lyris.ccdata.com
> >[mailto:rovernet-bounces at lyris.ccdata.com]On Behalf Of Ray Wilkins
> >Sent: Monday, 14 February 2005 11:00 AM
> >To: rovernet at lyris.ccdata.com
> >Subject: [ROVERNET - UK] Expansion Tank - next step
> >
> >
> >Thanks to all those who responded to my request for details on how to
> >set up an expansion tank on my 1976 P6B. I am still concerned at the
> >lack of space. My car is still very original under the bonnet and there
> >just doesn't seem to be any room for the tank. I have been told however
> >that I could do away with one (or both) of the charcoal canisters but
> >I'm unsure exactly how the 'plumbing' would work. By freeing up the RHS
> >of the engine bay would then certainly give me enough room for the
> >expansion tank.
> >
> >So, 2 questions. One, What are the ramifications of doing away with one
> >or both charcoal canisters and Two, how would the plumbing work.
> >
> >Thanks in advance for your responses.
> >
> >Cheers,
> >
> >Ray Wilkins
> >Melbourne, Australia
> >1976 P6B
> >
> >
> >
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> >
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