Fw: Over Heating of E-28 535i

["Ron J" <ron@xxxxxxxxxxxxxxx>]

- ----- Original Message -----
From: "Ron J" <ron@domain.elided>
To: "BMW - Digest" <bmw-digest@domain.elided>
Sent: Monday, May 12, 2003 11:54 AM
Subject: Re: Over Heating of E-28 535i


> Hi Chris,
>
> Thanks for the info.  It was a bad resevoir cap after all,  I am not
losing
> any coolant anymore, and I have a new cap.
>
> Cheers
> Ron J
> 85 535i
> 73 911s 2.7 (poss for sale)
> ----- Original Message -----
> From: "Chris Northover" <chris.northover@domain.elided>
> To: "BMW - Digest" <bmw-digest@domain.elided>
> Sent: Friday, May 09, 2003 8:07 AM
> Subject: Over Heating of E-28 535i
>
>
> > >Ron's E-28 has been spewing coolant of late, with temp gauge in the 3/4
> > area. <snip>
> >
> > This happened to me with my E28 with an M30 motor.  All sorts were
> > suggested, and all suggestions had some validity; crook radiator,
pressure
> > cap, top hose, bottom hose, water pump, thermostat....
> >
> > But it wasn't any of these things.  The car would run fine until I came
up
> a
> > long hill at a reasonably fast pace.  The radiator would go cold as if
> there
> > was no water in it, and steam and coolant would fly out of the overflow
> > pipe.  The temp guage would go into the red.
> >
> > It was, wait for it, the tiny bleed pipe that came off the top of the
> > radiator leading to the coolant tank.  It was blocked at the radiator
> end -
> > I took it off and couldn't blow through it. When it is blocked,
presumably
> > air locks form in the cooling system. It required me to hook the
> obstruction
> > out with a tiny wire hook.  (Thanks to Sonny Bonito Sr for that advice)
> >
> > Good luck Ron
> >
> > Chris Northover            chris.northover@domain.elided
> >
> >
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