[xj-s] Simple, yet most important question

XJ-S
1

hi,
Going to be fitting a new radiator hose to replace a dying one this
weekend (along with nice new 8.5mm Magnecors and V-plugs), however I cant
find the cooling system bleed points. The haynes manual has a nice picture
of it but doesnt show where it is and i cant find it (most likely hidden in
plain sight). Also the location of the suggested point for adding another
bleed location (at the heater valve i think?) in the engine compartment
would be useful.

Chris

2

Chris Chennell wrote:

however I
cant find the cooling system bleed points. The haynes manual has a
nice picture of it but doesnt show where it is and i cant find it
(most likely hidden in plain sight).

Top left end of radiator. There’s a hole in the top support rail.
There’s either a simple hex-headed brass plug or a winged valve;
since you can’t find it, I’m betting on the simple brass plug.

Also the location of the
suggested point for adding another bleed location (at the heater valve
i think?) in the engine compartment would be useful.

Install a 5/8" “flushing tee” in the hose to the heater valve. In
the very highest place on the hose, whereever that happens to be on
your car.

Park the car with the nose uphill when filling. Take the cap off the
tee and leave it off until coolant starts coming out, then cap it.
Continue filling until coolant comes out the bleed plug on the
radiator, then plug that. Fill, warm up/drive (climate control
system OFF), top off.

– Kirbert

3

Chris,

I replaced my hoses some time back when I replaced the front crankshaft seal.
Try as I may, I can’t get some of the joints to seal. I get very small leaks,
i.e.,
no drips to the ground, but a coolant smell and traces of bright green, where
the lower hoses connects to the radiator and to the water pump, at one of the
upper hoses
at the radiator, and at the heater hose bleed tee Kirby recommends. I do not
know if other people
have had such trouble, but some listers
have suggested using a non hardening sealer, which both makes the hoses slip on

easier, and forms a good seal. I will probably take the hoses off and do it
myself
at some point. Just a thought for your consideration.

Ed sowell
76 XJ-S

Chris Chennell wrote:> hi,

Going to be fitting a new radiator hose to replace a dying one this

weekend (along with nice new 8.5mm Magnecors and V-plugs), however I cant
find the cooling system bleed points. The haynes manual has a nice picture
of it but doesnt show where it is and i cant find it (most likely hidden in
plain sight). Also the location of the suggested point for adding another
bleed location (at the heater valve i think?) in the engine compartment
would be useful.

Chris

4

Ed

Two areas that you might look at.

  1. Make sure the engine part that the hose attaches to is clean.
    Aluminum and copper parts tent to form cruds and will sometime pit so
    that a seal is almost impossible. I use emery roll sandpaper to wrap
    around the part so I can sand properly.

  2. Use high quality new hose clamps.

Bernie>

I replaced my hoses some time back when I replaced the front crankshaft seal.
Try as I may, I can’t get some of the joints to seal. I get very small leaks,
i.e.,
no drips to the ground, but a coolant smell and traces of bright green, where
the lower hoses connects to the radiator and to the water pump, at one of the
upper hoses
at the radiator, and at the heater hose bleed tee Kirby recommends. I do not
know if other people
have had such trouble,
Ed sowell
76 XJ-S
–

                                    http://bernardembden.com/

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