Gunson Eezibleed 7
Further Hints and Tips:
Some cars’ brake systems are very difficult to bleed; a pressure bleeder such as this
invariably gives better results than a non-pressure method such as the conventional two
person method, and most vehicle manufacturers recommend pressure bleeding for both
brake and clutch hydraulic systems.
1. Make sure that the cylinders on all four wheels are bled.
2. Always use new brake fluid and do not re-use any brake fluid that has passed through
the system.
3. If the pressure bleeding alone does not work (i.e. the brake pedal remains ‘spongy’),
try pressing the brake pedal while the pressure bleeding is in operation (i.e. carry out
pressure bleeding and conventional bleeding simultaneously).
4. Try bleeding the brakes while the car is tilted either forwards or backwards.
5. If the master cylinder has been removed or dismantled for any reason it may, in the
case of certain cars (particularly early Minis and the Jensen Interceptor) be very difficult
to bleed the brakes satisfactorily. In this case it is necessary to bleed the master
cylinder on its own, before fitting the pipes to it. Ensure that it is completely filled with
fluid before connecting it to the rest of the brake system.
6. If any component of the brake system (such as the master cylinder) has been
dismantled, it will be necessary to consider the possibility that the parts have been
incorrectly re-assembled or incorrect components have been fitted. Dismantle the part
and start again.
7. The recommended setting of pressure for the device (20 psi) is intended purely as
a guide. In some cases a lower pressure will give adequate flow, possibly as low as
10 psi for older (classic) vehicles. In some vehicles, a higher pressure (over 10 psi) is
better for bleeding the brakes of the rear wheels.
8. The device will not fit the reservoirs of some cars and indeed, some manufacturers
have been known to fit different types of reservoir to the same model of car. It will
not fit Nissan, Honda and some Toyotas. There are several ways of overcoming this
problem. One way is the multipurpose cap, which is held to the reservoir by means of
a strap which passes beneath the reservoir. Another method is to buy a spare cap and
drill a 10mm hole in it. Where the cap has a removable centre it is possible in some
cases, to make a disc with a 10mm hole and temporarily fit this to the car’s normal
reservoir cap. If this method is used it is
vitally important
to pressure-test the system
without fluid in the Eezibleed bottle.
9. When finished, always clean the pressure vessel bottle (A), the bottle cap assembly
(B) and the bleed valve hose (C) with brake cleaning fluid or similar (old brake fluid will
attack the rubber seals). Then dry off and store in a dry place.
