Dear Lancia-friends,
The brakes of our Lancia's (my Aurelia B 20 GTS 5° serie and Hans' Appia 3° serie) are sometimes not reliable and are 'gripping' at unpredictible moments. The brake-pedalpoint is displacing from the normal stand (middle) to the top of the pedal. The more on the Aurelia, the clutch-pedal (hydraulic circuit) is suddenly going down to half a stroke.
This phenomen is apearing by an oildispenser under normal pressure and with no or few pedal-use.
In my opinion, but also by experienced mecanics, the brakingshoes are correctly mounted: there is no friction in normal conditions and the brakes are working synchronically on the 4 wheels (the B 20 was tested on a brake rollertestbench).
I hope that someone outside can help us, because we don't understand the problem !!
Greetings, Erik (en Hans)
Erik Vermaelen
Voorspoedlaan 13
B 1700 Dilbeek
Belgium
Tel: +32/2/569.36.19
Gsm:+32/476/42.74.70
e-mail: erik.vermaelen@skynet.be
Braking problems Aurelia & Appia
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Brian Long
Re: Braking problems Aurelia & Appia
Erik,
Regarding the brakes: have you altered the length of the linkage that pushes on the master cylinder piston? There are two small holes in the master cylinder both of which have to be uncovered by the cup when the brake pedal is at rest. One hole is a compensation hole and the other is connected to the fluid reserve tank.
Are the hoses in good condition? They can swell internally and trap pressure between the hose and the wheel cylinders.
Clutch slave cylinder: these are notorious for leaking because the cylinder 'pulls' its load rather than 'pushing' it. This means that there is a pressured seal where the rod comes out of the cylinder. Again, check the condition of the hose; from memeory I think there is one going to the cylinder.
Good luck,
Brian.
Regarding the brakes: have you altered the length of the linkage that pushes on the master cylinder piston? There are two small holes in the master cylinder both of which have to be uncovered by the cup when the brake pedal is at rest. One hole is a compensation hole and the other is connected to the fluid reserve tank.
Are the hoses in good condition? They can swell internally and trap pressure between the hose and the wheel cylinders.
Clutch slave cylinder: these are notorious for leaking because the cylinder 'pulls' its load rather than 'pushing' it. This means that there is a pressured seal where the rod comes out of the cylinder. Again, check the condition of the hose; from memeory I think there is one going to the cylinder.
Good luck,
Brian.