chilterns
09-25-2008, 09:12 AM
I have a Kelsey-Hayes type, rear master cylinder on my Suzuki Intruder VS800 trike (see image on link below)
http://www.chilterns.btinternet.co.uk/brakecylinder.htm
The master cylinder drives a pair of Lockheed Delphi calipers operating on 10 mm. thick discs on the rear wheels.
Although the brakes seem to operate OK, I just wonder if this is the best way to apply the load on the cylinder piston.
As can be seen, the force applied to the brake cable causes an eccentric load, on the piston, creating upward movement within the cylinder, thereby resulting in friction and wear to the cylinder wall and the leading edge of the piston.
Surely a more correct design would be to apply the force to the piston concentrically to the end of the push rod, as shown by the yellow arrow.
I would welcome any thoughts from members and would appreciate details of how the rear master cylinder is operated in their particular case, with images if possible.
http://www.chilterns.btinternet.co.uk/brakecylinder.htm
The master cylinder drives a pair of Lockheed Delphi calipers operating on 10 mm. thick discs on the rear wheels.
Although the brakes seem to operate OK, I just wonder if this is the best way to apply the load on the cylinder piston.
As can be seen, the force applied to the brake cable causes an eccentric load, on the piston, creating upward movement within the cylinder, thereby resulting in friction and wear to the cylinder wall and the leading edge of the piston.
Surely a more correct design would be to apply the force to the piston concentrically to the end of the push rod, as shown by the yellow arrow.
I would welcome any thoughts from members and would appreciate details of how the rear master cylinder is operated in their particular case, with images if possible.