a piston that uses a thread to create pressure. think of a bike pump, instead of pushing down on the handle, you twist it. this will make it easier at higher pressures rather than trying to use brute strength to push the pump down.
The piston rings create a seal between the piston and the cylinder wall.
A piston seal is a gasket designed to keep fluid from leaking around the piston. Piston seals are commonly used in brake calipers.
It is a spring metal sleeve that goes over a piston to compress the rings so that the piston can be install in the motor. It tightens down on the piston, forcing the rings into the grooves in the piston then you tap it into the cylinder.
With a piston ring compressor.
Poor lubrication. Excessive rpm's. Defective piston. Problem with the wrist pin, bushing or piston rod.
Brake piston? Front use a "C" clamp to compress Rear - Piston is threaded turn clockwise to compress (water pump pliers?)
It is threaded-They make a special tool (NOT EXPENSIVE) available at Sears
If it is the front brake use a "C" clamp to retract piston If it is the rear and the parking brake is used by this caliper piston is threaded and a special tool (not expensive) available at Sears or auto parts to "screw" piston into caliper body
It is threaded a special tool (not expensive) is available at Sears or auto parts It is threaded a special tool (not expensive) is available at Sears or auto parts Yes it is threaded but advanced auto parts will let you borrow the tool, you dont have to purchase it.
Use a "c" clamp (front) to slide piston into caliper body Rear piston is threaded and requires a special tool to screw piston into caliper body Tool not expensive and available at Sears or auto parts
A special tool (not expensive available at Sears or auto parts) is required Piston is threaded
A special tool is required (not expensive available at Sears or auto parts) because piston is threaded to operate the emergency brake
If rear brake caliper is used for emergency brakes also - piston is threaded and requires a special tool (not expensive available at Sears or auto parts) to screw into caliper housing
It's the metal threaded portion of the body that screws into the cylinder head. Too long and the piston can get damaged. Too short and the cylinder will not fire properly
Remove caliper mounting bolts Slide caliper off rotor Use a "C" clamp to fully retract piston into caliper body If parking brake is used on this caliper piston is threaded and a special tool (not expensive) is required to thread piston into caliper body
If parking brake is operated through service brake--then piston is threaded into caliper body--special tool is needed (not expensive) available at Sears or auto parts
Beginning with MY 1988, the 900s had the same brakes as the 9000s. The rear brake piston must be turned in with a special wrench, not compressed as in earlier 900s.According to the manual (you do have a manual, don't you!) you need to remove the threaded screw plug covering the adjusting screw. The piston adjusting screw requires a 4mm Allen head wrench.