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timing marks are guides for when you put in your timing belts to ensure that at top dead center of the piston it should not hit the valves as well as serve as a guide in setting your timing. There are marks in the crank gear and cam shaft sprocket that should be pointing up. You can also determine the top center of the piston by putting a long screwdriver inside the empty spark plug hole. The piston should push the screwdriver all the way out if the piston is at the "top" position.
You will have to use a c-clamp or brake piston compressing tool to get that piston back in, while you have the brake master cylinder fluid reservoir cap off.
Get a C Clamp large enough to fit from the back of the caliper to the piston. Put a piece metal across the the piston and tighten the c clamp onto the piston as far as it will go. This will push the piston in to put the pads on the caliper and to be able to fit the caliper back onto the brake rotor after installing the pads.
yes it does. i put a thick piece of flat steel across the piston and use a C-Clamp to compress it. some people just put the C-Clamp inside the piston but in either case the clamp really makes it easier.
The brakes have an automatic emergency brake adjustment and because of this a special technique is required to get the piston pushed back in. Hopefully you didn't force it and damage it. You can also buy a special tool that will do the job but you can also use a C-clamp and a pair of channel lock pliers. Put the C-clamp on and put a little bit of pressure on the piston. With the channel locks grab the metal edge of the piston and twist it (can't remember the direction but it will be apparent when you do this) until the C-clamp loosens up a bit. Adjust the C-clamp to put some pressure on the piston again and twist the piston again. This will slowly work the piston back to where you can install the new pads. Be careful not to pinch the rubber boot when you are grabbing the piston edge with the pliers.
You will need a Rear Caliper Piston Windback Tool to put the Piston back in the Caliper. Sometimes you can improvise and use a Prybar or something that fits in the slots to give you enough leverage to turn the Piston clockwise back into the Caliper.
youll have to clamp the brake hose,undo the bleed screw,and push the piston[s] back in,then shut off bleed screw,undo clamp on hose,and try assembly again.bracket first,then pads into bracket,then slide caliper over pads,and then put bolts holding caliper back in ,with a bit of grease on the slides.
If they are drum brakes, make sure you turn the self adjustment screw all the way closed. If they are disc brakes you need to use a brake tool to screw the calliper piston in. Just loosen the bleeder valve and screw the piston in counter clockwise.
There is actually a special tool for pushing the piston back, you could try and put some force on the piston but at the same time you have to turn the piston because the hand brake works of there aswell and there is some thread inside that keeps on adjusting the caliper piston as the pads waer down.
Take special care not to damage the calliper rubbers when turning the piston
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