They screw in. Unlike the front where you can press them in. There is a special tool that looks like a block and goes over the piston and sets in the groove on the piston. Screw in to press in piston. Be careful if you use pliers to screw inward. You can rip the rubber.
to compress the caliper you need to buy a tool (its the only way) some sites say you can use long nose pliers but you need to have six hands any motor spare stockists will have one they say universal but its fine for the volvo to compress the caliper it has to turn as well has be pushed only needs to be used on the rear the front just push in hope this helps
Buy a rear brake cylinder re-winder $60. However, you can also struggle with a C-clamp and needle nose pliers, pressure - turn, pressure-turn, pressure - turn. The rear pistons rotate as brake pressure is applied which allow them to lock with the parking brake.
With a caliper rewind tool. It is a key that fits into the notches or grooves on the caliper piston. Mine is about an inch cube with different configurations for model/car/year and works with a 3/8" drive ratchet. Can't recall for certain, but I believe you press and turn counter-clockwise.
how to install volvo 740 turn signal lens
I believe it is a 7mm hex.
The best way to free a stuck brake on a Volvo is with a caliper spreader. You can find one at an autoparts store or dealer.
The brake pads in a Volvo s40 can be changed by safely raising and propping the vehicle up. Removing the wheels and caliper. Slide the brake pads from the caliper. Before installing new pads spray brake cleaner. Install new pads.
It may not mean anything at all. Motor oil is used to lubricate and cool the pistons. If there's a lot on the side of the pistons, then it's possible that you need to replace the piston rings.
I would like to install a timing belt on my 93 960 volvo / how do I line up the cams with the crank shaft???
There should be no need to bleed the brakes after replacing the rear (or front) brake pads. Make sure you place a rag around the top of the fluid reservoir to catch any excess as you press the pistons back into the caliper body though. If the brake pedal has gone spongy after pad replacement this suggests that the piston seals have failed or the caliper cylinder facess have corroded. On mine the bleed nipples are on the caliper body.
yes
Its a motor. 2.3L is the displacement of the engine and I4 means inline 4. Which means that there are for pistons and they are in a straight line.