944 S L4-2479cc 2.5L DOHC (1987)
Oil Pressure Regulator Valve: Service and Repair
Removing and installing the pressure reducing valve
1 - Set screw
2 - Pressure reducing valve
3 - 0-ring
4 - 0-ring
1.
Remove the cylinder head cover and undo the set screw by 2 turns.
2.
Ease the pressure reducing valve out of the seat with a screwdriverand take out upwards.
3.
Replace the 0-rings and apply a light film of oil before installation.
4.
Tighten the set screw carefully until you can feel the stop, then turn back by 45° The screw must not be loose. (Microencapsulated, renew if
necessary).