940 L4-2320cc 2.3L DOHC VIN 89 B234F FI (1991)
Remove valve cover
Turn engine to TDC (ignition) in No.1 cylinder
Cam pairs on intake/exhaust sides of No.1 cylinder should be facing away from tappets.
NOTE: Check is carried out with tappet in contact with base circle of cam (i.e. cam profile must not be in contact with tappet).
Check tappets
Depress tappets firmly with thumb or brass rod.
Check following tappets:
No.1 cylinder intake/exhaust
No.2 cylinder intake
No.3 cylinder exhaust
Turn engine to TDC (ignition) in No.4 cylinder
Check following tappets:
No.2 cylinder exhaust
No.3 cylinder intake
No.4 cylinder intake/exhaust
Replace any tappet which feels spongy
Tappet replacement: