Refitting Oil Pump and Pressure Relief Valve - 300Tdi Engine
ENGINE
OVERHAUL
33
Oil pump and oil pressure relief valve - refit
Oil pump
1. Thoroughly clean timing belt rear cover,
remove all traces of gasket using suitable
gasket removal spray and a plastic scraper.
Remove all traces of sealant using solvent
from kit GUG 705548GM.
2. Ensure oil pump cover screw holes are clean
and dry.
3. Clean oil pump rotors and recess, lubricate
rotors and recess with engine oil.
CAUTION: Ensure alignment marks made
during dismantling are not erased.
4. Position inner and outer rotors in housing
ensuring that reference marks are aligned.
5. Apply bead of sealant from kit to outer edge of
oil pump cover, fit cover to housing ensuring
that reference marks are aligned.
6. Fit oil pump cover, fit and progressively tighten
7 screws.
7. Check that pump rotates freely.
Oil pressure relief valve
1. Thoroughly clean oil pressure relief valve
plunger, spring and relief valve bore then
lubricate components with engine oil.
2. Insert plunger and spring into bore.
3. Smear threads of relief valve plug with Loctite
577.
4. Fit plug and tighten to 17 Nm.
