Vibration Damper Inspection; Re-Tighten Bolts And Nuts - Volvo Penta D25A MS Operator's Manual

Maintenance: Engine
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Vibration Damper Inspection

NOTE! When installing a damper protective
cover to the engine, do not use a cover
enclosing the damper.
Visually check for fluid leaks, flaws, distortion, or dis-
coloration or flaking of painted surfaces. Also check
for swelling (by measuring with a scale), and fluid le-
aks past staked portions.

Re-tighten Bolts and Nuts

Re-tighten the bolts and nuts on the following compo-
nents:
* Timing gear case
* Crankshaft pulley
* Mounting brackets
* Exhaust manifold
* Turbocharger
* Cylinder heads
Check the cylinder head bolts and re-tighten them in
number sequence (1-2-3-4-5-6) if necessary. The
tightening torques of the bolts and nuts can be found
in technical data section of this manual.