Volvo Penta — Timing gear cover, fitting
Repair & overhaul
From a Volvo Penta service manual — check it applies to your exact model before use.
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Before you start
- Apply the sealant and fit the cover within 20 minutes.
Procedure
- Clean mating surfaces and scrape off all remains of sealant.
- Apply a bead of sealant (1161231-4) on timing gear cover; apply Permatex on pan gasket.
- Oil in the sealing rings for the crankshaft.
- Fit the cover within 20 minutes.
- Check polygon hub and mating surface; remove cutting marks with fine emery paper.
- Grease crankshaft journal with molybdenum disulphide and fit centering part for tool 2656.
- Heat polygon hub to approx. 100°C and tap onto shaft with drift 2656.
- Fit washer and centre screw; tighten while hot to 400 Nm, then when cooled to 550 Nm.
- Fit vibration damper and pulley and remaining equipment.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Sealant 1161231-4
- Polygon hub while hot 400 Nm
- Polygon hub cooled 550 Nm
Source: Volvo Penta service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.