Westerbeke — Engine Oil and Filter Change
Maintenance · Engine lubrication system
From a Westerbeke operator's manual covering: 16.0 BEDA, 20.0 BED, 25.0 BED, 32.0 BEDA. Check it applies to your exact model before use.
Applies to: Westerbeke 20.0 BED, Westerbeke 25.0 BED
Before you start
- Used engine oil contains harmful contaminants; avoid prolonged skin contact.
Parts for this job
- 032874 Oil filter — Westerbeke 20.0 BED Amazon eBay $33.00
- 032874 Oil filter — Westerbeke 25.0 BED Amazon eBay $33.00
Part numbers from the service-parts lists for Westerbeke 20.0 BED, Westerbeke 25.0 BED. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Run engine until warm, then shut down.
- Discharge used oil through the sump drain hose; replace hose in bracket and cap securely.
- Remove the old oil filter; confirm the rubber sealing gasket comes off with it.
- Wipe the filter sealing surface on the engine block free of oil.
- Apply a thin coat of clean engine oil to the new filter gasket.
- Screw the filter on and tighten firmly by hand; do not over-tighten.
- Fill with new oil to, but not over, the high mark on the dipstick.
- Run engine and check oil pressure and for leaks around filter and drain.
Tools required
- Filter wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Sump capacity 6.15 liters (20/25 kW) or 6.0 liters (32 kW), not including filter
- Lube oil drain hose capped end thread size 1/4 NPT
Full service-parts list: Westerbeke 20.0 BED →, Westerbeke 25.0 BED →
Source: Westerbeke operator's 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.