Cleaning Crankcase Oil Passages

NOTE:
- The oil passages in the crankcase are plugged (i.e. closed) with sheetmetal covers during production.





- If the sheetmetal covers have been removed e.g. to clean the oil passages after bearing damage has occurred, the sheetmetal covers have to be replaced with service aluminum plugs.
- Sheetmetal covers have not been released as spare parts!

Replacement Aluminum Plugs





The following oversize plugs are available for repairs:

Plug (A): 23 mm, (2 plugs)
Plug (B): 14 mm,

Removal
Drill out plug (using a 6.5 mm bit) and tap M8 thread. Pull out plug using a "home-made" extractor consisting of an M8 bolt, spacer ring and washer. Push out the opposite plug, for example using a 10 mm dia. pipe.

Installation
Apply Optimoly HT, or equivalent copper paste, to plug and press plug in flush.