SRV-SRB-23-031
Service Bulletin Details
Public Details for: SRV-SRB-23-031
Precautions to follow during crankcase cleaning. Applicability: all models. This service bulletin informs dealers and service managers about precautions in using abrasive cleaners for engine component sealant, and in particular the crankcas
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Precautions to Follow During Crankcase Cleaning All Models Service Repair Bulletin SRV-SRB-23-031 Date: To: From: June 16, 2023 Dealer Principal, General Manager, Service Manager, North American Dealer Network Richard Kenton, Technical Director Dan Schwartz, Service Area Manager Dear Dealers, This bulletin is to inform you about the precautions to follow for cleaning the engine component sealant, and in particular the crankcase covers. In fact, we have found cases of engine breakage after workshop operations (such as water pump replacement) caused by the presence of abrasive material coming from the tools used for cleaning, such as 3M-Scotch Brite sponges, sandpaper, and/or abrasive stones. Crank pin (clutch side) Crank pin (flywheel side) Electron microscope images from Ducati laboratory 1292 Reamwood Ave. Sunnyvale CA, 94089 Tel +1 650 933 9800 1/6 Precautions to Follow During Crankcase Cleaning All Models Service Repair Bulletin SRV-SRB-23-031 The bulletin contains 3 main attention points: 1. Take care and practice cleanliness during the operation, and in particular protect the oil passages inside the crankcase and crankshaft. The ducts indicated by the yellow arrows, in fact, bring the oil to the bearings without passing through the paper filter. The red arrow, instead, indicates the duct to the water pump. 2. Use only the tools recommended by Ducati. 3. DO NOT USE abrasive materials (such as 3MScotch Brite). The instruction below describes the steps to follow for cleaning the mating surfaces of the crankcase to clutch cover, and of the crankcase and water pump, for V4 engines: Clutch Cover 1. Before cleaning the sealant from contact surfaces, plug the indicated holes with silicone blocks (1). In addition, protect the indicated areas with a lint-free cloth (2), preventing any debris or other items from falling into the engine. Engine side Clutch cover side 1292 Reamwood Ave. Sunnyvale CA, 94089 Tel +1 650 933 9800 2/6 Precautions to Follow During Crankcase Cleaning All Models Service Repair Bulletin SRV-SRB-23-031 2. Remove the sealant beads with a suitable plastic chisel, as shown in the figure. Engine side Clutch cover side 3. Use a commercial product (e.g. brake cleaner) for mechanical parts and a cloth to remove the sealant residues. 1292 Reamwood Ave. Sunnyvale CA, 94089 Tel +1 650 933 9800 3/6 Precautions to Follow During Crankcase Cleaning All Models Service Repair Bulletin SRV-SRB-23-031 4. For any sealant residues not removed in the first step, use a brush with brass bristles. WARNING Do not use a 3M-Scotch Brite type steel wool pad, as that shown in the image below, because it may leave residues of abrasive particles of alumina and silicates, not visible to the naked eye. 5. Finally, check with a shop light for any possible presence of residues left by the brush. 1292 Reamwood Ave. Sunnyvale CA, 94089 Tel +1 650 933 9800 4/6 Precautions to Follow During Crankcase Cleaning All Models Service Repair Bulletin SRV-SRB-23-031 Water Pump 1. Before removing the sealant from the contact surfaces, cover the coolant passage hole with a silicone block and a cloth below, as shown in the figure. 2. Remove the sealant beads with a suitable plastic chisel, as shown in the figure. Engine side Water pump side 1292 Reamwood Ave. Sunnyvale CA, 94089 Tel +1 650 933 9800 5/6 Precautions to Follow During Crankcase Cleaning All Models Service Repair Bulletin SRV-SRB-23-031 3. Use a commercial product (e.g. brake cleaner) and a cloth to remove the sealant residues; do not exceed so as not to impair the sealing capacity of the oil seal. Engine side Water pump side WARNING Any engines replaced under warranty showing contaminant due to a wrong repair process can be charged back. For questions about this Service Bulletin, please contact your Service Area Manager. 1292 Reamwood Ave. Sunnyvale CA, 94089 Tel +1 650 933 9800 6/6