Stage 1

Stage 1 in detail:

• Dip cleaning
• Pressure testing of the cylinder head and preparation for unleaded operation
• New valves, valve guides and springs incl. adjustment
• Replacement of valve seats / remilling
• Surface milling of valve cover
• Surface grinding of cylinder head
• Detailed documentation of all work steps taken as well as of all spare parts and/or wear and tear parts installed

Stage 2

Stage 2 in detail:

• Stage 1 plus:
• Immersion cleaning of engine block (special attention to water cooling channels); crack testing (pressure build up test) and painting
• Boring and honing of engine block
• New stud bolts
• Adjustment and fine balancing of crankshaft including flywheel as well as clutch plate and cover
• New oil pump
• Retrofitting to hydraulic chain tensioner
• New gaskets (incl. head gasket)
• Grinding and balancing of flywheel
• Grinding and fine balancing of camshafts (incl. documentation of valve timing, valve clearance and tick over)
• New main and con rod bearings
• Adjustment and fine balancing of connecting rods
• New timing chains
• New pistons, piston rings and gudgeon pins
• New bottom crankshaft seal
• New safety tab washers
• New heating and water hoses
• Replacement of frost plugs
• New water pump