Section 0 - Engine Disassembly and Assembly - Group 00 Engine Assembly (0-02) M11 Page 0-87 Idler Gear Assemblies - Installation Three idler gear assemblies are used: water pump/lube pump idler gear (1), camshaft idler gear (2), hydraulic pump idler gear (3). Each idler gear assembly consist of: three retaining capscrews, gear retainer (4), front thrust bearing (5), idler gear (6), rear thrust bearing (7), idler gear shaft (8). The camshaft idler gear assembly includes a wear plate (9).
Camshaft Idler - Installation When installing the camshaft idler gear (1), make certain the timing mark ‘0’ on the crankshaft gear (2), timing mark on the camshaft gear (3) and timing mark on the accessory drive gear (4) are aligned as shown. The marks on the idler gears should match the same mark on each of the other gears. Use Lubriplate W 105, or equivalent, to lubricate the wear plate, thrust bearing and idler gear. Install the camshaft idler gear wear plate (9). Caution: The grooved side of the rear thrust bearing must be facing toward the gear to prevent damage to the gear and engine during engine operation. Install the idler gear shaft (8) and rear thrust bearing (7).