PUMP GP-UNIT INJECTOR HYD 10R8899 - Caterpillar

Rework old spacer plate to fabricate "figure 8" sections.Make reference to Cylinder Liner Projection in Testing and Adjusting for the complete procedure. On engines with aluminum spacer plates, use care in obtaining liner projection measurements to prevent marring the surface. To prevent damage to the spacer plate, use copper washers instead of hardened steel washers with the spacer plate bolts. Do not excessively tighten the spacer plate bolts.In addition, to increase the accuracy of liner projection measurements and also prevent damage, cut "figure 8" sections from an old spacer plate and install them under the spacer plate bolts. These are the center ribs between the cylinder holes from a scrapped 2W8601 Spacer Plate as shown in the illustration. The top and bottom radii of the "figure 8" section should coincide with the radii of the washers.1. Install gasket (10) and spacer plate (9) with bolts (1). Tighten bolts (1) evenly in four steps: 1st step ... 14 N m (10 lb ft)2nd step ... 35 N m (25 lb ft)3rd step ... 70 N m (50 lb ft)4th step ... 95 N m (70 lb ft)2. Install the tools as shown. Tighten bolts (4) evenly in four steps: 1st step ... 7 N m (5 lb ft)2nd step ... 20 N m (15 lb ft)3rd step ... 35 N m (25 lb ft)4th step ... 70 N m (50 lb ft)3. Measure cylinder liner projection with dial indicator (3) in 1P2402 Gauge Body (2) as shown. Measure at four places around each cylinder liner near the clamped area.Cylinder liner projection measurements for any cylinder liner must be ... 0.03 to 0.15 mm (.001 to .006 in)Maximum permissible difference between all four measurements ... 0.05 mm (.002 in)Maximum permissible difference between average projection of any two cylinder liners next to each other ... 0.05 mm (.002 in)Maximum permissible difference between average projection of all cylinder liners under one cylinder head ... 0.10 mm (.004 in)(5) 3H0465 Plate.(6) 8B7548 Push-Puller Crossbar.(7) 1P2396 Adapter Plate.(8) 3H0465 Plate (installed upside down).