GASKET-HOUSING COVER 7M0841 - Caterpillar

Engine: 3116 (S/N: 2SG1-UP; 4KG1-UP; 1NJ1-UP; 3RJ1-UP; 7HJ1-UP; 9GK1-UP; 2FR1-UP)Excavator: 320 (S/N: 9WG1-UP; 4ZJ1-UP; 3RK1-UP; 3XK1-UP; 4BK1-UP; 7WK1-UP; 1TL1-UP) 322 (S/N: 7WL1-UP) 322 L (S/N: 8CL1-UP) 322L (S/N: 8ML1-UP; 9RL1-UP) 322N (S/N: 9JL1-UP) 325 (S/N: 7TG1-UP; 8JG1-UP; 9SG1-UP; 7LJ1-UP; 2SK1-UP; 5WK1-UP; 6KK1-UP; 8NK1-UP; 8YK1-UP; 9ZK1-UP; 2SL1-UP; 3LL1-UP) 325L (S/N: 7CJ1-UP; 2JK1-UP) E240B (S/N: 8SF1-UP; 9PF1-UP; 6MG1-UP) EL240B (S/N: 5WG1-UP)Track-Type Loader: 953B (S/N: 5MK1-UP)Wheel Loader: 950F Series II (S/N: 4DJ1-UP; 5SK1-UP; 8TK1-UP; 2LM1-UP) 950F (S/N: 6YG1-UP) 960F (S/N: 1YM1-UP)Wheel Tractor-Scraper: 613C Series II (S/N: 8LJ1-UP)Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
Illustration 1 g02029109
Fourteen 7W-5426 Camshaft As gears are missing a machining operation. The fourteen camshaft assemblies are believed to have been shipped between D01M09Y09P47 and D31M10Y09P47. Refer to the example of the date code packaging label in Illustration1. Camshaft gears with the casting code of G7W-4070 may not have the required machining on the back side of the gear. The lack of machining causes interference between the timing gear and the bolts on the timing plate. The results are a scraping noise, damage to the bolts and damage to the camshaft gear.Solution
Illustration 2 g02029088
The front side of the camshaft gear (1) suspected of lacking the essential machining process.
Illustration 3 g02029106
The ledge (2) indicates the lack of machining on the back side of the camshaft gear.
Illustration 4 g02029112
The front of the camshaft gear (1) after the timing cover is removed.Show/hide tabl