How to overhaul Mercedes-Benz gl350 diesel engine

If it is a timing chain, it is necessary to replace the timing chain and tensioner, except for machining, boring the cylinder, grinding the shaft and cold pressing the conduit. It is also necessary to replace overhaul package, oil seal before bending, oil seal after bending, camshaft oil seal, oil pump, comparison valve, etc.

Sometimes it is necessary to replace external accessories, such as clutch plates. In short, it is necessary to replace all uncertain parts to repair the engine and ensure its performance.

The mechanical part generally includes a set of valve intake and exhaust, a set of piston rings, a set of cylinder liners (if it is a 4-cylinder engine), two thrust plates and four pistons.

General cooling system mainly includes water pump (water pump blade corrosion or water seal leakage), upper and lower pipes of engine, large circulating iron pipe, small circulating rubber hose, throttle pipe (aging expansion must be replaced) and thermostat.

The fuel part generally includes the upper and lower oil rings of the fuel injector and the gasoline filter; Ignition part: replace the high-voltage line if it rises or leaks, and hit the ignition piston; Upper and lower oil rings of nozzle and gasoline filter.