A、loss of flow in the fuel system
B、loss of pressure in the air system
C、loss of flow in the lubricating system
D、loss of pressure in the lubricating system
更多“Excessive clearances in the main or crank-pin bearings will sometimes be indicated by （） before any bearing knock is heard.”相关的问题
A、clogged lube oil piping B、excessive valve-guide clearance C、high lube oil viscosity D、low lube oil temperature
A、excessive piston to liner clearance B、excessive dirt beneath the piston crown that reduces heat transfer C、faulty nozzle spray D、all of the above
A、a low load on that cylinder B、sluggish piston ring action C、excessive piston crown cooling D、excessive clearance of piston pin
A、insufficient fuel supply due to fuel pump valves sticking or leaking B、excessive mechanical clearance between the piston crown and cylinder head C、excessively worn fuel pump plunger D、excessive exhaust back pressure
A、worn valve seats B、worn main bearing C、excessive valve clearance D、weak rocker arm springs
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