A、carbon buildup in the exhaust manifold
B、overcooling of the exhaust manifold
C、eroded muffler baffle plates
D、high injection pressure
更多“Excessive diesel engine back pressure may be an indication of （）”相关的问题
A、cold intake air B、excessive compression pressure C、excessive cylinder lubrication D、a light load
A、A.excessive ring action B、B.excessive ring temperature C、C.improper ring rotation D、D.excessive ring face wear
A、A.Excessive valve train lubrication B、B.Leaking standby oil cooler core C、C.Excessive lube oil pressure D、D.Excessive lube oil in the system
A、A.increased engine breathing efficiency B、B.excessive valve lash C、C.excessive lube oil consumption D、D.lower than normal fuel consumption
A、a cracked cylinder liner B、excessive water in the fuel C、a leaking intercooler D、excessive moisture in the scavenge air
A、water in the fuel B、cold lube oil C、excessive starting air pressure D、excessive fuel pressure
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、excessive lube oil consumption B、lower than normal lube oil temperature C、higher than normal exhaust back pressure D、excessive crankshaft end play
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