Heavy Equipment Repair Questions? Ask an Expert Now.
hello what all have u tried?
put a new injector into #4 cylinder
hello is there anyone available
did the ecm tell u it was number 4?
hello can u give me some answers
did the code go away after u replaced it?
we did not have a meeter to check the code
ok,how did u figure out #4 was the bad inj
disconected the wire and truck ran same , disconect wire 3 & 5 truck ran worse so i figer number 4 was not fireing
that is a good way to ck it,what does it do now when u diconnect the wire?
some times its worse sometimes its not
have u cked for bent push rods or broke or outta adjustment intake and ex valves on #4?
how about proper voltage to the inj?
whats the best way to check voltage
with the truck running unplug the plug o the inj and ck it using a multimeter not a test light
how much voltage should i have
another thing to ck for is with the truck running, visualy look and see if the int and ex rockers are moving up and down the same height compared to the others.
thats already ben done
should have 12.50 and above,some of the newer ones run 110v and up,
well work on it again tmrw , thanks for your input
The valves and injector are set at the same time
A mark -----cylinder 1-6
B mark -----cylinder 5-2
C mark------cylinder 3-4
fireing order is 1-5-3-6-2-4
intake valves 14 thousands
exhaust valves 27 thousands
Check the valve rocker levers on cylinder number 1 to see if both valves are closed.
Both valves are closed when both rocker levers are loose and can be moved from side to side. If both valves are not closed, rotate the accessory drive one complete revolution; and align the "A" mark with the pointer again.
FYI--------- The Cummins N14 was discontinued around 2000, and has been replaced by the Cummins ISX !!So there are no Newer N 14............. ALSO