Diesel leaking near injectors

   / Diesel leaking near injectors #1  

coloradotrout

Gold Member
Joined
Aug 19, 2005
Messages
350
Location
Eastern KS
Tractor
JD 4100 HST CUT w/Yanmar 3TNE74 | JD 300 Lawn
My 4100 cut is leaking a bit of diesel near the glow plugs. I tightened one, but still leaking. Any suggestions? Google suggested maybe the lines.
 
   / Diesel leaking near injectors #2  
Check the lines for cracks, could be a crack under the nut on the injector. Clean with brake cleaner, let dry and than look were it gets wet.
Be careful with the high pressure!
 
   / Diesel leaking near injectors #3  
Many injectors have a lightweight return line to permit excess fuel to return to the tank. Check that none have shaken loose. They frequently have plastic fittings which can crack, too.
 
   / Diesel leaking near injectors #4  
Probably the aluminum washer/gasket under the return line..??
Does it have a return line & a large nut holding it down onto the injector.??
IF SO, they have a aluminum gasket/washer under the line.. SOMETIMES u can flip the washer over & reuse it..
BUT my thinking is.. if u took the time to take them all off, replace them ALL..
 
   / Diesel leaking near injectors #5  
I agree with thepumpguysc I usually find one leaks and pend more time and effort in assembly and reassembly over and over
wishing I had just replaces them all (specially when the $ is pretty low on the washers)
 

Tractor & Equipment Auctions

2008 CATERPILLAR 304C CR EXCAVATOR (A51406)
2008 CATERPILLAR...
2008 Dodge Avenger Sedan (A55758)
2008 Dodge Avenger...
2010 Toyota Prius Hybrid Hatchback (A53424)
2010 Toyota Prius...
1992 Peterbilt 377 Sleeper Cab (A55301)
1992 Peterbilt 377...
UNUSED LANDHONOR HPF-11-3000G HYD PALLET FORKS (A54757)
UNUSED LANDHONOR...
New CFG 680 Skidloader Pounder (A50775)
New CFG 680...
 
Top