Engine/Transmission (1998.5 - 2002) Need Help w/Leaking Fuel Line Nuts

[Greenleaf]

Installed new injectors and now the lines leak @ the nut threading into the cyl. head I have found this to be true on many of the ISB units in the fleet.



I have installed new O rings on the tube and tried different torque on the nut. I cleaned,cleaned, cleaned as always and this engine is no different. The Bluebird dealer said I'm making the nut too tight so I tried to make them just "snug" and no deal. Then I was told to pull the tube out of the head and turn it 1/2 turn. Still no deal



Sometimes they leak at slow idle speed. Sometimes at WOT and sometimes leak AFTER the engine is SHUT DOWN!!!!



I tried to reposition the line clamps and no deal there.



Anyone? ... ... ... ... ... . It ain't me because it happens to most all the engines when a line is removed and reinstalled.

 

[RustyJC]

Are you tightening the cross tube nuts after the injectors are torqued down?



Rusty

 

[Greenleaf]

Yes.



Most often I have to pull a line or two and never touch the injectors. This time around I tightened the injectors (to 75 inch lb) and then cleaned the tubes, installed new O rings and lubricated everything I was to lubricate.



It just now puked out diesel from five nuts AFTER it was shut down but was only leaking a small amount from one nut while running.

They leak the worst at slow idle speed.

 

[RustyJC]

Try THIS installation procedure. I've never had any problems by following it.



Rusty

 

[Greenleaf]

Wow. Thanks.



I'll read through that.