leaking injectors - Competition Diesel.Com

K204DR · 05-05-2021, 06:18 PM

my injectors are leaking on two of them. coming up from the hold down nut. I need to take them out and loosen and retorque the nozzle end I guess. any other ideas on getting them to not weep? just put them in a few weeks ago and was smelling diesel, but took a few weeks to start showing up.

*Smokem* · 05-05-2021, 09:42 PM

It's almost always the return gasket leaking and fuel running down onto the hold down nut.

K204DR · 05-06-2021, 07:52 AM

i'll blow some air on it and check it out again. the return seals are new, maybe I have a loose one.

bigstacks95 · 05-06-2021, 10:52 AM

Lately I've gotten a few sets of injectors from a really well known company with the nozzle retaining nuts loose. I would check those, throw a new washer on the nozzle and a new U washer on the return and you should be good

*Smokem* · 05-06-2021, 01:27 PM

If the nozzle retaining nut was that loose it would have shown on a leak down during testing.

K204DR · 05-06-2021, 03:35 PM

well I think I got it. one return line leaking slightly, and one line nut. seems to be good now. Thanks.

05-05-2021, 06:18 PM	#1
K204DR Name: K204DR Title: I'm the Driver Status: Not Here Join Date: Jun 2008 Location: TN Member`s Gallery Posts: 971	leaking injectors my injectors are leaking on two of them. coming up from the hold down nut. I need to take them out and loosen and retorque the nozzle end I guess. any other ideas on getting them to not weep? just put them in a few weeks ago and was smelling diesel, but took a few weeks to start showing up. __________________ 88 Chevy crewcab 6bt nv4500 valair clutch

05-05-2021, 09:42 PM	#2
Smokem Name: Smokem Title: Turbler Status: Not Here Join Date: May 2006 Location: Iowa Member`s Gallery Posts: 5,565	It's almost always the return gasket leaking and fuel running down onto the hold down nut. __________________ Infinite Performance

05-06-2021, 07:52 AM	#3
K204DR Name: K204DR Title: I'm the Driver Status: Not Here Join Date: Jun 2008 Location: TN Member`s Gallery Posts: 971	i'll blow some air on it and check it out again. the return seals are new, maybe I have a loose one. __________________ 88 Chevy crewcab 6bt nv4500 valair clutch

05-06-2021, 10:52 AM	#4
bigstacks95 Name: bigstacks95 Title: Diesel Doc Status: Not Here Join Date: Jul 2008 Location: Falls Village, CT Member`s Gallery Posts: 2,030	Lately I've gotten a few sets of injectors from a really well known company with the nozzle retaining nuts loose. I would check those, throw a new washer on the nozzle and a new U washer on the return and you should be good __________________ --Dave-- 58 Dodge Power Wagon 3.0 Limited Pro Stock diesel pulling truck 2020 Ram 3500 HO/Aisin Laramie/night tow rig

05-06-2021, 01:27 PM	#5
Smokem Name: Smokem Title: Turbler Status: Not Here Join Date: May 2006 Location: Iowa Member`s Gallery Posts: 5,565	If the nozzle retaining nut was that loose it would have shown on a leak down during testing. __________________ Infinite Performance

05-06-2021, 03:35 PM	#6
K204DR Name: K204DR Title: I'm the Driver Status: Not Here Join Date: Jun 2008 Location: TN Member`s Gallery Posts: 971	well I think I got it. one return line leaking slightly, and one line nut. seems to be good now. Thanks. __________________ 88 Chevy crewcab 6bt nv4500 valair clutch