Air in the diesel fuel injection system causing a leak?

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

gswest

gswest

10 Year 15 Year
Joined
Jul 30, 2006
Threads
41
Messages
1,028
Location
Pierce County, Washington
I just had to replace a seal in one of my twin fuel filters and afterwords I'm seeing fuel leak out one of the injectors. I'm wondering if me not bleeding the first injector is causing the leak. Anyone have this problem before. I know air in the system is bad, but I bled the system at the fuel filters and it started up no problem. But now it's leaking at the injector. Any help out there will be appreciated.
 
You just need to replace the injector seals. It may have been leaking before because what you did or didn't do would not cause it to leak. I never bleed injectors unless I have to.
 
When I rebuilt my 12ht I fitted brand new injector washers and had three blowing bubbles. I took them all out heated them cherry red refitted and no leaks since. Them problem with them is there punched out causing them to harden.
 
I took the injector that was leaking to a injection shop. They said it had some junk in it. They cleaned it up, tested it and it works fine now with no leaks. I still need to bleed the system better. It doesn't start as easy as it did before the blown seal on the fuel filter. Bleeding the system isn't hard, I just didn't do by the book the last time and there's still some air in there causing it to take a little more time to start.
 
Have you got the twin cartridge filters on the 2H?..

If you're having difficult starts.. a proper bleed is not going to change anything, once the 2H has been running nicely for a couple of minutes then it's fully bled. Additional bleeding will not assist in starts.

I would:
  • Verify that you're not losing prime overnight
  • Verify your Glow system is in good working order and hasn't been disturbed with all of your recent issues

To verify that you're not losing prime overnight you can crack the bleed nipple on the filters and pump the priming pump, you should have good solid spurts of diesel immediately.
 
You must log in or register to reply here.

Share this page

Back
Top Bottom