| Author | Message | ||
| 4drifter Unregistered guest Posted From: 4.255.214.252 Rating: |
would like help in finding where diesel could be getting in the oil. the engine is a 671 dd.runs good no smoke, | ||
| Jim Stewart (H3jim)
Registered Member Username: H3jim Post Number: 256 Registered: 10-2004 Posted From: 68.6.177.90 Rating: |
Leaking injectors. | ||
| James Stacy (Jim_stacy)
Registered Member Username: Jim_stacy Post Number: 12 Registered: 1-2006 Posted From: 69.208.85.134 Rating: |
Very often a cracked nut on the fuel tubing to the injector. | ||
| Steve N. (N4rsn)
Registered Member Username: N4rsn Post Number: 91 Registered: 2-2005 Posted From: 64.149.213.167 Rating: N/A |
Take some of the engine oil, from the dipstick, or in the head, that is not run down, and put a drop on the top of each injector crossover line nut. (Make sure it is black engine oil). Now start the engine, (at an idle), and with the valve cover off, and watch each drop of oil, on each nut. Soon you will start to see the black oil, start to turn clear. That is the one that is leeking. Just a thought Steve | ||
| Tim Strommen (Tim_strommen)
Registered Member Username: Tim_strommen Post Number: 230 Registered: 11-2004 Posted From: 64.186.173.26 Rating: N/A |
Might be the copper fuel supply pipes to the injectors themselves... After a long life these become brittle and crack. Whether they are cracked or not I'd recommend replacing them any way if you pull your valve covers. They are really cheap (about $60 for that whole set on a DD 6V92). Cheap insurance, compared to a full in-frame. Cheers! -Tim | ||
| Buswarrior (Buswarrior)
Registered Member Username: Buswarrior Post Number: 850 Registered: 12-2000 Posted From: 65.92.190.167 Rating: N/A |
Hello 4drifter. I agree with Tim's thoughts of replacement for preventive maintenance, but AFTER you have found the source of the diesel. If you start messing around before you find the leak, you might find yourself opening it up again. Another place I saw a mechanic checking on a V6 in a GM was watching the downhill parts of the injectors that are connected to the rack. Shortly after shut down, the diesel would ever so gently start to ease down the arm. You could see it as a clearer trace in the darker oil. And it was more than one that was oozing... Good flashlight and some patience. And if you can't find it, don't mess up the evidence for the DD mechanic dude by taking things apart! Let us know what happens! happy coaching! buswarrior | ||
| 4drifter Unregistered guest Posted From: 4.255.210.192 Rating: N/A |
thanks for the infromation, the problem seems to be fixed,leaking fuel stands. |
