How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Wayne Your Own Question
Wayne
Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 8902
Experience:  worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
6825259
Type Your Medium and Heavy Trucks Question Here...
Wayne is online now
A new question is answered every 9 seconds

12.7 Detroit diesel just inframed with reman head. Six reliabilt

Customer Question

12.7 Detroit diesel just inframed with reman head. Six reliabilt injectors. New turbo. fuel transfer pump, (old one leaking), new injector harness.heavy white smoke when under heavy fuel demand, will not pull runs very rough under load
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Wayne replied 1 year ago.
Hi i'm Wayne
I will help you with this
This is a very common problem after injectors replaced
what happens is a O-Ring gs rolled when installing,
and you don't know it
then the engine will start a miss run rough, and pour out white smoke,
reason being the injector is dribbling instead of a mist
I suggest you pull injectors and check o-rings
If this helped you, Please rate my answer If
If Not, Please USE REPLY BUTTON FOR MORE INFO
Expert:  Wayne replied 1 year ago.
Hi I'm Just following up with you
did my answer help you
Let me know
Wayne
Customer: replied 1 year ago.
Checked injector deals on misfiring cyl. All good. May have PAC brake problem
Will inform u when I have definitive answer.
Expert:  Wayne replied 1 year ago.
OK, Let me know
Customer: replied 1 year ago.
Will do
Expert:  Wayne replied 1 year ago.
OK,
I have to respond when every you do, locks the question to me
Customer: replied 1 year ago.
Found ex valve leaking on #6 cyl. Removing head to determine why the failure
Expert:  Wayne replied 1 year ago.
Hi Thank you for that
keep me posted
Wayne
Customer: replied 1 year ago.
Found apparent over fuel situation on cylinder 1. One ex. Valve on 6 I would say set too tight bent valve head just enough to not seat but destroyed nothing.
Expert:  Wayne replied 1 year ago.
HI
Glad no damage,
good luck on your repair

Related Medium and Heavy Trucks Questions