N14 celect plus exhaust leak

Yes there is gaskets for joints. New manifold is not needed unless flanges eroded out. Partsperson sounds like a wiener. Not sure of part number as not at work yet.

 

Have registered with Cummins quickserve. A lot of information on here.
Cummins QuickServe Online

I don't think there are any gaskets. The pipes just fit together.

Why do you ask about gaskets?
If that black on your exhaust is oil, the exhaust is not the problem I would be concerned with.

Good luck

 

That’s oil, and at least on the ISX there are metal gaskets in the manifold. I set the gaskets with a large metric socket. It was not difficult, but you have bigger issues from the looks of things. Get your engine serial number (EIN), and go to Cummins Quickserve dot com. Register your motor and go to service section, click on engine repair manual for your motor... Good luck!

 

Oh geez. Your fine. That's probley just a little fuel slobber from idling to long.

It mixes with the soot and comes out the slip joint a little and looks like oil.

Your fine. On cats E models and c15 they actually have a packing seal around that slip joint to catch the excess fuel slobber. Its compleatly normal.

 

That manifold is a 3 piece design that just slips together. No seals. It's a machine fit. Over time with constant expansion and contraction from heat cycles those joints do get excessive clearance and will leak soot.

Fuel slobber will seep through those joints , even on new manifolds. So what you got there is compleatly normal and no cause for alarm.

My advise is to limit your idle time warning up in the morning. These electronic engines only require a short minute to build air then just drive it easy till up to temp. Gone are the days of nct400 Cummins warming up for 1 hour while you go for coffee.

What you got there is one of the best engines ever put into a class 8 truck. Itll go for long long time if taken care of.

 

Well there is your answer.

If that is the case then bump it up to 1100 rpm. Your engine will thank you.