6nz C15 - weaknesses, concerns etc.

I had it done at Cat in Lavergne, Tn a couple of years ago. I can't recall the exact amount. It's a set flat rate maybe around $200 or $300?? call around to see..

 

I believe the first thing too do is like mentioned earlier is to get a coolant check for additives,and have cat do a oil analisist.If that checks out i would drop the pan and roll in new rod and main bearings for my own piece of mind. While under the engine i would look up in the cylinders and inspect the linners for good crosshatch. Too bad cat doesnt date stamp there rod and main bearings like detroit does. Might sound like alot of work but the crankshaft is the heart of this joker and if anything happens too it then it gets very expensive. what is the engine serial # and ill look at the history of repairs for you and tell you what i think .

 

yeah not too much info , the frt. gearcase looks to have been resealed at about 350k miles and just a few other minor repairs when it was new.

 

just wondering if any one knows the jake settings on a 6nz 73586 engine

 

Hello Diesel Maniac: Great first seven posts! New member with nothing but help for the rest of us. Is it safe to assume you work for Cat?
Look forward to many more posts from you...

 

This is a loaded question with many possible answers.

If its a Jake Brake Compression Brake you have the possiblity to have 4 different settings depending on the model of the Jake Brake installed on the engine and the horsepower rating.

Jake Brake Model # 340C

410 or less hp.......... .037"

435 or more hp........... .033"

375/435 Multi torque...... .033"

Jake Brake Model # 340D

all engines ......... .025"

these measurement have a + or - tolerance of .003"


You could also have a PacBrake brand compression brake, here you have the possiblity of three different settings.

PacBrake Model #'s P39A or P39B.......... .030"

this has a + or - tolerance of .003"

PacBrake Model # P39C............ I don't have the specs on this and you'll need to contact CAT

Now you'll understand why I said it's a loaded question

 

Have you had any dealerships run the VIN or engine serial #?

Just a thought.

I'd put it on a dyno, get some HP and Tq #s, also a blowby test, if it has dirty oil sample it, and if all looks good buy it.

 

Sorry about budding in but Mr. haney I would like to talk to you about my ECM.

thanks