N14 Cummins dropping valves in 2018, Story

PFTW1995

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On the first run of 2018 my N14 dropped an exhaust valve on cylinder #6 and so started the nightmare that is detailed in this video.
DISCLAIMER, I still have much to learn (as you can see in this video)
In the video I make assertions, guess' and assumptions, take these with a pile of salt. There have been times when I was sure I was right and that turned out not to be the case. The purpose of this video is to share my experience in story form so that others might not make the same mistakes. My Cummins N14 Dropped a valve: • My Cummins N14 Dropped...

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7 авг 2020

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Комментарии : 17

@PoliticalGangster 3 года назад

Your commentary is what make the video golden. Thank you.

@2006pete379 2 года назад

Thanks for posting the video. I have a N14 in a 97’ with only 550k miles. I work on my own stuff, so I appreciate the video.

@PFTW 2 года назад

Doing your own work is the only way to go, I learned that recently also. Thanks for commenting!

@CleanCutLawnsK2 2 года назад

My '99 N14 did the same thing: broke a valve near the top, I heard the tinging and shut it down immediately. Luckily it didn't do any damage to the cylinder/piston. My cam had several lobes that looked like that one, and all the matching cam followers were the same. New cam, bearings, and once I finally got 3 decent heads from Cummins, she's been going strong. I love the N14 design. So easy to work on.

@PFTW 2 года назад

YES! The N14 is robust, and easy to repair! Thanks for the comment.

@ryleebrooke4651 2 года назад

In my experience you must always fine the cause. Never assume it just wore out or bad parts . I would have done all the things you did because doing a total rebuild every time is not economical. I am 66 now and still work on diesels and from the school of hard knocks I have learned to study details. Like you found if you stop look and listen the engine will tell you what is wrong. Enjoyed your video.Thanks for sharing.

@PFTW 2 года назад

Thanks for commenting, Trying to do my best.

@michaeldunagan8268 Год назад

Yeah- -On occurance #3 and the SAME cylinder and intake/exhaust, I think I will have gone backwards from the valve to the springs to the keepers to the push tubes to find the followers and the camshaft.

@DavidMartinez-dl8lg 3 года назад

Do you have a way to contact you? I’ve got some questions regarding my N14

@k.kbenjamin1641 2 года назад

Thanks for this video,any way to contact you? I'm rebuilding my N14 right now and you're knowledge would help out

@michaeldunagan7838 3 года назад

I hope that my N14 does not drop a valve.😕 My N14 has 1,149,000 miles with 43,500 hours. I have not read much about valves dropping on N14s. I have read that N14s eat injectors and sometimes there are cam issues.

@flipbuddies2350 10 месяцев назад

Rocker arm came undone and caused a valve drop huh?

@agngua 3 года назад

How many miles on that camshaft all together ?

@PFTW 3 года назад

I don't know the exact history of this truck and engine, but its pretty safe to say that it was the original cam and likely had 1.5 to 2 million miles.