M4wd&Fabrications

Projects place => Tech => Topic started by: M4wdFab on April 29, 2017, 11:06:48 PM

Title: cummins flaws
Post by: M4wdFab on April 29, 2017, 11:06:48 PM

a lot of you guys know these things, but it was a good read and all in one summary over the years for the cummins novice

http://www.drivingline.com/articles/5-fatal-flaws-of-the-b-series-cummins/

Title: Re: cummins flaws
Post by: dubt on April 30, 2017, 09:47:10 AM

Thats a good article , Im stealing to post on Fingerlakes.

Title: Re: cummins flaws
Post by: Harrison on April 30, 2017, 10:19:54 AM

Learned after I got mine that the 325hp 5.9 common rail trucks (04.5-07) have the worst of the injector issues coupled with a super tight ring gap to help reduce blowby emissions. Recipe for breaking rings, eating oil, and then losing compression altogether. Exactly what happened to mine. I have 2mic fuel stuff on mine now, and engine builder I got my motor from files rings to open gap back up.