Failed rebuild?

[Rawze]

(Yesterday )Josiah Harder Wrote:  .... Now does anyone know the values for crank case pressure measured in Inches of H2O that Cummins would consider to be "in spec" under load and regen for a new engine? I would also like to know whether my high crank case pressure readings could really have been caused by my non serviceable crank case filter needing replacing? This shop is telling me that they opened a case with Cummins and that everything is "within spec"
...

the 'In-Spec' rating for blo-by is RIDICULOUS HIGH from the red engine maker. - I would/can only assume its so high for the reasons of denying as many warranty claims as they have had issues with in the past with carbon packing problems, etc.

Its some ridiculous high allowance (link with some references below). --- and what they say is acceptable is WAAY TOO MUCH and has always been problematic in my opinion and it always has been!.

... and if you think its your crank case filter... REPLACE IT or DRILL IT OUT COMPLETELY hollow it all the way to the gasket only,.. and check the down-pipe to ensure it is not clogged with a dirt-dobber nest or some other ridiculous thing. That filter has always been the #1 cause of overhead cam failures and turbo slobber/bleeding issues on the ISX.

but at this point, its most likely those garbage parts more than anything else,.. as htis is well known by those who have been in those shoes and learned the hard way already.

Some search results for blo-by related posts that are worth looking at...

https://rawze.com/forums/showthread.php?...11#pid4511
...and...
https://rawze.com/forums/showthread.php?...2#pid22392
...and...

And here is a redneck 'quick test' that someone can do, that also eliminates the crank case filter from the equation, to at least see if they need more accurate/ proper manometer tests done...

https://www.youtube.com/watch?v=-Og4jCM6Rfg