[IndyDiesel]

To echo Tomko, seafoam was a super bad idea. Dexos 2 5w-30 is what engine needs to be used, period.

Soot at 77 is super high, when they do a manual regen it needs to go to near zero not 21.

It sounds like you may have multiple issues to deal with some of them may be self inflicted.

 

[IndyDiesel]

Will see what parts it takes to get Diesel back on the road again, makes me wonder if this is a weak link on higher miles CTD would it make sense to replace this plastic tube/hose if that is what blows out as a precaution maybe when timing belt is replaced? In other words why wait till it fails??? just a thought.

 

[IndyDiesel]

A very good thought.

There's also a guy who makes custom Kevlar-lined silicone hoses for the aircraft industry. He's currently produced some for duramax. I'm wondering if he'd make a replacement for us.

CSOBeech - Gee Bee Beechcraft Product Store

That could be a very good idea, maybe that would hold up longer and just need replaced once and then just inspect it at each oil change? I wonder if one was looking it prior to failure if it is showing signs of failure like a crack or something?? maybe not.