Blowby/high crankcase pressure

[mxmom777]

(03-05-2023 )SquareOne Wrote:  You may have mentioned in another post, but what kind of hrs/mileage is on this engine? And yes, Tree is correct on the crankcase filter. Check it...many people have no clue it can and should be replaced (preferably w/ a maintenance free one).

There is a little over 300,000km (done in late 2018 at Kenworth Amos Quebec) since engine swap and rebuild. The crankcase filter was recently replaced.