Hello , my name is Joe
I have read your question and will do my best to help.
There are 3 main
factors that can result in excessive blowby in your engine: Internal engine damage , a malfunctioning or defective air compressor , or a malfunctioning or defective turbocharger.
There may have been dirt or dust entering the engine from a small gap in the air filter boot or tubing.
You can visually inspect for any of the following:
- Loose intake clamps between the air filter housing and the turbocharger inlet.
- Worn, loose, or broken air housing latches/clamping hardware.
- Loose or poor fitting connection at the turbocharger inlet.
- Collapsed or buckled intake piping.
- Incorrect filter installed by customer or OEM. Contact Cummins Inc. if there is a question about proper filter installation.
- Poor seal at filter (incorrectly installed, damaged filter or housing, worn latches , etc.
The turbo and the air compressor can also contribute to excessive blowby and oil discharge from the vent tube...Proper diagnosis would require specialized equipment.
A special blowby measurement apparatus is normally used to measure engine blowby with a type of pressure gage called a manometer.
Once a blowby measurement has been taken , then the air compressor and the turbocharger can be isolated - one at a time.
By isolating the air compressor and the turbo , it can be determined if either component is a major contributor to the amount of blowby.
Please let me know if you still have any concerns.