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AIRSEP installed on DDC 4-71 Natural Walker makes a kit to upgrade the older DDC 4-71 Naturally Aspirated engines. Easy to install but there a few engine differences that you need to share with them to see if you can just remove he "Oil Bath" setup, or if you need an adapter if removing the...

AIRSEPs on Detroit Diesel Naturally Aspirated Engines

They are also offering a discount, $ 100 off the AIRSEP kit for Ford Lehman non-turbocharges engines. http://walker-airsep-superstore.myshopify.com/collections/ford-lehman-airsep-products/products/ford-lehman-marine-engines-non-turbocharged-kit-kwfln-1

Here's some info on the AIRSEP kit for Ford Lehmans. https://www.powerandmotoryacht.com/boats/cleaner-and-greener Kit Part# KWFLN-1 Includes adapter plenum.

Pics of AIRSEP installations, Air Filters, and Silencers on Yanmar Diesel engines

Cat 3208 435 hp with Air Seps AB, Understood. Certainly you can try. Just be aware condition of air filter will directly influence venturi performance/magnitude. Let me know how it works out.

Cat 3208 435 hp with Air Seps AB, Sounds good. I would suggest skipping the adapter fabrication, and get the crankcase pressure at the dipstick tube using a short piece of tubing to connect the manometer. That's were all dealer and mechanics troubleshoot from...system vacuum will be vacuum...

Cat 3208 435 hp with Air Seps AB, Thanks for the question. First you need to verify if you are measuring crankcase pressure in the correct units. You should be using a manometer showing "inches of water"....if PSI, that is not a good diagnostic scale, it may signal a bigger problem. Once that...

AIRSEP on typical 4 cycle engine Thanks Sunchaser, that is a good point, but happy to reply regarding 4 cycle engines. As in any outdoor sport or recreation, there are different levels of equipment owners and their expectations. While correct in saying that the AIRSEPS solved a multitude of...

Pleased to offer any support or answer any questions regarding air filtration or any CCV systems on marine diesels.

If there are no specific mechanical issues, and if the blowby seems a bit excessive, Walker makes a complete AIRSEP retrofit kit. It mirrors the system installed at the CAT factory in the later years of production, and are relatively easy to install. You just need to be aware of clearance over...

Ford Lehman Naturally Aspirated *AIRSEP Install- I ran across this archived article on installing an AIRSEP on a Naturally Aspirated Ford Lehman diesel, thought it may be of interest. * Here is link to full Power & Motoryacht Magazine...

Walker has been selling AIRSEP kit for NA engines since the 1980's, while theoretcially possible, I have not heard of such an instance. Many NA engines are set up from the factory to ingest raw blowby...which would have a higher concentration of oil and fuel vapor. Which theoretically would be...

Attached is a picture of AIRSEP installed on 6LY2.

Sounds good. A call or visit to a local CAT dealer may also help if located in their database.

Sounds like a good mechanic. Yes paper filters in the marine environment tend to break down, or get very restrictive due to moisture and or oil vapor*saturating the filter. Walker already has drop in filters for the (3208) 375 and 435 turbo engines. If engine clearance space between top of...

New Member - Happy to help with any questions regarding Walker AIRSEP systems, or air filtration for diesel engines.