So I was pulling a heavy load, about 21k and I kept having to back out of the throttle and down shift to keep temps down. Still had plenty of HP but couldnt use it. I noticed it was smokyier than usual, boost is still 19.50 and water temp would climb a little. I looked in the articles and found Michaels air charge rig. It says Cummins Service Products 3824556, searched and no luck. Who is recommended to order from? Thanks

I made mine from just plumbing parts at the hardware store. Drilled a hole and installed a air chuck.

You think I can use the breather tube to test with? If I take that to the supply store surely I can match that up with some pvc.

 

I'm think turbo cap for pressurizing the intake and air system for testing. Not a blowby test because blowby test you can pass with a cracked piston but would fail if a compression test was done.

Breather tube? Thatd be crankcase pressure Id think.

 

Quick google ‘cummins boost leak tester’ I made mine out of 4.5” hole saw plastic part. Put a fitting where the drill bit went. Regulated shop air to it and spray hoses, intercooler, etc with soapy water.

 

No codes? Air filter clean? If getting at least 19# from MAP?, may be fueling related. 

I got one on order, found it on amazon. Figured I'm gonna need it anyway .