Hydro-idi
Full Access Member
Kink the cDr hose it pressurizes the crankcase more and gives the pistons back pressure. If it's piston slop it will quite down because they won't be rattling on the way down. Ask me how I know that...it's hard to diagnose sounds from a video but my firsther idi sounded similar and would crank right up and ran like a champion but it had noise I couldn't figure out....until I tore the heads off and saw that there was .01 wear in each cylinder. Any blow by? Compression check?
Don’t do this unless you want every seal and gasket to start leaking. This is not a good idea and don’t know why someone would even recommend doing this. These engines have a free flowing CDR for a reason, and kinking the line does nothing good for your engine, nor does it solve any problems .