Where is My Filter Bypass?

Standard CH48110 filter is called out in the parts catalog for the -E2D, but my engine has been equipped with a CH48103 (or equivalent) because it has a CH48212 converter stud installed.

It appears neither one of these filters has the built-in bypass as the Champion docs indicate only CH48108 and CH48109 have it.

I have the standard oil filter adapter pictured below...if the filter is blocked, how is unfiltered oil bypassed to provide lubrication? The way I understand it is the pressure will be relieved upstream like normal as the ball will unseat more, and a cooler blockage will be relieved by the vernatherm, but how does oil volume get the important stuff if the filter is blocked? Just trying to understand things work on my rig.

Next time you change the filter & cut it open, check for a rubber flap in the base. Some filter designs have it at the top of the filter, spring loaded.

Standard AC style filter adapter.

Thanks Dan! I figured that was it but couldn't find any info!