Originally Posted by
DmaxMaverick
If you don't align the polarity of both magnets, they are close enough to cancel themselves and catch nothing. I'm not sure if that's even possible with a cylindrical vs. flat-plane magnets in close proximity. The Filtermag polarizes the filter canister, which may have some affect on the flat magnet and its effectiveness.
Interesting question on polarity of the two magnets. One test would be to hold the OEM Allison magnet and Filter Mag in approximately the same orientation they would be on the filter and see if they attract each other. If not flip the OEM magnet and try again. The North/South poles of the OEM magnet should be the top and bottom of the disc and the poles of the Filter Mag bar magnets would be at the top and bottom of assembly. If that’s the case and assuming the poles of the two magnets were aligned, then the combined magnetic fields would be channeled through the filter case. The next time I change my Allison Filter I’ll test it out with a Filter Mag and report back.
Bill
03 2500HD D/A CC/SB/4WD,OilGuard, MegaFilter,LiftPump/PreFilter, Bilsteins,RetraxRollTop,J&J Boards,Coolant Filter,AlliDeepPan,FastIdle,AllHeadLightsOn,
98 K3500 6.5,SOLD