ACDelco PF1127 Relief Valve Change

Messages
136
Location
East Coast, USA
Has anyone checked out the relief valve on this filter and know if this new diaphragm design is any good ? The response I got from ACDelco was:" it meets all specifications" The design was changed from a poppet valve design to what looks like a disc or diaphragm design. It now has a circular hole pattern, which nearly flush with the far end of the center tube. I believe this is a Champion labs filter, so there probably other filters out there with this design.
 
Messages
24,412
Location
Central Florida
Yes its made by ChampLabs and now uses a clicker BPV. About 6 years ago the PF-1127 was constructed similar to the M-104 Mobil 1 oil filter (coil spring BPV).
 
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