<VV> Oil pressure Regulator Piston/Valve

[Bob Gilbert]

Hi,

I thought I had lost the oil pressure regulator valve during the recent
engine disassembly so I ordered a replacement from Clarks.

As is often the case I found the original at about the time the one from
Clarks arrived!
Anyway, I noticed the replacement from Clarks has a small raised "button",
perhaps an 1/8 inch or so in diameter on the bottom while the original was
flat.

 

Any advice or concerns as to which one I should use?

 

Thanks,

Bob