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The oil pressure relief valve consists of an aluminum plunger with a heavy spring behind it. Access is through the 15/16" domed cap nut beside the dizzy. Once this nut is removed the spring will be visible. The plunger is beneath the spring and will ...

Oil pressure relief valve spring for Cooper S 1961 to 1971.

The oil pressure relief valve consists of an aluminum plunger with a heavy spring behind it. Access is through the 15/16" domed cap nut beside the dizzy. Once this nut is removed the spring will be visible. The plunger is beneath the spring and will ...

Oil pressure relief valve ball and spring kit. Cooper S upto 1971. Can be retro fitted to all minis to boost oil pressure.

The oil pressure relief valve cap on the front of A series.

The seating in the block that the 12H865 oil pressure release valve sits in, when fitting the end with the slight taper goes into the block first.

Tapped M8 to make removal from the block easy. We recommend that you leave the ol...

The oil pressure relief valve consists of an aluminum plunger with a heavy spring behind it. Access is through the 15/16" domed cap nut beside the dizzy. Once this nut is removed the spring will be visible. The plunger is beneath the spring and will ...

The oil pressure relief valve consists of an aluminum plunger with a heavy spring behind it. Access is through the 15/16" domed cap nut beside the dizzy. Once this nut is removed the spring will be visible. The plunger is beneath the spring and will ...

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