There are 2 versions of this spring cap available in the market.
The top one is correct.
The valve in the lower black spring cap is too deep, with the result that the force exerted by the valve spring is slightly less.
There are 2 versions of this spring cap available in the market.
The top one is correct.
The valve in the lower black spring cap is too deep, with the result that the force exerted by the valve spring is slightly less.