Oil pressure bypass valve

[Beanderb4]

Hi,

I need to reset the oil pressure bypass valve on the 2 L spider. Has anybody got any guidelines as to approximately what a quarter turn or a half turn of the screw would make in terms of adjustments for the pressure. If I can find out what a half turn for full turn difference makes it will just speed up the process for me.

Regards Paul, Dublin

[Stefan2000]

If you would measure the spring rate of the spring and you know the pitch from the tread of the adjuster than it's no rocket science to calculate.
But plugging in a manual gauge sounds more accurate to me.