Ariel Owners Motorcycle Club

Please could anyone advise whether the hexagon headed oil pressure relief valve body on the end of the crankshaft is a right hand thread.
I have placed a socket on the nut and exerted an anticlockwise force whilst sitting on the engaged kick start which does not loosen the nut.
How can I lock the crank shaft sufficiently to undo the valve body nut?
I am still suffering from different oil pressures on different short rides so wish to check the oil pressure relief valve.
Thanks, Eddie Lloyd

Hi Eddie,

It is a right hand thread, but I have never seen one with a hex head, they are usually slotted for a screwdriver.

My (rough) method is to put an adjustable spanner on the drive side splines and use that to lock the crank. If it’s stupid and it works it’s not stupid!

Rob

Is there a visible hole in the end? I am wondering if someone has blocked off your oil pressure relief valve hole completely.

For what it's worth the parts list shows a hexagon head on the pressure
relief valve. I looked because I've never seen one either and there it was.