Quote Originally Posted by jff45 View Post
Could also be a sticky piston in the valve body if the servicing hasn't been regular.
I think about it to. The other day, in the presence of time I'm going to change valve body. If the problem is not in it, I'll change gearbox. How will I do this, I'll write what was the matter. The benefit is a spare gearbox in stock and 1 more for spare parts. Thank you))