Hello everyone,

I need some help doing valve adjustments on an 84 300D Turbo. I've read dieselgiant pictorial and a lot here in this forum, but nothing is helping.

I have 3 stubborn exhaust valves that I can't loosen to fit a .305mm feeler through it. A .102mm fits, and I can get that stuck and I can also make it loose, but I can't get it loose enough to make a .305mm feeler fit.

I am using the top to adjust the height and the bottom nut to loosen/tighten. I did notice that when I keep the top nut still and loosen the bottom, the valve spring moves. Is it supposed to? or is it supposed to be stationary when loosening/tightening? I've been turning it a lot and the gap stays the same. If it's supposed to stay still, how do you keep if from moving without using a wrench (I don't have one large enough). I've heard of using a screwdriver, but I don't understand how that works.

Thanks in advanced!!