(1) I pulled the powerhead after bending and grinding a bunch of 1/2 inch open end and box wrenches.It took me all afternoon to remove those two nuts on the studs......2) I don't know how I will get them back on the studs......(3) My hand is too big...... (4) What should I use with the gaskets, should i use a gasket sealer with the oem gaskets?
1 - I'm aware of the nuts you speak of. I took a old box wrench, stuck it in a vice, put a propane torch to it, then bent it into the most distorted special wrench anyone ever managed to look at... still have it, will never use it again, but can't seem to part with it.
2 - First, clean the threads of the stud and the nut thoroughly. Then have a scribe or some sort of pointed tool pressed on top of that stud, let the nut slide down the scribe or whatever tool you're using. Now, still keeping that point jammed on top of the stud, use a long skinny screwdriver to spin the nut on.
3 - The big hand curse... yeah, I know all about that. My late wife's car had the climate control go out.... broken vacuum line and of course it was jammed between the raised aluminum upper intake manifold and the firewall. Just enough room for one hand and a pair of needle nose pliers in the other hand. Managed to splice the vacuum line with a piece of boating speedometer tubing. Had one hellava looking left hand for a couple weeks!
4 - Auto part stores carry exactly that "Gasket Sealer".... comes in a can that has a brush attached to its screw off cap. It the only thing one wants to use on gaskets. NOTE:... If the gasket is coated with something shinny, that would be a sealer that seals with heat. Use nothing on those type gaskets. They normally have something written on them "Use No Sealer"... something! Avoid the gasket maker stuff, silicone, permatex, unless it's absolutely called for.
The exception is head gaskets... if the shinny self sealer is there, use nothing. If a plain head gasket, just coat it lightly with oil.
Good luck.