Packard Forum Index » Pre-War (1899-1942)

Removing head to 41 six cylinder.. after removing all the nuts and using putty knife to separate gasket.. the heads lifts up easily but it stuck on the rear middle and drivers side head studs. It’s not binding it’s definitely rusted stud to head .. I can see see rust built up around the stud.., I have tried kroll, pb blaster and acetone.. nothing.. I’ve used my plumbers torch and heated head around studs but am worried I could damage engine so I only heat up the head for a minute or two… any ideas how to free it? Tks

Put a nut back on the stud and run it down near but not touching the head. Then take a good stout hammer and knock it North South East West many times to break up the rust crystals. Ghandi was wrong. Sometimes violence is the answer.

Ok ..I’ll try that…I have been doing that but with moderate taps of hammer.. maybe I need more force tks

Ok …spent some time really aggressive with nut spun on and it’s now moving slightly free.. I can see head moving around the two studs slightly….put some more krill in holes and will come back and try some more.. tks for advice

Food for thought.

Had a L-134 in a Willys MB that we got the head off of by putting hemp rope down thru the plug holes on all four cylinders and then bumping it with the starter.
Pushed it up a good 1"-1 1/2".

Just a thought.

Degrease the area and build a little pond with clay around the stud. Pour in evapo rust and wait...

For the above comment it's a good idea but using the starter is an easy way to damage something if it doesn't want to go. E.g. flywheel teeth.

Ok I’ll try that as well thanks!

Got it off! Thanks for the assistance!!

Good job! Now comes the real fun.