Took advantage of some sunny weather and removed the rocker covers and rocker arms.
Like everything else so far, the rocker nuts seemed to be on mostly finger tight, so they were a snap to remove:
Here is the right side heads with the rocker arms removed. A couple of the rocker studs came right out with the rocker arms and that's okay because the studs need to be removed next:
The rocker studs serve 3 purposes. They connect to the lower head studs, they hold down the guide plates to distribute the clamping force over a larger area and proved the mounting stud for the rocker arms. Out the studs and guide plates came, easy:
I know that current wisdom is to leave the head studs in the block as they are, however I have several of the upper studs that have badly seized head nuts on them:
I've been following the advice of others and soaking these daily with a good amount of PB Blaster penetrating oil. As this core has been previously at least partially apart, it looks like they pulled the studs when taking it apart and I'm presuming that is because they either thought they should pull them, or just did because that was easier to do than dealing with the frozen head nuts. Some of the nuts came off without any trouble, some not so much.
The studs that have seized nuts seem to be backing out somewhat easily but I haven't taken them out yet so I don't know what shape the internal threads are in. But I know if they are turning at all it is something to be concerned about.
So, long story short.... I have to figure out if I am better concentrating on removing the stubborn head nuts as they sit on the core, or backing the stud out completely (it's already loose anyhow) and following the procedure others have used involving Locktite adhesive if the threads are okay.
As long as I don't have to deal with snapped studs like on the 110hp core, I'll be happy. I've sent an e-mail to the Corvair conversion forum and to William Wynne for some guidance.
I'm not looking for a shortcut, just remembering my late grandfather's words of wisdom "work smarter, not harder".
Next up, removing the harmonic balancer while I wait for answers on the head stud nuts.
Time until takeoff
Husband, father and 911 dispatcher. Long time pilot with a licence that burns a hole in my pocket where my student loan money used to be. First time aircraft builder. Looking to fly my own airplane.