Locked NOt seized 2F (1 Viewer)

[SkinnyD]

I had a similar issue with my 71. Frozen from sitting for over a decade Here is what I had to do to free it.
1- soak each cylinder for several days with your favorite penetration oil
2 - Yank head off and remove any visible bore rust with 1000 grit wet/dry cloth
3- Drop oil pan
4- disconnect all connecting rods/caps.(make sure to mark them for reinstallation in same cylinder and orientation
5- find which cylinders are frozen
6 - trim a 4x4 post to fit nicely in the bore to the piston
7- hit the frozen piston(s) free
8 - remove each piston and inspect piston and bore for issues
9- do a light cylinder hone
10- reassemble

All the above you can do with the engine in place.

I can't remember which pistons were frozen but I do remember I had to use a sledgehammer to free up one of them.

I would recommend replacing rings and all bottom bearings since you have it all apart.

Spot on kckfj4o! Thats welcome news as my facility is somewhat limited.
Thanks!!!

 

[Pin_Head]

Currently, my spidey sense is leaning towards a spun bearing. Bottom up will be my direction. THANKS!

Probably not “spun”. But merely seized from lack of oil. A spun bearing would make a knocking noise, but it would still rotate unless a rod was sticking out of the block. Check the distributor to make sure it is seated all the way. Do the easy things first.