Re: 56 main bearing bolts

Posted by BH On 2014/1/3 18:55:07

The bolts with the head recess and six slots are self-lockers - no lock washer required. If you check the SCs, you'll find that self-locking main bearing cap screws were implemented part way into the 22nd Series run. No need for lock plates or lockwashers with those.

The 'LE' on the other set of bolts is probably just the maker's mark - perhaps Lake Erie. They're plain bolts ( probably somebody's idea of a substitute) and require some sort of lock (choose yer posion).

Mind you, I'm no master motor rebuildier, but just commenting from my personal observations over years past.