Budget 12A SP build

[NoDOHC]

Originally Posted by t_g_farrell

Your referring to the 2 oil control rings on each side of the rotors right?
I'll be getting a full soft seal kit so I expect that will include the o-rings for the
oil control seals. The A engine oil control seals look brand new, no shiny area
at all. The B ones definitely look older and worn and are shiny about half way
across, probably out of spec as well.

Turns out I may be able to use the lighter weight rotors from engine A which
already have brand new bearings in them. They look almost new. In fact
everything from engine A is looking better than the B engine. The B engine side
plates have noticable grooves in them from the corner seals. I may use the
A engine front rotor housing instead of the B engine rear rotor housing which
has the chunk chipped out of the exhaust port top opening.

I'm thinking of trying out the Goopy housing resurface service. Its certainly
priced right at $125.00 for a pair.

At $125 each, I have a few that I might send in myself. It makes even more sense to get 12A housings done as they are getting harder to find.

If there is no shiny place on your oil control rings, they are likely new. It sounds like engine A really was a recent rebuild when it ate the bolt.

Eating bolts is not that uncommon, I have a 90 4-port that ate a bolt (all seals were still ok, rotor and housing = junk).