Checkout this very large forum dedicated to RX-7s:
http://forums.mazdaworld.org/index.php?showforum=39
Your problem IS fairly well-known.
--
First of One
Formula SAE Racing:
http://fsae.utoronto.ca/
"JG Tate" <(E-Mail Removed)> wrote in message
news:ZKqdnYVD_ehmlCeiRVn-(E-Mail Removed)...
> We are the original owners of an 82 RX-7 that we intend on keeping. The
> original engine had a rotor seal problem that was resolved by replacing
the
> engine with one from a wrecked RX-7. Everything was fine for about 3
years.
> Not sure what the parts are officially called, but if you look at how the
> engine is assembled, there is a slow leak between the front "cap" and the
> main engine rotor housing.
>
> My understanding is that this is not a gasketed assembly. I can clean off
> the oil and in a day there is oil seeping out of the top front drivers
side
> of the engine assembly between the front cap and main housing. Any
thoughts
> on how to stop this leak? Could it simply be loose bolts or is this
> something more serious.
>
> Thanks, I can email photos for better understanding, let me know.
>
> Jim Tate
> Mt. Joy, Pa
>
>