Causes of Rotary engine failure

[12arotary]

I've never had a "locked up" 12a to where it wouldn't rotate, in my experience if an apex in one breaks for any reason its usually small enough to just shatter and keep going-
and the high millage roll out exists on the 12a too, I had an 83 with 241k on it, all of a sudden I lost about 1/3 the power- when I removed the exhaust there was a bent apex in the corner of the stock mani- upon breakdown the other two seals were fine just that one came strait out


Add Carbon flake to any 13b or 12a NA pre-85 I've lost many engines just simply with too low compression to keep running do to large splotches where the housing just flaked off ESPECIALLY 12a's with over 150,000 miles

and to the s5- i've lost a coolant seal simply from old age, never over heated never abused just went

you might also add hot spots in the s4 na category- i've seen poor coolant flow that warped the housing its self around the spark plug area causing poor compression or total apex break