rb engine and gearbox weight is pretty heavy must be if i remember what i was told 250kgs + full dressed. whats an rx about 130 to 150kgs. theres 2 shafts to the rear. the rear diff i assume is heavier also. i dont know too much about it because it hasnt broke down. ill get some measurements.
Also its not unusual for turboed rotaries engines to go at ANY mileage. Id consider 35k on one engine fantastic as ive never had more than 5k out of mine. Consoltaion is you can do a CHEAP REBUILD YOURSELF WHICH IS VERY SATISFYING AND WILL COST YOU ABOUT 600 TO 1000 EUROS. SORRY ABOUT THE CAPS
sounds like a chipped tip. still giving compression but ticking against the housing as it spins. when it fully lets go it will be like a tractor. get a real compression test. the 1st housing was weaker in the vids