If the rotary engine blow. what will happen
in my situation the engine idle unstable.and press gauge
show up and down.if the turbo leak air (in the gasket)
this condition will happen?
please give me more suggestion.

 

If it idles at all I don't think the engine is blown. How about driving it, is there a significant power loss? Any smoke?

When mine blew, 4 days ago, I had a significant power loss, lots of smoke, and it won't idle unless I keep it spinning at about 1500 rpm.

 

is there alot of backfires or smoke or loss of power

 

Just get a compression test done. You'll know for sure. So many of the "blown engine" symtoms can becaused by other problems.

 

You can have what I just experienced. A chipped apex seal. I'm running 80-80-80 compression in the rear rotor, and 80-54-54 in the front because of a chipped apex seal. You can tell this if you step on the gas whil the motor is bogged down, and you see the boost guage needle fluttering. Then when you downshift to over 3K the needle flattens out. Not saying that is it, but the motor isn't blown yet, just on it's way My cause was that I got alittle predetonation from the spark plugs not being changed. I'm going to be religious now at 5K miles, and 1.5 K miles on the oil change. LOL....

 

what is compression test? can i DIY?
the result of rear rotor X-X-X and ?-?-? front rotor what's the no. represent?

 

check your MAP sensor