RX7SpiritR

iTrader: (1)

Just took some pictures this morning of my front rotor housing to show you guys the damage there was.

Here you can see the long gash made from the loose/broken apex seal in the exhaust chamber:


Here you can see a seperate single small gash at the compression / spark chamber:


Here is the damned culprit :

zmarko

Wow. That sucks. Amazing that that much damage can come from such a small piece. Good luck with it.

c00lduke

What kind of seal is that, I've had a part that small break off and nothing happened damage wise, i'm suprised you even found it.

RotaryResurrection

iTrader: (8)

Very common for apex seal failure to result in scarred housing and (usually) rotor as well. Usually worse at the exhaust port, and lighter but still pronounced at the T plug. A general rule of rebuilds is that with a blown apex motor you'll need a replacment rotor and rotorhousing.

The damage gets MUCH worse than that. From my website:

pugg57

damn, that's ugly

dubulup

that's the worst I've seen...

congrats!

Montego

iTrader: (1)

Is your car back at R&R?

monster-RX7

I dod n't know the housing could be damaged to such an extent before the engine gives. I thought once a single groove is made in the housing, then compression is lost immediately

dubulup

most have been one hell of a show.

RX7SpiritR

iTrader: (1)

Yeah it is. And that small piece was actually just chilling slightly sticking out it never actually floted around in the housing otherwise it would have exited through the exhaust port and right into my turbos. But I don't know about the rear housing yet, hell it could be worse and I don't know about turbo damage or anything yet. I think the turbos are ok though.....I hope.

RX7SpiritR

iTrader: (1)

Only to an extent. You can lose some compression but its not gonna all of a sudden drop to zero with one groove. Plus it depends on where the scrath is. If its near the exhaust port only and isnt too deep or big then its ok since no compression happens there. It really matters when its in compression area or spark area. But my car has sseveral problems since it wont even start anymore, I'm thinking that my rear rotor is just so badly messed up that there's absolutely no compression......