pics of rear rotor and rear housing
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, just took part mine, while it had some compression ( 60 psi ) and well my rotor was salvageble. but housing needs replacing.
one apex was stuck but intact, the other had half of it missing and a chunk out of the apex seal groove. the grooves in the rotor housing are almost 5mm deep in some spots...
Originally Posted by Karack
one apex was stuck but intact, the other had half of it missing and a chunk out of the apex seal groove. the grooves in the rotor housing are almost 5mm deep in some spots...
damn....
Joined: Feb 2001
Posts: 29,798
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From: London, Ontario, Canada
Nice....Seen worse though...Maybe Snrub will see this and post the pic of his front rotor housing. Lost an apex seal on the front rotor, and continued to drive the car for several months. There were grooves almost 5MM deep. 
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Joined: Feb 2001
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From: n
Originally Posted by RETed
Whoa... what was the presumed cause of such carnage?
Joined: Oct 2003
Posts: 11,576
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From: Morristown, TN (east of Knoxville)
Driving after the fact has no bearing on the actual damage. The damage is done the instant the seal breaks and flies apart...3 revolutions is all it takes to destroy all the apex seals, and within a few seconds the engine has turned hundreds of revolutions and spit out all remnants of seal into the exhaust. From that point on, whatever is left of the rotor is just freewheeling, and most any remnants of seal still in the slot are forcibly locked in place because the rotor was distorted. The damage you see when you take apart a blown apex motor is the damage that happened in a split second. Doesnt matter if you shut it down right then, tow it home, and open it up, or drive it another year, the damage was already done.
Oh, and I have seen much worse than that.
I just took apart an auto FD with a 37k mile reman. All stock. The people test drove it up north and bought it, trailered it back home, unloaded it, and it blew the seals before they could get to the gas station to fill the tank up. It destroyed the rear rotor and rotorhousing. What's worse, through an improbable stroke of bad luck that I have personally observed a handful of times out of hundreds of teardowns, one of the pieces of dead seal exiting the rear rotor exhaust port (quite quickly) hit the inside of the turbo manifold in just the right way to find its way INTO the front rotor exhaust port and do damage inside that housing too. I know this because all the seals on that rotor were in perfect condition with not so much as a chip or dent. There were a few small scratches on that rotor, which was reuseable, but that housing was scratched in several places and is not reuseable.
Oh, and I have seen much worse than that.
I just took apart an auto FD with a 37k mile reman. All stock. The people test drove it up north and bought it, trailered it back home, unloaded it, and it blew the seals before they could get to the gas station to fill the tank up. It destroyed the rear rotor and rotorhousing. What's worse, through an improbable stroke of bad luck that I have personally observed a handful of times out of hundreds of teardowns, one of the pieces of dead seal exiting the rear rotor exhaust port (quite quickly) hit the inside of the turbo manifold in just the right way to find its way INTO the front rotor exhaust port and do damage inside that housing too. I know this because all the seals on that rotor were in perfect condition with not so much as a chip or dent. There were a few small scratches on that rotor, which was reuseable, but that housing was scratched in several places and is not reuseable.