Timing Cover Seal Failure
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Timing Cover Seal Failure So I was making a pull on nitrous, and at the top of 4th (around 140) and the car filled up with smoke, and was leaving quite a trail of smoke as well. The crank seal literally popped out, was loose, just sitting against the back of the crank pulley.
I have an entirely stock PCV system, stock bottom end, heads/cam car with nitrous. The car has never used oil and barely has ever accumulated much oil in the intake manifold/throttle body.
Tearing it apart, just ordered a MM PCV style catch can and new water pump & timing cover gaskets plus a new crank seal. The seal was only 2 years old. I just want to know what other precautions I should take after I get this all back together. When the smoke show happened, I expected something much worse than a seal failure, but I definitely do not want this happening again.
I have an entirely stock PCV system, stock bottom end, heads/cam car with nitrous. The car has never used oil and barely has ever accumulated much oil in the intake manifold/throttle body.
Tearing it apart, just ordered a MM PCV style catch can and new water pump & timing cover gaskets plus a new crank seal. The seal was only 2 years old. I just want to know what other precautions I should take after I get this all back together. When the smoke show happened, I expected something much worse than a seal failure, but I definitely do not want this happening again.
Last edited by ezzlez28; Aug 18, 2015 at 12:19 PM.
I had this happen to my new forged 347ci on the dyno with a Procharger. It let loose at 5,000 rpm's and shot 5qts of oil everywhere 
This was also on a bone stock PCV system. I now run a vented catch can with all the rocker cover ports hooked up.
My car having positive air pressure with the blower and bigger ring gaps I just wasn't able to e-vac the crank case fast enough. In your case I would do a leak down test and make sure you didn't smoke a piston. You could be pushing all the compression in one cylinder into the crank case.
This was also on a bone stock PCV system. I now run a vented catch can with all the rocker cover ports hooked up. My car having positive air pressure with the blower and bigger ring gaps I just wasn't able to e-vac the crank case fast enough. In your case I would do a leak down test and make sure you didn't smoke a piston. You could be pushing all the compression in one cylinder into the crank case.
Last edited by conan; Aug 18, 2015 at 04:25 PM.
Thread Starter
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From: Cleveland, Ohio
Car still runs perfect, Im just not taking it out of the garage until the catch can is on. Mine as well run the tests while I wait for it to arrive. Just didn't expect this.
