So I took apart a certain 5.7 today that developed a nasty little rod knock on #6 cylinder. Pulled the heads to find the stock .028" head gasket and something I was concerned of had actually happened.
Yep .....thats right....the piston kissed the head......this is why we don't run .028" quench on a motor. Rod bearing let the piston come up just enough.
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Wow...And for a novice like me...this is caused by super high compression on stock head gaskets?
'14 Mustang GT 5.0...Race Red...6spd Manual...Stock...
Hell if its worth a football... kiss away. lol
Stock catback, and stock drivetrain
Typing from a tablet, excuse typos.
Not really sure what I should be looking at though.
Blow it up and trailer it home!!
Ouch .. Will those nice new Eagles be ok?
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Ya, noticed that Ben but still don't know enough to be able to tell what happened.
Eric, sorry this happened. Interesting that only cyl #6 was affected. How could the rod bearing allow the piston to impact the head? Was it something that was RPM related? Just curious.
Mod List: http://www.lxforums.com/board/showth...35#post2353135
Isn't this nick's motor...
So how did just one piston kiss the head? What was the ptv clearance ? I thought we wanted .050 to be safe so this wouldn't happen etc
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Sorry to see. Did it actually break off the electrodes?
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