silver350z05rb
11-27-2011, 10:42 PM
Just want to give information on a situtation that happend and hopefully it will help some people out who think they have Rod knock, piston slap,dick slapped ETC. BBBBBAAAAAAAAAAAAAAAA.
Anyways,recently installed a KA into a s14, turned on engine without exhaust at first to make sure it turned over, everything sounded fine, hooked up exhaust, turned over engine, was knocking loud , like normal engine knock, piston slap, was hoping it was just noise from head, but as you get closer you could tell it was coming from the bottom, first thought is.....I got fucked over on this engine.made sure chain wasnt hitting the valve cover so checked chain, inside of valve cover for wear and tear from chain marks.previous owner had already removed top chain guide. checked compression again and everything was good, but it still sounded exactly like the rod or piston was slapping around inside.so after checking all the head stuff, jacked up the car on jack stands and checked underneath, sounded like it was coming from underneath the oil pan,therefore, again knocking, went on over to the passenger side underneath and it sounded like it was coming from the Tranny.The tranny was missing the 2 brackets underneath the tranny that bolt on to the engine(left and right). so i just added bolts to close up the tranny cover/gasket so it wouldnt be open from underneath.so anyways after remembering that I added bolts to close up the gasket, I decided to remove the bolts and bent the cover/gasket away from the tranny and then turned on the car, noise was gone, not sure why, im guessing the gasket was bent out of shape,so when it was tightened back on it would rub against the flywheel causing knocking like noises.the gasket has a stock indent/grove that goes behind/slightly underneath the flywheel, guessing that was bent more than usual hitting the flywheel on and off.
Thats the story of how I thought I had Cock Knock, I mean Rod Knock.
Hope it helps someone someday
Anyways,recently installed a KA into a s14, turned on engine without exhaust at first to make sure it turned over, everything sounded fine, hooked up exhaust, turned over engine, was knocking loud , like normal engine knock, piston slap, was hoping it was just noise from head, but as you get closer you could tell it was coming from the bottom, first thought is.....I got fucked over on this engine.made sure chain wasnt hitting the valve cover so checked chain, inside of valve cover for wear and tear from chain marks.previous owner had already removed top chain guide. checked compression again and everything was good, but it still sounded exactly like the rod or piston was slapping around inside.so after checking all the head stuff, jacked up the car on jack stands and checked underneath, sounded like it was coming from underneath the oil pan,therefore, again knocking, went on over to the passenger side underneath and it sounded like it was coming from the Tranny.The tranny was missing the 2 brackets underneath the tranny that bolt on to the engine(left and right). so i just added bolts to close up the tranny cover/gasket so it wouldnt be open from underneath.so anyways after remembering that I added bolts to close up the gasket, I decided to remove the bolts and bent the cover/gasket away from the tranny and then turned on the car, noise was gone, not sure why, im guessing the gasket was bent out of shape,so when it was tightened back on it would rub against the flywheel causing knocking like noises.the gasket has a stock indent/grove that goes behind/slightly underneath the flywheel, guessing that was bent more than usual hitting the flywheel on and off.
Thats the story of how I thought I had Cock Knock, I mean Rod Knock.
Hope it helps someone someday