ok so all i did today was change my plugs/wires and put on a new negative battery terminal. now all the suddon i have a knocking at 2500 RPMs but only when its slowly going up, not when its held there. and when im on it and go past it i hear nothing.....please tell me there is something else it could be other then rod knock. anything at all. also my its idling high. like 1000-1500
ROD KNOCK!?
- Thread starter againstdawall06
- Start date
Are you sure that you plugged the wires in correctly...1 to 1 2 to 2 etc....a simple fix, but maybe.....
does your car seem to have less power? Maybe check the plugs and wires, make sure they are gapped correctly (depending on which type you used) and the specs on the wires...
Could also be a lifter making the noise. a little bit of a description would help out a lot. Where's it coming from? Is it a higher or low pitched sound?
I'd say it was a lifter, of course not having heard it I couldn't really say. Try running a bit (1/4 of a qt or so) of ATF in your oil (if you think it may be a lifter) it'll fix that right up. JSpec7m88 had the same kind of deal w/ his car and we did that, I don't think it's making noises anymore, and I know for a fact it fixed my Cressida right up.
I'd say it was a lifter, of course not having heard it I couldn't really say. Try running a bit (1/4 of a qt or so) of ATF in your oil (if you think it may be a lifter) it'll fix that right up. JSpec7m88 had the same kind of deal w/ his car and we did that, I don't think it's making noises anymore, and I know for a fact it fixed my Cressida right up.
i had what sounds like the same problem.
http://www.supramania.com/forums/showthread.php?t=18610&highlight=rod+knock
mine went away and I'm pretty sure now it wasnt in the bottom end.. I was full on oil, and if you have knock its not going to go away or fade, its going to be there at that RPM because its a mechanical defect in the engine. Anyways, I hope its not knock. good luck.
http://www.supramania.com/forums/showthread.php?t=18610&highlight=rod+knock
mine went away and I'm pretty sure now it wasnt in the bottom end.. I was full on oil, and if you have knock its not going to go away or fade, its going to be there at that RPM because its a mechanical defect in the engine. Anyways, I hope its not knock. good luck.
its not valve tick i alway had it. its a lod clunk. i dont think its coming from the bottem end but i could be wrong......my main question is is there anything having to do with mesing upo a wire install that can cause a sound like this.
mkiiSupraMan18 said:
Yeah, like he said. Have someone sit in your car and hold the RPM's at 2500. That's the point where you hear the knock right? One by one unplug a spark plug wire. Check if the noise went away. Plug it back in and check another wire. Do that until the knock goes away. If it does go away then more than likely you have a rod knock in that cylinder that you unplugged the spark plug wire. If the knock did not go away then it's coming from somewhere else.
we pulled out all the plugs and wires and re did it. it went away. i guess maybe them being out of order unbalanced it and made the sound. but it still idles high. im pretty sure my linkage is sticking cause when i pull it back the idle goes down to normal. but i tried spraying it with lub and no help...and ideas?
Adjust the length of the linkage bar? Make it a bit longer. :icon_bigg
May also have a vacuum leak, you may want to check that too.
May also have a vacuum leak, you may want to check that too.
Matt, it still does it very lightly, but not like before. I also held my RPMs @ 2500 and pulled the plugs and the sound continued so I'm pretty sure it is/was a lifter. Maybe I need to put some ATF in again? I dunno...Maybe I'll go pull them all and make sure they're in order!!!!!
ok so i found out whats up with the idle......the cable is to tight. so i losened that up....but i found out theres still a knock....but now its only when i hit the gas, it knocks a lil then goes away as the rpms climb. not sure what it is now..
when my motor had a rod knock it would rev to 2500rpms and start knocking and then fade away now the rod is on my work bench and there is a whole in the side off my block. if i where you i would take the oil pan off and put new bearing in it. there only about 50-100 dollars for new oem ones. and it really easy to do. thats my help
it doesnt do it at any certain rpm now.....just right when you tap the throttle, that moment it takes for the RPMs to rise, it makes a few clunks then goes away......and same thing when the RPMs stop to go back down to idle....idk if i explained this clear enough.
Do you know the difference in sound between flame front collision(knock) and a spun bearing(knock)?