need help

[oneruffryder42]

ok here it is?? when i drive the car at 3g's this knock sounds. when im off the gas it goes away. when i just rev the car in N no sound and some times it sounds. what could it be ??? a rocker arms? drive tran? spun a bearing. but the car fells fine goes to full boost and runs just like befor. what u think it is?HELp

[pulsar gtr]

Ca's don't have rocker arms, it does however sounds like a spun bearings.

Check your oil for some metal in it.Another way you can check for spun bearings, it doesn't always works, but I have checked an engine with this method before and I caught a spun bearings.Remove all sparkplugs out, bring cylinder #1 all the way to the top. take a long screw driver and stick it on the top of the piston, If you feel the piston went down just a tiny bit down, you have a spun bearing on that piston, if not, bring piston # 2 all the way to the top and do similar process, same with cylinder #3,&4, until you see which piston kinda sinks down a tiny bit. Remember, this method doesn't always works. The other method is to remove your oil pan and inspect each bearing by removing the connection rod bearings out.

Good luck,

RafiPULSAR GTR

[oneruffryder42]

if i did spun a bearing. how much will it cost 2 fix??? any ideas thanks

[pulsar gtr]

It all depends how much damage happened. The min thing, is replacing the rod bearings, which you can have them replaced while the engine is still in the car by remove the oil pan and then removing the bad bearings and installing the new ones. But if it has been doing this sound for few days now and you have been boosting it, chances that you might have caused some damage to the crank itself, which in this case depending how severe the damage is, you either need a new crank, or you can get it machined and have new bearings with different grade fitted.

RafiPULSAR GTR

[oneruffryder42]

homies tell me 2 get a ca18det longblock and put that in. they think its the bearing 2 . so where can i get one. help. thanks for the help pulsar gtr