help me please..... 1990 300zx

[k3smostwanted]

i have neither, i have AIM.

[nismo300zx]

Originally Posted by k3smostwanted

i have neither, i have AIM.

ok, i guess i will downlaod aim then....give me a second...

[k3smostwanted]

Originally Posted by nismo300zx

ok, i guess i will downlaod aim then....give me a second...

ok.

[nismo300zx]

ok my s/c is nismo240sx300zx.....add me as soon as you can....and thx again

[rZ12]

Originally Posted by nismo300zx

have a 1990 nissan 300zx, today while i was going to school, i was drifting in the Z

but then suddenly i lost alot of power, and a loud metal noise came on.....i thought i crap, i dont have oil and my bearings are gone, but i check the oil and it was fine, i put some more and right now its not burning any oil....


but the problem still there, i get the metal noise, like "TEKE TEKE TEKE " and the car doesnt have any power....i mean it runs, but really slow, and if u press all the gas, the sound is louder..

what could it be?? help me out....tnx by the way....

Have you (or previous owner) installed any replacement exhaust parts on the car? It's not very likely but if you have cheapo headers with crap welds and poor pipe length tuning, some of the metal jaggies could have broken off and been sucked into the combustion chamber during the exhuast/intake valve overlap because of negative pressure.. This will most likely mean substantial damage to at least that piston and chamber (ie new engine required).. Have to say though I've only ever heard of this in turbo cars (ceramic turbine blade delaminates and is sucked into chamber from poor pipe length tuning)
Far off suggestion I suppose but just helping to make sure all possible problems get covered hehe

[Zgringo]

Sounds like maybe you floated the valves and bent a couple valves. Run a compression check on your left side and see if one of your cylinders is dead.

[nismo300zx]

Originally Posted by Zgringo

Sounds like maybe you floated the valves and bent a couple valves. Run a compression check on your left side and see if one of your cylinders is dead.

what could happen when a cylinder is dead? u need to change all the engine?

[Zgringo]

Originally Posted by nismo300zx

what could happen when a cylinder is dead? u need to change all the engine?

You'll need to pull the head and have a looksee. Could be anything from a bent valve to a cracked piston or both.
Have you run a compression check on it?

[nismo300zx]

Originally Posted by Zgringo

You'll need to pull the head and have a looksee. Could be anything from a bent valve to a cracked piston or both.
Have you run a compression check on it?

nop i havent, its because i took a trip to florida, so i just came home..

but i guess i will take it to my mechanic, if its the bent valve how much it could cost to fix it?

or how about if its a bent valve and a cracked piston??