Another knock question...

[A a l2 o N]

So I have a little bit of a problem i just recently swapped my coupe with an s13 sr. The motor came from a running car, and the day i went to swap the car it started knocking from out of no where so i drained the oil to check for metal shavings, found nothing. Figured maybe it was just a fluke did the swap...turns out wasnt a fluke.

But anyway the knock is very slight, i have had a car with knock and it was much worse than this sounds and also happened throughout all rpms this only happens between 2500-3500 rpms

A link to what the noise sounds likehttp://www.youtube.com/watch?v=dxsLYPow1W4

And one more question...on the turbo side of the fmic the piping seems to keep popping off of the intercooler when i try to reach full boost no matter how tight i make the clamp. Any suggestions?

Thanks
Modified by A a l2 o N at 10:04 PM 10/6/2009

[PyR0NiAk]

not sure about your knock, but as far as the fmic... Try T-Bolt clamps, although I wouldn't be trying to reach full boost with a knock...

[A a l2 o N]

Those are the clamps being used right now

[MrSoutherland]

not sure about your knock, but as far as the fmic... Try T-Bolt clamps, although I wouldn't be trying to reach full boost with a knock...

That's what I just thinking. Why would you try boosting if your motor is knocking?

[Jasong]

Have you checked your spark plugs. I had a knock that I would have sworn was a rod. It turned out to be a bad spark plug.

[A a l2 o N]

Have you checked your spark plugs. I had a knock that I would have sworn was a rod. It turned out to be a bad spark plug.

If that is the case I will be blown away lol...I will stop and get some plugs tomorrow

[Jasong]

Could also possibly be a bad knock sensor. I narrowed my bad plug down by unplugging coils one at a time. The bad plug didn't change the way it idled.

[Justin35ll]

if it is a knock it's not going to get anybetter.as for piping try getting new clamps.

ps. u stole positrons avy

[A a l2 o N]

if it is a knock it's not going to get anybetter.as for piping try getting new clamps.

ps. u stole positrons avy

Yeah thats what i was thinking so it really doesnt matter if i try to boost it or not

and yes i know i just thought it was awesome considering my coupe is white and im just borrowing it lol

[A a l2 o N]

Could also possibly be a bad knock sensor. I narrowed my bad plug down by unplugging coils one at a time. The bad plug didn't change the way it idled.

Well the knock isnt at idle though its only through those before mentioned 2500-3500 rpms...and how would a bad knock sensor create an actual knock?

[Jasong]

It wouldn't create one just not correct timing to get rid of it.

[PyR0NiAk]

try running a higher octane fuel....

[A a l2 o N]

try running a higher octane fuel....

I am running 93 right now

[PyR0NiAk]

nevermind then... i was kind of hoping you might have had a compression knock.. so many people call things KNOCKS that aren't really knocks... There is just a lack of words that describe sounds better... When people think knock, they think of the sound of bent rods and things of that nature, so without a sound clip, it's EXTREMELY hard for us to tell you what to do...

[A a l2 o N]

nevermind then... i was kind of hoping you might have had a compression knock.. so many people call things KNOCKS that aren't really knocks... There is just a lack of words that describe sounds better... When people think knock, they think of the sound of bent rods and things of that nature, so without a sound clip, it's EXTREMELY hard for us to tell you what to do...

Your wish is my command

Here is the direct linkhttp://www.youtube.com/watch?v=dxsLYPow1W4

[tvmendoza]

This is just an idea, but my friend's 3000gt had his fuel lines full of crap, therefore therefore the gas wouldnt burn as suppose to.Worth checking the lines

[PyR0NiAk]

This is just an idea, but my friend's 3000gt had his fuel lines full of crap, therefore therefore the gas wouldnt burn as suppose to.Worth checking the lines

Did you even listen to the sound clip?? Dirty fuel lines aren't goingto cause the sound his engine is making...

[A a l2 o N]

This is just an idea, but my friend's 3000gt had his fuel lines full of crap, therefore therefore the gas wouldnt burn as suppose to.Worth checking the lines

I changed the lines and fuel filter when the motor was swapped in...

[boro drift]

Sounds like a problem in your valvetrain to me. Possibly a collapsed lifter, or abnormally worn rocker arm.

[Jasong]

I agree with the valve train add oiler to that list also.

[A a l2 o N]

I agree with the valve train add oiler to that list also.

This is probably a stupid question but...by oiler do you mean oil pump?

[A a l2 o N]

Sounds like a problem in your valvetrain to me. Possibly a collapsed lifter, or abnormally worn rocker arm.

originally thats what i thought it was by the way the knock came and went but i just thought that the noise was a little to loud for it be that. So im thinking that im just going to order a new long block from jdm of miami and tear down this motor

Speaking of which has anyone dealt with them personally?

[boro drift]

originally thats what i thought it was by the way the knock came and went but i just thought that the noise was a little to loud for it be that. So im thinking that im just going to order a new long block from jdm of miami and tear down this motor

Speaking of which has anyone dealt with them personally?

A knock from the bottom end will not come and go. The noise you have is plenty loud to be a valvetrain related problem.

[A a l2 o N]

A knock from the bottom end will not come and go. The noise you have is plenty loud to be a valvetrain related problem.

Touche sir

[WizardBlack]

1. I can't hear the low quality vid very well (yes, I was in HD).2. Did you hear the engine RIGHT BEFORE it was removed? If not, it could have been ragged somehow before it was removed.3. Pull the valve cover and check everything in the valvetrain very carefully. Look for loose parts, but not fallen out, etc.4. Try using a screwdriver to hear for where the sound is coming from.

[MC Mate]

on my ca18, i had almost the same knock, and it came only after 2500-3000, and it was piston slap (bouncing in the bore) when i was kick down , after 3500-4000 it stop knocking , but in city driving it was knocking like hell

[Asia989]

i got the same prob with mine, valvetrain still looks minty fresh, draind the oil and it was jet black, well see thursday what the damage is on the bottom

[A a l2 o N]

1. I can't hear the low quality vid very well (yes, I was in HD).2. Did you hear the engine RIGHT BEFORE it was removed? If not, it could have been ragged somehow before it was removed.3. Pull the valve cover and check everything in the valvetrain very carefully. Look for loose parts, but not fallen out, etc.4. Try using a screwdriver to hear for where the sound is coming from.

Yes i heard the motor before it was pulled (i pulled it)

[A a l2 o N]

i got the same prob with mine, valvetrain still looks minty fresh, draind the oil and it was jet black, well see thursday what the damage is on the bottom

Please update me with what you diagnose!

[Asia989]

number 3 rod knock, spun the bearing but i dont have to get a new crank