ticking under valve cover...what could it be?

[bnelsonjax]

I have a noise that started today. It's coming from just under the valve cover it sounds like a tick or grinding tick sound that I can here when in idle. I can record the sound if that would help.

here's a pic with the sound coming from somewhere around where I circled.

ps. I checked the oil level (its good) and i searched the forums lol)

[bnelsonjax]

uploaded a sound clip of what it sounds like to help anyone.

you can here it here:

http://acspro.net/pics/noise.mov

[ArcherV20]

Whoa dude that sounds ****ing bad. It might just be the ****ty recording you made (at first I thought it was a bunch of frogs ribbiting). Anyway, which engine / car is this? Does the car run differently? Are there any changes aside from noise.

[bnelsonjax]

acutally the sound clip sounds like the actual noise. it kinda does sound like frogs ribbiting lol.

its a S13 stock engine, aside from the noise it runs just fine

[DjTravisSW]

You know what.

I think my S14 Ka24de has the same thing....

Too lazy to go in the garage and start up my car though. Long day at work. lol

[nightkid86]

timing chain guide. remove it/them.

[ddgsxr504]

Ohnoesitsdamuthfukingrmlans!!

Most likely your upper timing chain guides, Nissan suggests removal of them since they don't do $hit anyway.

[Florida240sx]

Yup timing chain guides. Top one is real easy. the other one takes another 20 minutes because you got to remove the front cover....

[SR20drftSX]

no no no...if its an SOHC - SKINNY VALVE COVER then its the timing chain guides and yu need to replace both of them..if its the DOHC then yu can do what the others ahve said...

[g2blkemike]

1992 240SX SE 5spd

Hey i have the same noise; it sounds like a rubbing/grinding. I opened my valve cover and the top guide broke off. I also noticed that the chain had been rubbing on the underside of the valve cover. I pressed inbetween the cams on the chain and its kinda loose.

You guys say to remove the top one and the one on the driver's side, (shaped like a belt kinda?)

Question 1: will the top one that broke off and cant be found be a problem?

Question 2: if i remove the driver's side guide as well, will this noise stop??

need help asap.

[email protected]


Modified by g2blkemike at 4:57 PM 9/29/2006

[SR20drftSX]

umm if yu can..take off yur oil pan and i guarentee its in there layin round somewheres...i had the entire right guide on my SOHC layin down there..take of the top guid on the dohc i guess but leave the other

[nismoracingsx]

yes, sohc's should have the guides, w/o them, there have been times when the chain will rub on the head and wearing chain=blown motor, just my .02

[SR20drftSX]

yep..w/o the guides on the sohc..the chain will eat thrw the timing chain cover AKA (water jacket) and put collant into the oil and then yur F'd!

[ricebike]

umm, guys...

g2b has the DOHC engine...

[S3t0_S13]

lmao.yea i have the same exact problem, my engine does that as well, DOHC, and the guy i bought it from said it started doing that when he changed the chain himself, probably did something wrong.is there a write up anywhere or some quick DIY pics 2 fixin this noise

dont know bout the rest of u, but when my idle drops to about 900 it makes the noise, other then that, it hums like a bird

[krazyk4211]

It is definantly a timing chain guide. I had the exact same noise. Even the nissan manual says if they break just remove them.

[S3t0_S13]

which chain? theres like 3 isnt there?

[dingofarmer]

It was my t chain guide, actually it broke at the base and was ratteling betwen the valve cover and the chain, sounded awfull, however, the guy who I bought the car from let me take it to my garage, I pulled the cover and threw the broken part away. replaced everything, and it sounded great, so I bought it.Very easy, just remember plug order, reseal the gasket, and torque the cover bolts properly.

sato, looks like yours is already gone from the pic.

[S3t0_S13]

srry thats a pic i found off the forum, i dont know where it was supposed 2 have been, and i was in a hurry only pic i found of valve cover offapprox. where should it be??

[Nissan_240sx]

look in the middle of the cam sprockets, right inbetween is where it should be. You can even see the two bolts that hold the guide down

[S3t0_S13]

alright deffinatly, wait so in that pic up there its alredy off???

hmmm

[S3t0_S13]

zer...age=1

Did i find the cure 4 my problem??

someone plz tell me, as that sound clips is the same one i havethankssss

[Mr HuSTLeR]

BUMP!!!

Mines a SOHC... can anyone help?

[S3t0_S13]

if its an SOHC - SKINNY VALVE COVER then its the timing chain guides and you need to replace both of them..if its the DOHC then you can just remove them. thats what they said up there earlier in the post, theres a writeup on how 2 remove it