wierd KA24de noise

[Ryan_2.4litereater]

i think my motor is realy strong for its year, but i question it when it makes this noise. i dnt realy kno how to describe it. its not exactly a ticking noise but more like a rubbing noise. its not loud, it realy doesnt sound that harmful or serious but it would b nice to fix it all the way. im thinkin a new valve job. or cam adjustment???

ne ideas???

[grecco28]

mmm, you need to find where is the sound comming from first to figure it out, maybe is a good idea if you can take a video....

[Ryan_2.4litereater]

well it sounds like its right there by the chain.. or cams

[grecco28]

ok, look you talk two places where is the noise comming in the case of the valves if your engine is over 100k miles is normal a moderate noise because normal wear of cams.in the other case if the noise comming from the front of engine is a timming chain tensioner/guides.. you have to listen carefully

[Ryan_2.4litereater]

oh. will the wore cams hurt? n ive heard that replacing the chain is a bit**. do kno how much it all cost. or wut i takes to do it. ?

im real close to buying a brand new ka

[grecco28]

in ebay you can find a variety of kits, brands and prices for timming chains often under hundred plus the labor of the shop...

[Ryan_2.4litereater]

oh ok, cause i had some fool try and tell me it was bout 1500 dollars to do it. ..

[MxExUx]

Pop open the valve cover. Nissan had a TSB years ago about not needing the very top chain guide that sits over and in between the two cams. If its there just remove it and see if the noise remains.

[Ryan_2.4litereater]

i can take that chain off?! i didnt kno that. it wont screw nothin up?

[I_Farted]

a just make sure that you dont mess up the timing...

[Ryan_2.4litereater]

well in that case wuts the point of havin it on then???(probly a stupid question)

[MxExUx]

NO. Don't remove the chain. I'm talking about the chain GUIDE. Its just a peice of flat metal that hangs over the chain in case the chain develops enough slack this guide will keep it from coming off the cam sprocket, well that was its original purpose. Later Nissan figured out that this guide is not needed. The problem is that when the chain gets a little stretched over time (like chains normally do) it starts hitting this guide making noise.