s0ber

iTrader: (7)

someone please help me out im about to go nuts with that knocking...

Could someone tell me if they have experienced this before or heard or something.... I hear a loud knocking from the engine bay like if the lifters or something are hitting the top, but its not coming from the top of the engine its from the side where all the belts are... It does get faster with the higher rpm and its very loud coming from the belts...

Does anyone have any clue on what it is? If its coming from the belts making a KLUNK KLUNK KLUNK noise what could it be? Do belts when they get old make a KLUNK noise or what?

Jamsan

iTrader: (2)

They'll squeel if anything, unless they're caught on something, then they'll klunk, but i doubt its that....sounds like your timing chain

s0ber

iTrader: (7)

omg your ****ting me

s0ber

iTrader: (7)

someone else give me some ideas is the timing chain about $1000 like the web says??? ((

95maxmadman

I think that price is mostly labor related. Or is that the cost of the chain??? Where are you getting that number?

s0ber

iTrader: (7)

auto.consumerguide.com under used cars nissan maxima 95-99 its under the problems list... according to them timing chain replacement $1200 or somee****... How much is it in reality I know the timing chain kit cost about $230...


You guys sure it cant be NOTHING else by all the belts?

s0ber

iTrader: (7)

where is the damn timing belt on the car by the way?

95maxmadman

It's on the belt side, under the timing chain cover.
I guess it's a pretty time consuming job to do.
Anyone ever done it?

Also, you may want to ask around about a tsb. I think there is one.
Actually, if there is, can someone pm me with the info? I read it
on the .org before but alas...search...

s0ber

iTrader: (7)

http://www.nissan-techinfo.com/nissa...2.asp?mscssid=

95maxmadman

That should cover it then, right?
What years is that for?

s0ber

iTrader: (7)

i dont know, what do i do with that tsb? lol, if the timing chain cover accessible from the top of the engine bay? Can I stick my hand down there and feel if I feel any of the knocking or something

Street Reeper

The only thing I could think of is that one of your belts may be frayed causing a peace to klunk against somthing each time it turns, have you looked your belts over?

s0ber

iTrader: (7)

yeah, no slits of anything on them there fine from what it looks like to me....

its not like a rubber hitting something its like KLUNK KLUNK sounds like metal... I guess it is the dreadful timing chain.. This sucks this kind of crap only happends to me

Will it eventually break? If it does what happends?

s0ber

iTrader: (7)

95-96 they have one for 97-98 i think too

I H8 COPS

It is not the timing chain! I bet anything! Unless you have more or close to 150K on your Max, it is NOT the timing chain! I have yet to hear of a 4th gen maxima whose timing chain gave out before 150K or so. Although different places specify different mileage at which to replace the chain, 99.9% of the time it is guaranteed to last until 150K. Also, this one mechanic told me that the lifetime of the timing chain does not depend on how hard you drive your car, but rather on how old the timing chain is, the weather that the car resides in, and, most importantly, the mileage.

Street Reeper

Just go have a mechanic check it out, if it does break you might as well scrap the car, reply back to this thread when you find out.

Is your car running any differently? Sometimes a bent valve can cause a noise like your talking about. My roomate had a Type-R that had the same symptoms, he was taking it to the limit on the entrance ramp of a highway, was in v-tec coming up on redline and shifted from 3rd to second (he meant to go into 4th) the piston smacked his exhaust valve and bent it (all honda driver jokes welcomed by the way.)

PAREDLINE

There are plastic guides around the timing chain assembly that basically guide the chain. They use plastic because it doesnt make noise. However once the plastic wears off or melts off the chain spins around metal guides (below the plastic).

This can cause a "whirring" noise. not necessarily a knock.

A distinct "knock" can be caused by a number of things. Probably not the chain which spins. Knocks are usually caused by things that move up and down or side to side.

Best bet is to do a compression test and see if there is equal compression. Nissan engines are notorious for bearing failure. If your crankshaft pulley is jumping up and down thats what it probably is. The first bearing to go is the one on the pulley side of the engine.

My advice would be to do an engine swap with a junkyard motor.

then sell the car

s0ber

iTrader: (7)

ok, uhm... uhm... uhm...

i just went outside and its not the timing chain because its not coming from there. its coming from under that where the pullys are... I would have to get a whole new engine if the little bearings screwed up? WHY?!

s0ber

iTrader: (7)

ok I just got the car about 3 weeks ago.. my life sucks if it is what the guy on top said... I just got rid of a 626 for tranny failure, now im getting engine failure.. weee....