hi i today decided to start stripping my engine today to investigate a intermitant rattle ive been getting between 2-3 thousand revs and after removing the cambelt cover i found that the cam belt tensioner was collapsed and therefore the belt was very loose so much so that i could move the belt up and down over a inch inbetween the intake and exhaust cam pulleys do you think this could be causing the rattle ive been having as i was sure it was coming from one of the cams ?

 

i now cant decide to replace belt and all other 60k service items and put back together or to carry on striping down to the heads the cams

 

anyway the rattle i was getting is intermitant and starts at around 2k and goes quiet again at 3k and happens when engine is hot and cold and sounds like its coming from the top right hand side of the engine

 

any ideas ?

no thoughts on this ? :(

if you want the extra power you may aswell do them while you have it stripped down it'll save you doing it at a later date

hi i today decided to start stripping my engine today to investigate a intermitant rattle ive been getting between 2-3 thousand revs and after removing the cambelt cover i found that the cam belt tensioner was collapsed and therefore the belt was very loose so much so that i could move the belt up and down over a inch inbetween the intake and exhaust cam pulleys do you think this could be causing the rattle ive been having as i was sure it was coming from one of the cams ?

 

i now cant decide to replace belt and all other 60k service items and put back together or to carry on striping down to the heads the cams

 

anyway the rattle i was getting is intermitant and starts at around 2k and goes quiet again at 3k and happens when engine is hot and cold and sounds like its coming from the top right hand side of the engine

 

any ideas ?

 

not sure about the rattle - you'd expect it to be pretty cnstant if it was the belt... can't believe how lucky you've been - at least your just looking for a rattle and not a new engine!!

The VVT springs in the ends of the intake cams can weaken and cause a rattle , i,ve got it on mine but mine rattles on tickover upto about 2k revs .

It,s only intermittent and an easy fix .HTH

>> The VVT springs in the ends of the intake cams can weaken and cause a rattle

 

Weak VTC springs normally cause a rattle at low revs/low speed and the sound tends to become less as soon as the engine gets up to operating temp.

 

if the sound is between 2k-3k rpm and it's a *raw* rattle it's usually a sign of worn/damaged main crank or rod bearings.

 

Does the rattle become less when you give it less throttle (but keep the rpms between 2-3k) ?

the rattle stays constant at any speed up to 3k no matter how hard i accelerate and goes quiet on over run but is deffo intermittant some days it runs sweet and others sound like a diesel, it really sounds like its from the top right on the engine

 

 

well im gonna get the belt, tensioner,water pump and vvt springs and give it a go :) if the rattle is still there then ill strip and rebuild it

 

btw where would be the best place to get the belt and other parts i need as dont want to give nissan a penny and aint to sure on the cheap pattern parts the motor factors near me sell

finaly got the parts today and put it all together and the rattle is totally gone and now runs sweet :dance: :dance: :dance: