Bad Rattle At Front Of Engine, Can I Just Remove The Upper Timing Chain Guide???

[novaguy14]

I have a 240sx with a bad rattle at the front of the engine, I was wondering if I have to replace the timing chain to fix this? Could I just remove the guide? Does it (the guide) really need to be there??Could I just replace the tensoners?And what is the maximum or minimums that each of these procedures would cost

Thanks, any comments would be appreciated.

[NISTECH]

if you have a dohc you can just remove the top guide .it may already be broke. it is ok to discard it thats what was done on a nissan tsb in the past if it was found broke

[midnightsliding]

hey sorry its kindof late looking at the dates, but i was wondering about that upper guide, is that what makes the rattle, if i remove it what will it help?thanks

[574-240sx]

It won't help if the tensioner is trashed already. Take the valve cover off to see if the top guide is broken just sitting and rubbing on the chain and tapping the valve cover, that might be the noise. Usually when that breaks your tension is usually bad but not in all cases.

[midnightsliding]

ok thanks.

[89SiR]

and what if the guide has been replaced with a new metal one and the noise is still there?

[s13sr20chris]

the very top guide that goes over the two cams should not be replaced but just removed alltogether.