weird engine noise

[jst527]

ok i just bought a 92 240sx yesterday there is a weird noise comming from the engine sounds like clanking it gets louder when the rpm is at 700 i dont know how else to describe it. would anyone have an idea what could be causing the noise? thanks

[jst527]

ok i figured it out the chain is hitting on the plate over it. is it ok to take that plate off? thanks

[corn322]

That's the timing chain guide. Yes, take it off. There's also another chain guide off to the side, you have to pull the upper timing cover off to get to it.

[SR20drftSX]

now that all depends on if its the DOHC or the SOHC , if yu have the DOHC then go ahead and pull em off..if yu have the SOHC then id suggest replacing all parts and it will stop , but yu cannot remvoe the guides from the SOHC

[S13_newbie]

whatz the proper way to fix that?? replace a new guide?

[180fan]

DOHC's have two chains. There is are upper and lower chain guides on the DOHC, only a set of lower chain guides on the SOHC. The upper chain guides can be removed, the lower chain guides need to be replaced.