92 240sx ka24DE
if you can see in the link, the guy holding that piece.. I NEED! some how mine cracked. and need one know, cuz my timing chain is hitting my valve cover. if anyone can sell me that one piece. called nissan but they said they discontinued that part.

the guide is off, but for some reason everytime i acceralate, sounds like somethings hitting unless its my muffler, cuz even before that happened. my mid pipe would rattle

I had a similar problem with my 96 Sentra. The rattling sound was the upper chain hitting the valve cover (the guide had already been removed).

I would check the oil pressure with an oil pressure guage. The chain tensioners work off of oil pressure, so if there is not enough oil pressure the chains will be loose.

Good luck,
Ryan