Ka24de rattle!! Not upper guide - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

maxmokramer · 05-10-2013, 10:54 AM

I have a rattle coming from under my valve cover and i would like some help figuring out what it could be! i removed the upper timing chain guide and its still doing it!

heres a video of the noise: https://www.youtube.com/watch?v=zFua1u4CTS4

AHHHHH help its super annoying!

THANK YOU

92 240sx coupe

foreverdeath · 05-10-2013, 10:59 AM

You could be having issues with your lower timing chain, the other weeek my lower tensioner went out and i had a simair nosie that would go away after about 2500rpm. Pull your upper timing cover and look. also ive heard that the lower timing guides the plasics likes to break.

AutechKouki · 05-13-2013, 05:17 PM

What's the mileage? Think your chain is just too stretched out causing it to slap. I've got the same issue and I'm at 213k on the KA. Replacing it would most likely fix your noise issue, and it'd probably also improve your performance. A stretched chain can slightly put your engine out of sync. I don't care since I'm going SR anyway.

ivankol · 05-17-2013, 06:46 PM

if it sounds like bb's in a can sorry bro ... check oil pressure.

05-10-2013, 10:54 AM	#1
maxmokramer Join Date: May 2013 Location: Portland, OR Age: 27 Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	Ka24de rattle!! Not upper guide I have a rattle coming from under my valve cover and i would like some help figuring out what it could be! i removed the upper timing chain guide and its still doing it! heres a video of the noise: https://www.youtube.com/watch?v=zFua1u4CTS4 AHHHHH help its super annoying! THANK YOU 92 240sx coupe

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05-10-2013, 10:59 AM	#2
foreverdeath Zilvia Junkie Join Date: Sep 2012 Location: va beach Age: 28 Posts: 318 Trader Rating: (3) Feedback Score: 3 reviews	You could be having issues with your lower timing chain, the other weeek my lower tensioner went out and i had a simair nosie that would go away after about 2500rpm. Pull your upper timing cover and look. also ive heard that the lower timing guides the plasics likes to break.

05-13-2013, 05:17 PM	#3
AutechKouki Zilvia Addict Join Date: Jan 2011 Location: SoCal Age: 29 Posts: 669 Trader Rating: (43) Feedback Score: 43 reviews	What's the mileage? Think your chain is just too stretched out causing it to slap. I've got the same issue and I'm at 213k on the KA. Replacing it would most likely fix your noise issue, and it'd probably also improve your performance. A stretched chain can slightly put your engine out of sync. I don't care since I'm going SR anyway.

05-17-2013, 06:46 PM	#4
ivankol Zilvia Member Join Date: Jan 2008 Location: in my house Age: 33 Posts: 229 Trader Rating: (3) Feedback Score: 3 reviews	if it sounds like bb's in a can sorry bro ... check oil pressure.