chain guards and valve cover cracks - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Colorful.Knightz · 03-02-2020, 05:36 PM

Already removed the top guard on the timing chain under the valve cover. wanted to ask if i need to take out the second one also? and i know if i need to than im probably going to fix up the chain adjuster to make sure its working properly.

second question is that under my valve cover i have like hairline fractures in one or two places. wanted to know if i should replace it or not?

gaz_moose · 03-02-2020, 11:42 PM

this on an SR? if so the 'cracks' are pretty normal and are just casting marks.

why are you taking the chain guides off?

NukeKS14 · 03-03-2020, 04:25 AM

Yeah, engine would help here. If its a KA, the only thing you need on the upper timing chain is the tensioner. Pics would also help.

03-02-2020, 05:36 PM	#1
Colorful.Knightz Join Date: Dec 2019 Location: California Age: 22 Posts: 8 Trader Rating: (0) Feedback Score: 0 reviews	chain guards and valve cover cracks Already removed the top guard on the timing chain under the valve cover. wanted to ask if i need to take out the second one also? and i know if i need to than im probably going to fix up the chain adjuster to make sure its working properly. second question is that under my valve cover i have like hairline fractures in one or two places. wanted to know if i should replace it or not?

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03-02-2020, 11:42 PM	#2
gaz_moose Zilvia Member Join Date: Mar 2008 Location: engerland Posts: 242 Trader Rating: (0) Feedback Score: 0 reviews	this on an SR? if so the 'cracks' are pretty normal and are just casting marks. why are you taking the chain guides off?

03-03-2020, 04:25 AM	#3
NukeKS14 Zilvia Member Join Date: Apr 2019 Location: KS Posts: 221 Trader Rating: (1) Feedback Score: 1 reviews	Yeah, engine would help here. If its a KA, the only thing you need on the upper timing chain is the tensioner. Pics would also help.