![]() ![]() Once you make it through the probationary period for new members here, you will gain access to our classifieds forums. Rear brakes: Keep an eye on ebay and other used parts sources. And I am certain that having a machine shop recondition a 350x head and rocker box for bad cam journals is quite an expensive venture it it's even feasible to do. They don't make 350x heads any more, all we have are used parts these days, so once they're gone, they're gone. If you run oil that is extremely old and dirty or run it very low our out, the upper valve-train (cam journals particularly) are usually the first to suffer damage. The cam in a 350x rides directly in journals machined into the aluminum cylinder head and rocker box. Keep the oil changed on a good regular interval and don't run it low. Be nice to that 350x engine, particularly the cylinder head. If a valve adjustment doesn't quiet things down, then it is time to start looking for worn/damaged valve-train components. Valve clearance is relatively easy to do, costs nothing and is the most likely cause of your noisy valve-train. I would definitely check your valve clearances first before jumping right to a cam chain issue. ![]() But I am just one man so keep that in mind. In my experience the Honda cam chain tensioners are very reliable, I have never experienced a failure with one. A couple of possible reasons for a noisy cam chain are a defective/broken tensioner, or a chain that is stretched out of spec beyond the tensioner's ability to keep it tight. The cam chain tensioner on the 350x is automatic. ![]()
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