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Doctor, I've got no pulse!
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<blockquote data-quote="69ST" data-source="post: 184615" data-attributes="member: 5"><p>Not liking the look of that cylinder. The scoring at the bottom might not be as bad as it appears to be...but..."rust never sleeps" and that pitting, in the ring-swept part of the cylinder is probably worse (i.e. deeper) than it appears to be. </p><p></p><p>CJ is right about getting the rockers back in their original positions. As long as you don't have scoring & obvious wear on the contact surfaces, they should be okay to reuse. That said, the rockers, cam lobes, valve stem tips and lash adjusters all develop wear patterns over time. Once you start replacing parts, those patterns...which developed slowly, and matched...are disturbed. It won't hurt anything but can result in valvetrain noise(s) that vary by engine temp & rpm. That's the bad news; the good news is that, eventually, those parts will develop matching wear patterns as they break-in and things will quiet down.</p><p></p><p>Gary is right about the cost of a bore-up kit. Compared to overboring & restoring an old cylinder, it's usually a wash.</p></blockquote><p></p>
[QUOTE="69ST, post: 184615, member: 5"] Not liking the look of that cylinder. The scoring at the bottom might not be as bad as it appears to be...but..."rust never sleeps" and that pitting, in the ring-swept part of the cylinder is probably worse (i.e. deeper) than it appears to be. CJ is right about getting the rockers back in their original positions. As long as you don't have scoring & obvious wear on the contact surfaces, they should be okay to reuse. That said, the rockers, cam lobes, valve stem tips and lash adjusters all develop wear patterns over time. Once you start replacing parts, those patterns...which developed slowly, and matched...are disturbed. It won't hurt anything but can result in valvetrain noise(s) that vary by engine temp & rpm. That's the bad news; the good news is that, eventually, those parts will develop matching wear patterns as they break-in and things will quiet down. Gary is right about the cost of a bore-up kit. Compared to overboring & restoring an old cylinder, it's usually a wash. [/QUOTE]
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Doctor, I've got no pulse!
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