me HATES breaking things

simon

simon

Famous Member
big big big PITA.

One second of less attention while chamfering the oil holes, and now I fear I have wasted a brand new rocker shaft. Whadda ya all think?

I intended to build a valvetrain that last forever, but with my current loss of discipline and accuracy, I just might be tempted to apply for an internship at car craft magazine.

*off to bang head ´gainst the wall*
 
My personal advice, which needs to be reviewed by others here.

Linish with fine emery, and ensure you go easy. There are buffing compounds which will work to reduce the severity of the chatter mark.

I'd take a step back, and look at the total picture. There are metal spray compounds which may work.

I'd take a 'punt'. If it was my engine, just for me, I'd use it. If I was selling an engine, no way, not ever.

Metal is dimensinally stable, and the oiling design may not be compromised that much.
 
I wouldn't buff it or abrade it for cosmetics.

That'll be fine. You're not dealing with combustion pressures, just 20-30 PSI (at most). Only thing to watch is that nothing has been deformed such that it stands above the shaft original surface. That would need dressing.

Adam.
 
Just get some fine emery cloth and buff it lightly with a shoeshine motion, it will be fine. Don't try to remove the scratch marks, just knock down the high points. If you remove all of the marks, then it will be undersized and I would consider it ruined, the important thing is to not have any points sticking up above the machined surface. I have seen many similar "imperfections" over the years in my sawmilling experiences that never gave any trouble at all. Not to worry, this will just hold the oil better :D
Joe
 
I also agree...just get an emory cloth and smooth down the edges that may be sticking up. Don't try to remove the scuffs.

Slade
 
thanks guys... ya really know how to cheer a fellow up.

Since the shaft cost me only around 25 bucks plus taxes and shipping, I take it as a lesson to be learned and experience with hardened steel.

Before I scuffed the shaft with the carbide stone, I ruined a brand new reamer and a couple of nitrided drill bits (trying to enlarge the lower bolt holes to .472" since I am using fully threaded ARP bolts without shank)

Decided to make the best out of today´s destructivity of mine and stripped the roof of the `65, quite successfully...gave me time to settle down and relax. plus the roof skin is smooth as a womans back now, with only a couple dents on the driver side.
 
yeah, if something isnt working quite right, go on to something else...if its a problem that needs solving, your subconscious might think of a plan while doing other thing...

8)
 
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