quote:Originally posted by Daniel_Jones:
>I've had two batches of the same part number valves and one batch was magnetic and the other wasn't. Dan Jones
Well, thats kinda weird, same valve, 2 different versions of stainless. I'll bet they're manufactured off shore, if you know what I mean.
Dan, The idea just popped into my head, a way to check for stainless valves without disassembling anything. I had never checked a valve with a magnet before. You know, genius at work! I grabbed a valve off the shelf that night, the head was not magnetic, the stem was not magnetic, but the tip of the stem was. DOH! So I checked the manufacturer's web site, sure enough, they weld a hard metal on the tip for durability. There goes my stroke of genius.
I consoled myself with a few buttery nipples.quote:Originally posted by DeTom:
Now you see why George should design a system that doesn't use reciprocating valves at all??? He should design a head that won't let the valves fall down inside the cylinder ever.
DeTom, I know how much you like high revving engines, you want to design a valve train that revs to the moon. the current Yamaha 600cc sport bike, I think the model is YZF600, has a 17,500 rpm red line, off the show room floor, using conventional DOHC valve train. that's not a misprint, 17,500! No Formula 1 technology, just valves, springs & cams.
quote:Originally posted by DeTom:
When George and I retire,
Just when is that my friend? I'm ready.
Your friend on the DTBB, George