need a camshaft for a 82 yamaha seca 400cc xs motor.

[TurboT]

Originally Posted by Weldangrind

Ok, didn't know.

I know that some cam grinders have welded the lobes to subsequently grind a new profile, but I wasn't sure if a broken shaft could be repaired. BTW, I've read that the Japanese have excellent quality steel, rivaled by the Swedish.

I didn't work on enough Volvo's to get a feel, but the Japanese steel parts were always quite nice...made pretty sparks. On the flip side, Dodge had some really ugly looking steel pieces and could be like taking your life in your hands picking them up without gloves.

D, you're correct on building up a lobe. It is much like crankshaft welding where if the journal is chewed down below bearing sizes you can weld the journal back up and regrind it to spec.. but if the shaft was in two pieces or even cracked, no go, it's in the scrap heap.