cast iron weld, Indian motorcycle jug

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About six years ago a man that specializes in rebuilding Indian motorcycles had a local shop install a valve seat insert in an Indian jug. These old jugs had the valve seats cut directly in the casting. That jug had excessive valve recession- as the seat area wears the valve sinks into the casting. A typical repair is to counterbore the area and install a seat, usually made of a grade of stainless. He had a seat that installed by the "shop up the road" it fell out the first time the engine ran. The Indian rebuilder found my shop and asked me to weld the counterbored area and cut the seat in the weld. That repair was done 6 years ago and was on his personal bike which he rides quite a bit. So - he is currently rebuilding another Indian for a customer of his, it had excessive seat wear.  Sent it for welding and machining. I was in rushing to get'er done and forgot to take a "before" pic, so  here is the weld and results.700 pre heat-OA spray weld-700 post heat-shot blast to relieve and coolPeter Attached Images
Reply:I don't do much cast.  Are you using a high nickel rod in order to make it free machining?My only experience has been with ni55 and ni99, so I don't know much more than that.  The ni99 seems to work better and grind better(never had the chance, thank god, to machine it)Wish more folks would get in on this, there's a lot to be learned here"Any day above ground is a good day"http://www.farmersamm.com/
Reply:Originally Posted by farmersammI don't do much cast.  Are you using a high nickel rod in order to make it free machining?My only experience has been with ni55 and ni99, so I don't know much more than that.  The ni99 seems to work better and grind better(never had the chance, thank god, to machine it)Wish more folks would get in on this, there's a lot to be learned here
Reply:I hope you keep posting, it's interesting seeing the repairs you make.  Nice job.
Reply:Thanks, I'm tryin' to get there, but it's a long pull.  At least I'll have some idea of what's goin' on when it comes time to get something like this done.  Won't have to worry about some dude shinin' me on about what he's gonna do."Any day above ground is a good day"http://www.farmersamm.com/
Reply:FWIW: hobby weldor, keep it simple.  Can you tell me the advantages over TIG? Is that process an expensive set-up, compared to a $2500 Syncrowave, for instance? Heck, the 700* preheat would suck to TIG around. Would it be in 10% of the weld shops, 2%? I learned on O/A, yet know little of it capabilities. I'm sorry it's a fading art.As above, very interesting. Keep 'em coming.Edit: For you young 'uns, look at the valves next to the piston bore. That's called a flathead. Last edited by Craig in Denver; 03-25-2009 at 01:07 AM.9-11-2001......We Will Never ForgetRetired desk jockey. Hobby weldor with a little training. Craftsman O/A---Flat, Vert, Ovhd, Horz. Miller Syncrowave 250
Reply:i too would like to learn more about o-a spray..
Reply:Very nice precise build up.Tim Beeker.
Reply:Nice looking bead ....Mike
Reply:Here's a pic of a powder spray torch.  You can find them on eBay from time to time.  I had 2 "cold" and 1 "hot" spray torch.  Left over from my days as a salesman with a welding supply company.  I sold all 3 to a guy in Canada.  I had to buy them from the company, so I could demonstrate them.  When I left the outfit, they were mine.  NEVER used the cold spray torches in my business, but did the hot maybe 2 times in 20 years. Attached Images
Reply:Another "hot" spray outfit by ESAB.  Powders can be bought for different applications.  From a simple mild steel, to SS, to cast iron, to wear facing. Attached Images
Reply:Would have been perfect for the furrowing knives on the bean planting machinery I just worked on.  Pre-heat and hardfacing combined in one process.  Might have worked really well on that high carbon steel.Thanks for the great project post.  Will have to shop around for the hardware and find out how expensive it is.Benson's Mobile Welding - Dayton, OH metro area - AWS Certified Welding Inspector
Reply:Originally Posted by AcemanI hope you keep posting, it's interesting seeing the repairs you make.  Nice job.
Reply:I have a brand new Eutectic O/A spray setup i will sell if anyone is interested give me a yell....Bob  [email protected] WrightSalem, Ohio  Birthplace of the Silver & Deming Drillhttp://groups.yahoo.com/group/southbend10k/http://groups.yahoo.com/group/sawking/1999 Miller MM185 w/ Miller 185 Spoolmate spoolgun
Reply:Castweld you need to show some more of your work. I'm amazed at the results you got and I am interested in how that OA setup works. This is what I love about these forums, so much info and good people that take the time to show you what they can do. Keep it up.Cheers
Reply:Its been awhile since I've been here .. work, work and more work plus taking care of family and my terminally-ill father so I'm playing catch up here.Castweld, that is an interesting process. Is there a video out there on the web showing this? Your pics really stood out in showing what can be done to cast. Keep up the good work!