Some tig repairs

[minimutly]

Spent an hour today buiding up two repairs where the threads had come out the side due to corrosion, xj 650 jugs on the camchain tunnel.
Now sitting on my small mill to reprofile and skim down near to deck height.
I found it difficult - the puddle kept freezing, this needed all 200Amps I had, and created a temptation to hold the filler too close, with predictably messy results. Preheating and welding in short bursts helped, as did in/out fast with the filler.

 

[dobbslc]

Isn't that a 900 barrel?

 

[minimutly]

Yes, oops, did I type 650? Guess I did. 900 yics , kindly donated by an xj bikes forum member. I've yet to drill the holes and give the top a light skim, and then pack it away for when I need it, hopefully later this year.

 

[Argonman]

Pretty much mirrors my recent experience of trying to repair an old Suzuki crankcase. I can see the holes/ porosity where you have welded.

 

[minimutly]

I have noticed (tonight actually), that when you increase the cleaning action, it creates more of these little craters. Is it me imagining it?
Tonight I spent a few hours welding up a BMW K100 motorbike head so it can be fitted on 1275 mini block. More info later...

 

[Argonman]

I have noticed (tonight actually), that when you increase the cleaning action, it creates more of these little craters. Is it me imagining it?
Tonight I spent a few hours welding up a BMW K100 motorbike head so it can be fitted on 1275 mini block. More info later...

I watched a youtube video where a chap tig repairs a large cast-aluminium outboard-motor casing. He keeps the penetration to a minimum to avoid bringing crap to the surface. He does this by keeping the frequency down to about 80. Before forming his pool he goes over the weld area with the cleaning action. It seemed effective but he was very skilled. For my level of knowledge & skill there are too many variables at play. I can discover settings which seem good in one area on the workpiece but not in another. I suppose it will come together with time & experience.