aluminium cylinder head repair

[@arttrombley7385]

Simply marvelous work my Brother, a work of art indeed.

[@TheOzzyNut]

crikey that was 1 rooted head. good to see the work on it, well done

[@tonyd7342]

Beautiful welds! I'm wondering your basic mix. Heli, argon... and percentage. They are nice fillet as well. I'm wondering if the hole filling was for show as in the first weld? Most people would use a filler metal in that scenario. That's a lot of dragging of the aluminum stick lol. Beautiful work, but tedious. Btw, what tungstens are you using, widths and types?

[@marshan162]

Hi spelunkerd, In my opinoin it would not be possible to MIG weld successfully, for the casting was so porous and full of impurities. Using the TIG 'arc' , it was possible to stir the weld pool with the filler rod to bring the impurities to the surface then using cutters remove the slag before the next layer was added . Maybe after buttering you could MIG weld to build up quickly, but using a filler wire with a high silicon content (soft) would probably cause more problems....

[@11guyinthechair]

wow, look how huge the combustion chambers are, you could probably run this thing on white spirit. why was it so badly damaged?

[@thdmtr]

@turbotrana if try to do it in one hit, the molten aluminum wont support itself because the hole is too big.

[@marshan162]

Worth it, for the engine remains original

[@clintoncooper1532]

I think subaru picked up their casting technique. Broke the cylinder head in 2 places on a 2005 outback exposed to salt water conditions in the northeast for 4 winters.

[@vasiliiterkin4421]

Hello. What was the maximum current for this cylinder head? What kind of rod (additive) was used?

[@marshan162]

All of the work was done with T.I.G

[@kennethramey1974]

Great video. Your work is extraordinary, and your experience is obvious. I have an aluminum head that has a damaged exhaust bolt hole. I was planning on melting some aluminum (cans or junk aluminum parts) pouring it in the hole and then drilling and taping or put a steel bolt in the molten aluminum and remove after cooling. will I need to preheat the head? any tips or suggestions would be very appreciated.

[@ThePataks]

not sure that melted cans would do it - there are different aluminium alloys that are stronger than the stuff cans are made from and pouring molten aly in a hole will not melt the surrounding metal and there wont be a decent bond made.

[@mr.createandfix5504]

Use a helicoil

[@arttrombley7385]

Cole, I realize that this comment is old, but maybe someone today has the same problem so I'll comment on too. I also would suggest a Stainless Steel Helicoil to repair a simple damaged thread situation. What do think of this fellows work, I think it's beautifully done, a rear work of art.

[@mr.createandfix5504]

Definitely looks good. I wonder how long the head will last on the motor after so much heat has been applied. Im sure there was no replacement available making repair on this head the only choice

[@arttrombley7385]

It should last, but the head is 70 years old and quite rare, so it's definitely worth repairing.

[@turbotrana]

What argon mix do you use. I notice a very slow build up. Like how weld, grind, weld, grind. I would usually try and get it in one hit.

[@spelunkerd]

Would you get enough strength from a MIG technique, or does the TIG add more than just better accuracy?

[@ChrisLawley43]

what filler you use?

[@fluffskunk]

Such inconsistent chamber shapes in the original casting, that's a scary lack of quality control.

[@thdmtr]

i think its easier to cast a clone of that head in a356 Al