doubleboost
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- Messages
- 3,718
- Location
- Newcastle upon Tyne England
thats what i was thinking!!As bad as it is, it looks like you are making good progress.
As Dan said, it could have absorbed all kinds of ****e (or ***t in the US), as it was quite common for cast alu to have areas of porosity or trapped gas bubbles, especially if it was cast in a way that cooled the molten alu too quickly to allow all gas to escape. If you could identify and match the alloy, that might help. I'm guessing that it was either sand cast, or possibly cast in a permanent mold. I've welded sand-cast aluminium maybe half a dozen times, but in those cases it worked OK with 4043 filler rod.Some odd metals in the alloy maybe? What would they have used 100yr ago? Or just a century of ****e soaked in!?!
That would be my guess as well. It looks somewhat similar to one that I just overhauled and posted HERE yesterday. Fortunately, there were no breaks to deal with in my cast-iron gearbox.Tractor steering box?
This alloy used in "Sentinel steam waggons" is prone to corrosion .
I have been told it has magnesium in it .
Without doubt the most nasty stuff i have had to repair.
As soon as you light up you get black soot and crap bubbling out just turns to powder .
Take it Eurocarparts aren't stocking them then?Sentinel steam wagon steering box..
Not really the idea though is it?cant u find a good one....?
steering box on my 30's truck was comp junk inside.....sky high prices for metal spraying and grinding/machineing back to shape....no idea how long before it was junk again......
so in the end fitted a steering box from Toyota Hi-Lux....fittings were fairly close
plus I got power steering......
so a 17 point turn wern't so bad.....no regrets......plus side, unless u know what to look for in the cab and thru the wing hole u really cant tell.....