ID Cast iron or cast steel? Ford 8.8 grinding and welding - MIG success!
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- čas přidán 16. 12. 2021
- Grind spark and weld testing on a Ford 8.8 rear axle housing. The internet "experts" all over can't seem to agree what the cast center section of the axle is made of. Most say cast steel, some say cast iron...but the two materials weld very differently.
My testing here and some more research from Hiltsy (they make a DIY weld Fbody Camaro torque arm mount for the 8.8) confirmed my suspicion that they are nodular iron (ductile iron).
I was able to successfully weld it with my MIG and stainless wire (thanks to its extra nickel content compared to mild wire). I did a worst-case-scenario test with no preheat or postheat and a weak design with lots of leverage against it. Bashing the 1/4 steel with a sledge just bent it, with no breakage or cracking of the weld. So I'm reasonably sure my own DIY torque arm design should work well.
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Finally a solution with results to back it up. Thanks.
I looked all over and finally found some good info from Hiltzy
Loving the project. Keep posting!
Lots more work to do... Haha
Look forward to seeing the rest of the build. I have a 92 beretta in the same shape, same water leak and trying to find something to do with it.
The water leak comes from the firewall. The best fix is to strip the factory seam sealer and redo it with 2k stuff. The drainage is a poor design, so you have to use really good sealer.
I like your idea of doing the test weld and hammer failure test. But, it might be better to just weld one side of the flat bar? And also doing less weld so that you could get it to fail and see how?
That's a good idea. Try to make it fail rather than try to make it succeed...
I do have some miles and some torture on this DIY torque arm now and it has held up beautiful.
Cool video. Aside from that I literally have that exact same 220 lincoln and that exact same welding cart lol. Both bought new in 2006 and keeps on trucking. The stupid chains for the mix gas tank are terrible. I finally ended up switching over to ratchet straps to hold the tank to the cart especially now that I have a 125 tank in there. Are you the same dude that's building the Beretta on ls one Tech?
Haha I bought mine new in 2007 so that makes sense! Good idea on the chains, I should do the same.
Beretta T56 that's me😎🤣
New video today from drag racing last week
what gas are you using with the SS wire 75/25??
Yeah 75 argon, 25 co2
Just wondering what type of lincoln mig welder you used for the project and what gauge mig wire,. .023 .030 or .035 ?
170a 220v with .030 wire
Thanks for sharing
Its most definitely cast steel!
Guess I was wrong. Sorry.
From what I can tell, yes. A welder buddy of mine thought it was steel as well, because of the color of the spark
I don't think so- besides, cast steel it quite a bit more expensive than cast iron. Why in the world would Ford choose the unessecary for stock applications non-budget friendly cast steel but then skimp out on tube size (with BS end taper) along with using anorexic 14mm u-bolts???? OP is making a video to try to cite his sources, responder's sound like Ford fan boys accepting a conclusion they want with keyboard warrior blind faith... This dude's welding approach is similar to the way a head shop would fix a cracked cast iron head...
Metal test says its cast steel with .8% carbon. By definition, carbon steel has a total carbon content of less than 2.0%. Cast iron has a carbon content of more than 2.0%. So test 8.8 sample is in fact steel, not iron. Ductile iron / nodular iron are on average 3.0% carbon, So what gives?
You do this test yourself? I wonder if they are all the same. The other source I was going by was Dirt Lifestyle testing super duty axles...
@@GEARHEADdezign What did their test results come out to?
@@blueblood76 I don't recall, but it was nodular. That was super duty axles though