Well, BUGGER!
No, I haven't broken any. Several have been very tight to start, but an hour or so after squirting with what I read as being the most effective penetrating spray, they have all come loose... so far. (50/50 acetone & ATF:
https://www.jalopyjournal.com/forum/...-bolts.773380/ )
Quote:
Recently an article was passed along to me from Machinist Workshop Magazine.
They tested some commercially available penetrating oils on a group of nuts & bolts they had scientifically rusted to a uniform degree in a salt water solution.
The fasteners were treated with a variety of commercially available penetrants and the measured torque required to loosen them was recorded.
The break out torque required for:
Nothing = 516 ft. lbs.
WD-40 = 238 ft. lbs.
PB Blaster = 214 ft. lbs.
Liquid Wrench = 127 ft. lbs.
Kano Kroil = 106 ft. lbs.
50/50 blend of ATF and Acetone = 50 ft. lbs. |
Except for the one at the very front on the right. I couldn't get the socket to sit on it properly by feel and it was dark so I couldn't see well. After a couple of attempts to get onto it, I got a torch. It looked a bit strange at first, then I realised why... It has no bolt head on it!
Looks like it snapped off some time after assembly as the top is as rusty as the rest of the area...
Over torqued during assembly, maybe?
edit: Aaaaaand the one I was most dreading, very back on the left side, is the same as the front one on the right. Just threads, no bolt head. Couldn't see it until I got the heat shield off, the bottom stud that secures it, BTW, did snap. It was turning, a little, a little more, SNAP. Not a bit deal, though. Don't need that one afterwards.
) It was smoking quite a lot, but that would be due to either the penetrant cooking off or the high temp silicone that I used to hold the gasket in place & help seal it getting roasted. I'll see soon enough.
