Thanks for all the replies and suggestions - this is a great forum. Didnt get out today to give it a try with the kids and weather but gonna give it a crack tomorrow
Air chisel on the corners of the fitting. It will come loose.
I hadn't though of that - no access to air tho so I might try my milwaukee SDS drill with a long chisel as is ths closes thing I have to an air chisel
Fitting connections like that pretty much require whacking the flats of the fitting nut with a hammer. Peening the nut like that disturbs the metal and makes it expand just a bit enough to get the fitting loose. But in your case, where it's located, not likely you're going to be able to get some hammer blows on that fitting nut. Possibly use an air chisel with a really dull chisel tip, even grind it flat on the end, and beat on that nut flats you can get to with the chisel tip.
I did try giving it a whack with a few extensions and a 3lb sledge but you're right with funky angle it was nearly impossible to get any power behind it
Get a wrench on it and use a long bar to pry against the wrench.
Tried a host of different wrenchs and the only ones that fit have no where near enough leverage with the oil pan and frame in the way
Two thoughts I have….. get a pair of smaller Vice grips and clamp down on it. Maybe that will give you better leverage.
Idea 2, cut the hose off as far as you can go and put a deep well socket over the nut. Maybe that will work?
I tried smaller vice grip as the bigger ones were too large to get on nut and the smaller ones didnt have the jaw size
Similar issue with the hose because its steel braided or steel inlayed(?) its very difficult to cut due to the location. I wouldnt be able to cut the hose in the location needed to get a deep well socket on
You're gonna need two line wrenches to get that off. A line wrench barely fits around the line part because it goes around five corners of a hex nut, two of those together will let you apply force with both hands squeezing and not twist the steel line.
Hammering the flats like Willie described will help. Even if you only reach one or two, put some steel behind the hex nut and smack with the ball end of a ball peen hammer.
Or like cosmarr said, cut the hose and use a socket or box end wrench on that part, and a box end wrench on the bigger hex.
I've got a set of line wrenches but no luck getting them on fitting there simply isnt enough room especially on the smaller nut
This is one of those times where you turn this over to a son-in-law/ son/ grandson in trade for beer/candy/ favor.
I am the son haha my little guy is only 2 so while his hands would be perfect for that tight area I dont quite think his grip strength is there yet...
As a last resort can you remove the hard line and hose together ?
I followed the path of the hard line..I think they built this backhoe around the hard line its almost comical the amount of things that would need removal in order to get the very large and multi bent hard line out
Notice the OSHA approved tinfoil heat barrier, looks like some sort of heating device was used, not enough I suspect.
You're exactly right - I put a decent amount of heat up there but not enough. I've since bent a piece of sheet metal as a deflector between that nut and the soft line above it to really throw some heat at it. I'm hoping between the sheet metal, air pocket and tin foil I wont cook the other soft line
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