welding frame rails

[Wherlwind]

Any problems with cutting out the rusty inner rails and welding in new steel. The rears on both my 45 and 60 are rusted through. The 45 is easy to do by taking the box off. The 60 is a bit more difficult to get to but seems much easier than getting another frame and having to re&re everything. Most of the frames here in southern British Columbia seem to be rusted out in the same places so I don't know how easy it would be to find a good frame. Any ideas?
Pete

 

[Mace]

I see no reason for not just replacing a section of the inner channel. It should be easy

It also would not be hrad to replace the offending piece with box tubing of appropriate size..

 

[dylan]

i'm from the kootenays and have repaired both my fj40 and my old fj45s frame with no problems

 

[lowtideride]

what the hell's a "kootenay"? by the way i wheel enough to *need* lockers, but i don't have them.

 

[dylan]

it's a B.C thing, you wouldn't understand. where did this need for lockers come from? i don't know what you're talking about.

 

[72cruiser]

sup y'all,

been a long time since i been on the board....

i am quickly approaching the same cunundrum. i would like to switch everything over to another frame, but fear that it would be a little much for me timewise (my 40 is my dd).

what all would need to go into replacing the framerails (precautions/preferences/methodology)?
mine are bent up horribly bad in the rear (up to the rear x-member).

y'all have a good one,
malphrus

 

[ken_79-fj40]

I replaced the inner channel on both sides of my 40 with 3/16 steel from about a foot and a half ahead of the tubular crossmember to about 6 inches behind it. I cut all the old metal out, and welded in one inch wide flat stock top and bottom inside the framerail, tacking it though the rivet holes to hold it in place. I welded the inside edge of it to the existing outer framerail. Then I welded 3/16 plate all the way down to box in the inside , I notched out round openings in the plate,and welded around the tubular crossmember. I just did a little on one side, then went to the next side, just to keep the heat down. I didn't get any warpage than I could tell. For me it was easy because I was doing a frame off, but I could have done the same with the tranny out.

 

[Radd Cruisers]

I replaced the inner channel on both sides of my 40 with 3/16 steel from about a foot and a half ahead of the tubular crossmember to about 6 inches behind it. I cut all the old metal out, and welded in one inch wide flat stock top and bottom inside the framerail, tacking it though the rivet holes to hold it in place. I welded the inside edge of it to the existing outer framerail. Then I welded 3/16 plate all the way down to box in the inside , I notched out round openings in the plate,and welded around the tubular crossmember. I just did a little on one side, then went to the next side, just to keep the heat down. I didn't get any warpage than I could tell. For me it was easy because I was doing a frame off, but I could have done the same with the tranny out.

I have stoped doing what ken 79 did and that is open a hole and weld out to get a good grip, you would have to do this correctly to get good pentration and for newbies on a welder it can be taugh.

We make templates and cut out all the rust out firstly, then we cut out new plate and go over top of the existing good frame. Top and bottom make for good weld prep and good access also.

You should have enough material left on the frame to do this otherwise I would suggest cutting out the rear section of the frame and getting a clean near rust free frame. Plating with football shape plates to eliminate verticle welds seems to be a favourite.

 

[lowtideride]

it's a B.C thing, you wouldn't understand. where did this need for lockers come from? i don't know what you're talking about.

HAHA ya got me my buddy was on my computer...yell at him... I think he was thinking he was posting under his name REDRUSTBUCKET...

 

[72cruiser]

otherwise I would suggest cutting out the rear section of the frame and getting a clean near rust free frame. Plating with football shape plates to eliminate verticle welds seems to be a favourite.

so are you saying that i can cut out the rear of another, much cleaner/straighter frame and weld it in there?



malphrus

 

[Mace]

Yes that would work fine.

 

[72cruiser]

good deal,

now that i am again motivated to work on the ol piece, the project list is startin to get long again... ha ha

malphrus

i'll probably post back up with some other questions about this process in a couple weeks (hopefully)