Can anyone tell me where I could get a cracked welded on my gear box that would not cost me an arm and leg lol I live in Russellville Ar
Need a Crack welded
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85Hokie
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BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
Can you upload a picture of the crack - reason I ask, depending on where it is, there may be an alternative route to fixing it, depending on where it is located.
On the flip side - having it welded should not be a big deal - UNLESS you have to have them come to YOU.
I will upload a pic in a little while its on the back side on the right rear axle were it bolts to the main body easy to get too
dandeman
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BX2230, LA211 FEL, RCK60B Mower, GCK60BX Bagger; Ford 4000, bush hog, blade, etc
Cast iron or machined aluminum material?
Cast iron can be tricky... shops that specialize in welding cast iron typically require signing a statement accepting the fact that the part may be destroyed in the process of welding, due to many different grades of cast iron material, some subject to further cracking from the heat of welding. Using preheat and post controlled cooling rate oven can reduce the risk.
http://www.lincolnelectric.com/en-us/support/welding-how-to/Pages/welding-cast-iron-detail.aspx
Cast iron can be tricky... shops that specialize in welding cast iron typically require signing a statement accepting the fact that the part may be destroyed in the process of welding, due to many different grades of cast iron material, some subject to further cracking from the heat of welding. Using preheat and post controlled cooling rate oven can reduce the risk.
http://www.lincolnelectric.com/en-us/support/welding-how-to/Pages/welding-cast-iron-detail.aspx
85Hokie
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BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
You might get lucky and the casting might be cast steel which is easy to weld. It's hard to tell the difference but one of my three point lift arms on my Yanmar broke and the welder discovered it was cast steel while repairing it, had I known I could have easily welded it myself.
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Early in my career I spent several years working with weld repair of cast iron. What I found was 1 out of 100 shops that claimed to weld structural cast iron actually could. The rest only cover the crack soon to return after the repair. Your best hope is to find a good shop that specializes in repair of heavy duty diesel cylinder heads. I don't know of any in Arkansas but there were a couple in Greenville Mississippi. This is a major repair stop for barges operating on the Mississippi river.
The OK shops use a nickel welding rod for the repair. The best shops have rods custom cast to match the iron composition of the head. One reason why shops specialize in a particular brand like Cummins, Cat, or whatever.
Walk away from any shop that does not use a pre-heat and a post head to cool down because they are imposters. This can not be welded in place.
I would seriously recommend finding a replacement part or assembly. In the long run will most likely be cheaper.
The OK shops use a nickel welding rod for the repair. The best shops have rods custom cast to match the iron composition of the head. One reason why shops specialize in a particular brand like Cummins, Cat, or whatever.
Walk away from any shop that does not use a pre-heat and a post head to cool down because they are imposters. This can not be welded in place.
I would seriously recommend finding a replacement part or assembly. In the long run will most likely be cheaper.
There are alternatives to welding worth considering.
LOC-N-STITCH
Jay Leno, with his extensive collection of vehicles, uses and endorses this product.
https://www.youtube.com/watch?v=Pq0wfU4ZaKk
It was also used on the Capital Building Dome in Washington.
https://www.youtube.com/watch?v=syZQ3XBspIo
When welding any crack, knowledgeable people drill holes at either end of the visible crack because they know the microscopic defects making the crack grow need to be cut out.
To visualize this:
Tear two short rips in a piece of paper. On one rip, i.e. crack, use a hole punch to round the end of the rip.
Now pull on the paper trying to get each rip to grow. You will find the rip with the round hole at the end will be much more resistant to progressing.
Do you know what caused the crack to form?
Dave
LOC-N-STITCH
Jay Leno, with his extensive collection of vehicles, uses and endorses this product.
https://www.youtube.com/watch?v=Pq0wfU4ZaKk
It was also used on the Capital Building Dome in Washington.
https://www.youtube.com/watch?v=syZQ3XBspIo
When welding any crack, knowledgeable people drill holes at either end of the visible crack because they know the microscopic defects making the crack grow need to be cut out.
To visualize this:
Tear two short rips in a piece of paper. On one rip, i.e. crack, use a hole punch to round the end of the rip.
Now pull on the paper trying to get each rip to grow. You will find the rip with the round hole at the end will be much more resistant to progressing.
Do you know what caused the crack to form?
Dave
Thanks that is some Great info now I will know when talking to a weld shop what to ask Thanks again
Find the oldest welding shop in the area. Either take the tractor to them, or a good picture on your phone and ask for their advise. Those guys like to solve unsolvable problems. They might decide to braze it, who knows.
Start out the conversation like this. "You probably won't be able to fix this but I know you have a lot of experience and can give me some good ideas."
Start out the conversation like this. "You probably won't be able to fix this but I know you have a lot of experience and can give me some good ideas."
dandeman
Member
Equipment
BX2230, LA211 FEL, RCK60B Mower, GCK60BX Bagger; Ford 4000, bush hog, blade, etc
ditto on every point mentioned above....
Had a cast iron cylinder head with cracks under the valve seats repaired by a shop that specialized in heavy duty diesel cylinder heads...
"When welding any crack, knowledgeable people drill holes at either end of the visible crack because they know the microscopic defects making the crack grow need to be cut out." -Dave_Eng
Saying another way: once a crack starts in cast iron it will never stop propagating. Most repairs will only slow it down. To actually repair a crack it must be completely ground out, all the way through the wall. The void is then filled in with cast rod.
Stitching does work in certain situations. The end of crack is drilled out with a taper drill bit and a matching plug is driven in. Unfortunately, stitching is not as structural as a good weld repair.
Saying another way: once a crack starts in cast iron it will never stop propagating. Most repairs will only slow it down. To actually repair a crack it must be completely ground out, all the way through the wall. The void is then filled in with cast rod.
Stitching does work in certain situations. The end of crack is drilled out with a taper drill bit and a matching plug is driven in. Unfortunately, stitching is not as structural as a good weld repair.