Sodo
Elite Member
- Joined
- Apr 21, 2012
- Messages
- 3,219
- Location
- Cascade Mtns of WA state
- Tractor
- Kubota B-series & Mini Excavator
Lots of members (I think) are trying to decide whether to get a MIG or a stick-welder. Or would like to see examples of tasks that can be accomplished with the MIG they have. Here's an example (,,,,,,way on the thin end ! ) of a repair that can be done with a MIG.
Today a freind asked if I could fix the exhaust stack on a dozer. I said yes. How difficult could it be? Well I had NO idea the metal on this beast would be so thin. It must be 22ga (1/32 inch). And rusty too, so even thinner than 22ga in many areas. It was not an easy weld. Wherever it was rusty was constantly filling holes, and where I had full thickness (22ga) it wasn't really easy.
Heres some pics.
The rusted out part is a cone reducer (from 5" to 4"). This stuff was underneath a wrap of coffee cans and pipe clamps. When I said I'd fix it I didn't know what was under there.
Decided to proceed. At this point, seeing how rusty and run-out this stack is, I'm not concerned how it looks. Just want to get the stack on, and exhaust away from the operator (at least for awhile). Also hoping he'll let me use the dozer! If the friend wants to bring the correct materials such as an actual reducer, I'll weld that in for him.
Luckily this exh stack is more like a "guide" attached to the "hood". It just sets over the manifold and guides the exhaust up and away. Its not a sealed exhaust pipe. I'm hoping the exhaust velocity actually sucks air into those holes rather than letting exhaust out. I didn't start the engine, just barely had time to weld and RUN!
Today a freind asked if I could fix the exhaust stack on a dozer. I said yes. How difficult could it be? Well I had NO idea the metal on this beast would be so thin. It must be 22ga (1/32 inch). And rusty too, so even thinner than 22ga in many areas. It was not an easy weld. Wherever it was rusty was constantly filling holes, and where I had full thickness (22ga) it wasn't really easy.
Heres some pics.
The rusted out part is a cone reducer (from 5" to 4"). This stuff was underneath a wrap of coffee cans and pipe clamps. When I said I'd fix it I didn't know what was under there.
Decided to proceed. At this point, seeing how rusty and run-out this stack is, I'm not concerned how it looks. Just want to get the stack on, and exhaust away from the operator (at least for awhile). Also hoping he'll let me use the dozer! If the friend wants to bring the correct materials such as an actual reducer, I'll weld that in for him.
Luckily this exh stack is more like a "guide" attached to the "hood". It just sets over the manifold and guides the exhaust up and away. Its not a sealed exhaust pipe. I'm hoping the exhaust velocity actually sucks air into those holes rather than letting exhaust out. I didn't start the engine, just barely had time to weld and RUN!
Attachments
Last edited: