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Here’s some pics of a Mesabi shell-and-tube oil cooler heat exchanger we rebuilt. This oil cooler is for a Komatsu WA1200 loader. Each individual tube was removed for ultrasonic cleaning & reconditioning. All the rubber grommet seals were removed from the tube sheets so the shell-and-tube could be thoroughly cleaned inside & out. After final [...]
Got Mesabi? Here's some pics of some Mesabi Radiators rebuild projects we have going on. There's a Caterpillar 793F haul truck radiator, a Komatsu 830E AC haul truck radiator & a LeTourneau L1850 Loader Radiator with the hydraulic oil cooler circuit along with it. The 793F radiator has right at a thousand tubes, the 830E [...]
Here’s some pics of a Caterpillar 16M Grader Circle & Drawbar with the Moldboard we delivered back to one of our mining customers after we gave it a complete repair & overhaul. We completely disassembled the circle & drawbar assembly & repaired all the bores & machined all the surfaces. Several cracks were found, prepped [...]
Here's some pics of a copper & brass radiator core we're running the headers on. The radiator core is for a Caterpillar diesel genset unit. When we overhaul a radiator we run the headers which involves melting all the solder off the header plates where the tubes go through. Once the tubes & header plates [...]
Here's some pics of a Caterpillar & Komatsu haul truck radiators being pressure tested in our test tank. The Cat Radiator is a 793C & the Komatsu Radiator is an 830E. The Komatsu Radiator is a Mesabi which has just under fourteen hundred individual copper tubes. Both radiators will get final detailed & painted after [...]
Here's some bushings we custom machined. These bushings are used on Caterpillar haul trucks. They are referred to as dog bone bushings. We machine these bushings out of a special grade of steel tubing to provide the proper hardness & specs for a long service life. Motor Mission Machine & Radiator 5435 Desert Point Dr. [...]
Here's some before & after pics as well as some progress pics of a radiator recore we did. The radiator is off of a 1980 Kenworth semi truck. This radiator has aluminum inlet & outlet tanks as well as aluminum side braces. The original radiator core was leaking in several tubes & heavily corroded internally. [...]
Here's some pics of the International, or Navistar, MaxxForce 13 diesel cylinder head that came in for rebuilding. One of the first inspection checks we perform is to magnaflux a cylinder head for cracks. If no cracks are detected during magnafluxing then the head moves on to pressure testing. With this particular head we found [...]
Here's some pics & one before of a 379 Peterbilt class 8 semi truck radiator we recored. The original core was replaced with a new heavy duty high efficiency copper & brass core. The new core will provide better cooling when the summer heat comes back around. Motor Mission Machine & Radiator 5435 Desert Point [...]
Here's a couple of Mitsubishi diesel cylinder heads we reconditioned. They're off of a Caterpillar forklift which had a blown head gasket. The heads were cleaned, magnafluxed for cracks, pressure tested for leaks & fully inspected before we qualified them for the valve job & surfacing. After assembly we vacuum test each individual intake & [...]
