Product sheet

Key features

  • Fully non-electric operation
  • Portable and field-ready
  • Built for demanding service conditions
  • Covers stationary, marine, railway and aero engines

SKU MIRBB-XJ/MT

MIRA BB-XJ and MT Series – Engine Refacing Tools Without Electrical Power

The BB-XJ and MT series are purpose-built tools for engine servicing that operate entirely without electrical power. They are portable and designed to withstand demanding service conditions. The range covers stationary engines, marine engines, railway engines and aero engines. Original OEM engine block specifications are required when ordering. Individual pricing available on request.

Power source
No electrical power required
Portability
Portable
Application areas
Stationary engines, marine engines, railway engines, aero engines
Requirements
Original OEM engine block specifications required
Price
Individual price on request
Brand
Mira

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Accessories

MIRA BB-86 Counterbore Unit for recutting diesel sleeve counterbores

SKU MIRBB-86

MIRA BB-86 Counterbore Unit for recutting diesel sleeve counterbores

The BB-86 is a portable and easy-to-operate tool for recutting diesel sleeve counterbores in engine blocks. To ensure a proper seal between the engine block and wet liners, the counterbore seat must be refaced during engine overhaul or in the event of leaks. The unit centres automatically on the engine block and is secured by a strong electromagnet, ensuring that the refaced counterbore seats are automatically parallel to the sealing surface. The operation can be performed on installed or removed engine blocks, as well as on built-in underfloor engines. The BB-86 is available in three sizes based on inside magnet diameter: Mini (154 mm), Standard (170 mm), and Giant (198 mm), plus an Extension variant for depths up to 200 mm. Each unit is supplied complete with a turning handle, service tooling, instruction manual, and a wooden storage box. A wide range of MIRA cutting tools (MB85–MB139) covering bore diameters from 73 mm to 220 mm are available for use with the unit.

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MIRA Formtools and Pilots

SKU MIRmira-formtools-and-pilots

MIRA Formtools and Pilots

MIRA offers a wide range of standard formtools in various shapes, with seat widths from 0.5–8.0 mm and seat angles of 45°, 30° and 20°. The tools are available in two qualities – "normal" and "X" for extremely hard valve seats – and with 4 different holder types. Custom special formtools can also be produced from customer drawings. The pilots ensure precise guidance in the valve guide and are available in various diameters. They are compatible with VG, VGX-21 and CENTRONIC machines. For smaller valve guide diameters, FDM Pilots and the sintered carbide version FDMH are available (FDMH only on request).

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