RA Power Solutions successfully carried out the in-situ crankshaft grinding of a MAK-3 8CM32C engine in Burkina Faso, West Africa. The job involved precision grinding and restoration of the crankshaft, which was undertaken using advanced onsite crankshaft grinding equipment.
RA Power Solutions is a leading specialist in in-situ crankshaft grinding and repair, with extensive experience in repairing crankpins and main journals of both small- and large-diameter crankshafts. With over 47 years of experience, the company has successfully completed crankshaft repair projects for marine engines, power plants, and industrial diesel engines across the world.
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The major details of the crankshaft of the MAK-3 8CM32C engine are as follows:
| S. No | Crankpin Details | |
| 1 | Engine Make | MAK-3 |
| 2 | Engine Model | 8CM32C |
| 3 | Crankpin Diameter Standard | 280.00 MM |
| 4 | Crankpin Bearing Width | 125.00 MM |
| 5 | Grinding of Crankpin Number | #01, #02, #03, #04, #05, #06, #07, #08 |
| 6 | Place of Execution of Grinding of Crankpin | Burkina Faso, West Africa |
| 7 | Name of Shipping Company | Reputed Company from Burkina Faso, West Africa |
| 8 | Date Of Execution | 20th August to 4th September 2026 |
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i) Initial Inspection of the MAK 8CM32C Crankshaft
Due to the repeated failure of the bearings, the client decided to have the crankshaft audited for all major parameters. RA Power Solutions deputed two (2) technicians, along with an onsite crankshaft grinding machine, from New Delhi to Burkina Faso. During the initial inspection, the following parameters were checked and observed.
a) Dimensional inspection of the crankpins was carried out, and excessive ovality was observed in all the crankpins.
The readings for all the crankpins are given below:
| SIZE OF CR PINS BEFORE REPAIR | |||||||||
| A | Aa | C | Cc | B | Bb | Min | STD | Ovality | |
| CR-1 | 279.83 | 279.84 | 279.84 | 279.82 | 279.85 | 279.87 | 279.82 | 280.00 | 0.18 mm |
| CR-2 | 279.81 | 279.83 | 279.84 | 279.85 | 279.84 | 279.85 | 279.81 | 280.00 | 0.19 mm |
| CR-3 | 279.91 | 279.87 | 279.85 | 279.83 | 279.86 | 279.88 | 279.83 | 280.00 | 0.17 mm |
| CR-4 | 279.89 | 279.86 | 279.85 | 279.83 | 279.86 | 279.88 | 279.83 | 280.00 | 0.17 mm |
| CR-5 | 279.84 | 279.85 | 279.83 | 279.86 | 279.88 | 279.90 | 279.83 | 280.00 | 0.17 mm |
| CR-6 | 279.82 | 279.84 | 279.85 | 279.86 | 279.88 | 279.89 | 279.82 | 280.00 | 0.18 mm |
| CR-7 | 276.85 | 276.87 | 276.86 | 276.87 | 276.87 | 276.88 | 276.85 | 277.00 | 0.15 mm |
| CR-8 | 279.85 | 279.89 | 279.84 | 279.83 | 279.82 | 279.85 | 279.82 | 280.00 | 0.18 mm |
b) As per our protocol, all the crankpins were checked for hardness using a portable hardness tester and were found to be within limits.
c) MPI was also carried out to check for cracks, and no abnormality was observed.
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ii) In-Situ Grinding of All Eight Crankpins | MAK 8CM32C Engine in Burkina Faso, West Africa
After completion of the inspection, all eight (8) crankpins were ground onsite by RA Power Solutions’ technicians using a portable in-situ crankshaft grinding machine.
The grinding operation was carried out with strict control over dimensional accuracy. A step size and tolerance of 0.02/0.03 mm were maintained during the grinding process to achieve the required final dimensions.
The entire repair was completed onsite without removing the crankshaft from the engine, thereby significantly reducing dismantling requirements and repair time.
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RA Power Solutions | Global Specialists in Onsite Crankshaft Grinding and Repair
Our technicians are available to travel worldwide on short notice. Additionally, several of our technicians hold valid US visas, enabling them to travel to South America, the Caribbean, and other destinations as needed.