Marine engine overhauling and repair are essential for maintaining the reliability, efficiency, and safe operation of propulsion and auxiliary engines. A complete overhaul involves detailed inspection of critical engine components, identification of wear or damage, necessary repairs or replacement, precision measurements, and reassembly according to the engine manufacturer's specifications.
RA Power Solutions provides complete marine engine overhauling and repair services for main propulsion engines, auxiliary engines, and land-based diesel generator sets. Our engineers and technicians have extensive experience working on marine and industrial diesel engines and can undertake scheduled overhauls as well as emergency repairs on board vessels.
Marine Diesel Engine Overhauling and Repair Services
During a marine engine overhaul, our team carries out inspection and repair of major engine components, including:
Inspection and calibration of major engine components
Repair of damaged castings using metal stitching and metal locking
Inspection of critical engine dimensions and clearances
All inspection and repair work is planned according to the manufacturer's maintenance procedures, technical specifications, and applicable dimensional tolerances.
Main and Auxiliary Marine Engine Repair
RA Power Solutions undertakes repair and overhauling of both main marine engines and auxiliary engines installed on vessels. Where required, major component repairs can be carried out simultaneously with the engine overhaul to help reduce vessel downtime.
While the engine is being dismantled and inspected, our team can undertake crankshaft inspection and grinding, bearing inspection, cylinder liner measurements, connecting rod inspection, and repair of damaged components. This approach helps avoid unnecessary delays associated with sending individual components to different repair agencies.
Crankshaft Grinding and Repair During Engine Overhaul
Crankshaft condition is one of the most important aspects of a diesel engine overhaul. Crankpins and main journals are inspected for wear, ovality, taper, surface damage, cracks, and other dimensional deviations.
Where required, in-situ crankshaft grinding and repair can be carried out without removing the crankshaft from the engine block. The journals are machined to the required undersize, followed by precision polishing to achieve the specified surface finish.
Crankshaft repairs are carried out with reference to the engine manufacturer's allowable regrinding limits, journal dimensions, fillet radius requirements, and bearing specifications.
Marine Engine Bearing Repair and Rebabbitting
As part of the engine overhaul, main bearings, crankpin bearings, connecting rod bearings, thrust bearings, and other white metal-lined bearings can be inspected and repaired.
RA Power Solutions undertakes:
Inspection of worn and damaged bearings
Removal of existing white metal where required
Bearing shell preparation
White metal/Babbitt rebabbitting
Precision machining of bearing surfaces
Dimensional inspection and clearance verification
Final quality inspection before installation
The bearing clearance and finished dimensions are checked against the applicable engine manufacturer's specifications.
Casting Repair by Metal Stitching and Metal Locking
Cracks and damage in cast iron and other engine components can sometimes be repaired without replacing the complete component. Depending on the location, extent, and nature of the damage, metal stitching and metal locking techniques can be used for the repair.
These techniques are particularly useful for repairing damaged engine blocks, cylinder heads, housings, and other cast components where conventional welding may not be suitable.
Inspection and Calibration of Marine Engine Components
Accurate measurement is an important part of every engine overhaul. Our engineers inspect and measure major components to determine their actual condition before deciding whether repair, machining, or replacement is required.
Measurements may include:
Crankshaft journal diameter
Journal ovality and taper
Bearing clearances
Cylinder liner diameter and wear
Piston and piston ring condition
Connecting rod alignment
Cylinder head condition
Component dimensions and tolerances
The inspection results are used to establish the required scope of repair and to ensure that components remain within the manufacturer's permissible limits.
Marine Diesel Engine Repair for Major Engine Manufacturers
RA Power Solutions provides repair and overhauling services for a wide range of 2-stroke and 4-stroke marine diesel engines, auxiliary engines, and stationary diesel generator engines.
Our experience includes engines manufactured by:
Wärtsilä
MAN B&W
Caterpillar
Cummins
Daihatsu
Yanmar
MAK
Pielstick
Deutz
Niigata
Bergen
ABC
Ruston
EMD
Himsen
Allen
Services can be undertaken for propulsion engines, auxiliary engines, and stationary diesel engines used in power generation and industrial applications.
On-Board Marine Engine Overhaul Services
Marine engine repairs often have to be completed within a limited vessel schedule. RA Power Solutions can deploy experienced engineers and technicians for on-board marine engine repair and overhaul work, subject to the vessel's location and project requirements.
Our team can plan the work based on the available shutdown period, required spare parts, component condition, machining requirements, and manufacturer's maintenance procedures.
Where necessary, engineers can coordinate the inspection, machining, bearing repair, dimensional checks, and final assembly so that multiple repair activities can progress during the same maintenance period.
Planned and Emergency Marine Engine Repairs
Marine engine failures can result in significant vessel downtime. For this reason, early diagnosis and accurate identification of the damaged component are important before commencing major repairs.
Our engineers first assess the available technical information, inspection findings, and component condition to determine the appropriate repair procedure. The execution team then prepares the scope of work and carries out the required repairs using suitable inspection and machining procedures.
RA Power Solutions also undertakes emergency repairs for marine engines that require rapid deployment, depending on the vessel's location and project scope.
Complete Marine Engine Overhauling Solutions
RA Power Solutions provides integrated repair services covering crankshafts, bearings, cylinder components, connecting rods, damaged castings, and other critical engine components.
By carrying out multiple repair activities as part of the same overhaul project, the need to coordinate with several independent repair agencies can be reduced. This can also help streamline the maintenance process and minimize avoidable vessel downtime.
For more information about marine diesel engine repair, marine engine overhauling, crankshaft grinding, crankshaft repair, bearing rebabbitting, and on-board engine repair services, contact RA Power Solutions with the engine make, model, component details, and available inspection information.
