Name of project: : LINE BORING ENGINE
Engine: 8NVD28
Place: X46 Shipyard
Date: 04th -08th May 2024
On 25th Apr 2024, MTB Engineering Service Co., ltd received order from X46 Shipyard that main bearings of engine 8NVD28 were not in center line.
Problem with crank shaft deflection and oil clearance not in allowance range after they renew main bearing.
And all bearings were damaged after short running time.
X46 need remachining and make center line for 08 main bearings with deviation not over 0.02mm and sharpness at least = ÑÑÑ.
After job confirmation, our engineers quick prepare stagging, foundation, line boring tool to carry the job with bellow scope:
- Carefully check and measure diameter and deviation of bearings, engine block
- Make special tool for line boring
- Line boring on site for 08 bearings under supervised of X46
- Final polishing and measuring all data in good range
- X46 rechecked with color all in good.
- Engine Block, bearings must be in center line. If any deviation, will much affect on crank shaft and engine, ship owner will lost much money.
- Please contact us in case you have deviation in engine block, main bearings.
Please see some att picture of our job done: