Repair of MAN B&W Model 5L 16-24 by Using Onsite Crankshaft Grinding Machine

MAN Engine Model no. 5L 16/24 is a very common installation on vessels and the engine is used as Generator. The Crank Pin diameter of MAN Engine Model no. 5L 16/24 is only 130mm and the bearing width is 56 mm. In other words, it is about 2 inches 

This makes the onsite crankshaft repair very difficult due to limited space in between the two webs. Most onsite crankshaft repair companies based in Europe don’t have the equipment and the technology to undertake grinding/ repair of crankpin of MAN Engine Model no 5L 16/24. The repair companies always suggest to remove it from the engine block and send it to workshop for crank pin grinding or reject the crankshaft.

We successfully executed the repair of the crankshaft of MAN Engine Model no. 5L 16/24. Details are as mentioned below:

S. NO Crankshaft Details 
1Engine Make MAN B&W
2Engine Model 5L 16/24
3Crank pin Diameter Standard 130 mm
4Crankpin Bearing Width 56 mm
5Place of execution of crankshaft repair Port of Castellon Spain

Details of Crankshaft repair job executed by RA Power Solutions technicians at a port of Castellon Spain.

  • The damaged crankpin was checked for taper & ovality and it was observed 0.49 mm.  
  • Deep bearing line marks were observed. 
  • All other parameters like hardness and crack detection by MPI were checked and no abnormality was found. 
  • The crankpin was ground to an undersize of 1.0mm.           
Damage of crankpin
Damage of crankpin
Radius fillet damaged
Radius fillet damaged

Supply of Undersize Bearing for MAN Engine Model No. 5L 16/24

It is obvious that whenever grinding is undertaken there is requirement of undersize bearing. In this case of MAN Engine Model no. 5L 16/24, RA Power Solutions arranged and supplied 1.0 mm undersize crankpin bearing to the client.

We maintain a large stock of standard & undersize bearings of crankpin & main journal of popular make & model of engines like Yanmar, Daihatsu, MAK and MAN B&W, etc. 

The Engine was commissioned in presence of our technicians and performance was found to be satisfactory. 

Hardness check of crankpin MAN B&W Model 5L 16/24
Hardness check of crankpin MAN B&W Model 5L 16/24
Engine of CME-MAN B&W 5L 16/24 Crankpin grinding
Engine of CME-MAN B&W 5L 16/24 Crankpin grinding
Crack detection by MPI
Crack detection by MPI
MAN B&W 5L 16/24 Crankpin under grinding progress
MAN B&W 5L 16/24 Crankpin under grinding progress
Crankpin after successful repair
Crankpin after successful repair
Crankpin after grinding & polishing
Crankpin after grinding & polishing

For more details on the crank pin grinding machine please email us at info@rapowersolutions.com, or rajshahani@rapowersolutions.com, Call at +91 9582647131,+91 9810012383.

Summary
Repair of MAN B&W Model 5L 16-24 by Using Onsite Crankshaft Grinding Machine
Article Name
Repair of MAN B&W Model 5L 16-24 by Using Onsite Crankshaft Grinding Machine
Author
Publisher Name
RA Power Solutions
Publisher Logo

Leave a Reply

Your email address will not be published. Required fields are marked *