MAN B&W Marine Engine Spare Parts Archives

MAN Diesel Engine Maintenance & Repair Services

MAN Diesel Engine 9L28-32

RA Power Solutions was approached by a company based in Dubai regarding a problem in crankshaft faced in MAN Diesel Generating set model no. 9L28/32.

The make, model of Engine, and crankshaft details are given below:

S. NO	Crankshaft Details
1.	Engine Make	MAN B&W
2.	Engine Model	9L28/32
3.	Crank pin Diameter Standard	230 mm
4.	Crankpin Bearing Width	98 mm
5.	Place of execution of crankshaft repair	Sailing from Port of Jebel Ali Dubai to JNPT port India(Mumbai)

Repair of MAN Engine Model no. 9L28/32 Diesel Generating set Crankshaft

RA Power Solutions deputed two technicians along with an onsite crankshaft grinding machine and technicians boarded the vessel at port of Jebel Ali Dubai. On conducting the inspection following are the main observations of the crankshaft of MAN Engine Model no. 9L28/32 diesel Generating sets.

It was observed that the crankpin no. 3 of the AE#02 was damaged. The Bearing material was embedded on the crank pin diameter. After removal of the white metal from the crankpin, the dimension inspection was done and the following was observed:
- Minimum crankpin diameter observed: 229.44 mm
- Maximum crankpin diameter observed: 229.83 mm
The above readings were observed against the standard diameter of 230.00 mm.
The radius fillet and lubricating oil hole profiles were found acceptable with no damage.
Deep Bearings line marks were observed on the remaining 8 numbers of crankpins.
All the crankpins were subject to hardness test and crack check by MPI method and no abnormality was observed.
All other parameters were observed within limits.

Successful Crankshaft Repair of MAN Engine Model no. 9L28/32

The grinding of crankpin no. 3 was initially undertaken to the undersize of 1.0 mm maintaining the crankpin diameter of 229.00 mm. Since the Bearing line marks were still visible it was decided to grind further. The final size maintained after grinding and polishing was 228.50 mm which is 1.5 mm undersize.
Considering the rough surface finish and bearing line marks all the remaining crankpins were polished while using the state of art crankshaft grinding & polishing machine using the latest polishing media.
The surface finish of less than 0.20 RA value was maintained.
The ship had the 1.5 mm undersize bearing available which was assembled and the engine was put on load.

RA Power Solutions having more than 41 years of experience in extending crankshaft grinding, metal stitching, rebabbitting of bearing, and all the services related to engine repair. We undertake onsite grinding of crankshaft up to 700 mm diameter.

The main feature of our crankshaft grinding machine is that the grinding & polishing of the crankshaft can be undertaken even while sailing of the vessel. There is no requirement of holding the vessel at the port or at Anchorage.

**Crack Check of MAN Engine Model no. 9L28/32**

For more details regarding crankshaft grinding, rebabbitting of bearing, and engine block repair, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

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
1	Engine Make	MAN B&W
2	Engine Model	5L 16/24
3	Crank pin Diameter Standard	130 mm
4	Crankpin Bearing Width	56 mm
5	Place 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.

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**

**Engine of CME-MAN B&W 5L 16/24 Crankpin grinding**

**MAN B&W 5L 16/24 Crankpin under grinding progress**

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.

MAN B&W Marine Engine Spare Parts – SPARE PARTS OF MAN B & W Marine Engine

RA Power Solutions have been serving the shipping companies, diesel power plants and engines installed in heavy industries all over the world for the last 40 years.

We have realized that for the satisfactory performance of the engines, it is important that their parts used are genuine, priced reasonable and are of OEMs standard.

We supply spare parts of MAN auxiliary and main engines through our principals based overseas.

For MAN B&W spare parts supplied by us, RA Power Solutions and our principals follow the same procedure of manufacturing and keep the strict quality control even for the aftermarket spare parts.

Most of the consumables spare parts and common wear and tear spare parts are available with us in ready stock and even in case of emergency urgent deliveries can be arranged through our principals based in Europe, Singapore AND Dubai.

WE DEAL IN FOLLOWING SPARE MODELS OF MAN B&W DIESEL ENGINE SPARE PARTS:-

S-26MC, S-35MC, S-42MC, S-46MC, S-50MC, S-60MC, S-70MC, S-80MC, K-80MC, K-90MC, K-98MC, L-35MC, L-42MC, L-50MC, L-60MC, L-70MC, L-80MC, L-90MC, K-80MC, K-90MC, K-98MC, RVVV 16/18, 23LH/4E, 28LH/4E, GV 23.5/33, L23/30(H), L28/32(H), L32/40, L27/38, S26MC, L/S35MC, L/542MC, L/S50MC, L/S60MC, L/S70MC, L/S80MC, L/S90MC, K45GF(CA), K55GF(CA), K55GF(CA), K80GF(CA), K90GF(CA), K62EF, K74EF KZ 70/102E, KZ 86/ 160E & etc.

REPAIR OF CRANKSHAFTS OF MAN B&W ENGINE:-

We are the specialist in repair of MAN B&W Crankshaft diameter ranging upto 700 mm onsite.

We have been offering crankshaft grinding and crankshaft repair services all over the world to MAN main and auxiliary engines installed in vessels or heavy industries. We will be pleased to share the case studies and blogs on the repair of MAN B&W crankshaft executed by us in last 41 years.

We have been executing the repairs in countries like Australia, Bangladesh, Cambodia, Chinese Mainland, Hong Kong , Indonesia, Japan, Malaysia, Maldives, Myanmar, New Caledonia, New Zealand, Philippines, Singapore, South Korea, Sri Lanka etc

This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions India Pvt. Ltd.).

Mr. Shahani is a highly experienced business leader with rich experience of more than 40 years in the field of Power, Heavy and Shipping industry. He is Technical Adviser to many shipping and heavy industries across the globe.

Mr. Shahani is one of the most enthusiastic professional and he has all the brilliance of an exemplary leader. Mr. Shahani is an extremely effective coach and mentor of teams and is adept at providing leadership in a global, cross-cultural environment.

For more information spare parts of MAN B&W marine engine, and diesel engine spare parts contact us on rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

High Quality Marine Engine Spares – RA Power Solutions

RA Power Solutions Pvt. Ltd. provides engine repair and crankshaft grinding services for the last 45 years to the shipping industry and diesel engine-driven power plants. Our expertise is in the repair of high-value spare parts onsite like crankshaft, cylinder heads, cylinder liners, connecting rods, and other marine engine spares.

We offer top-tier Marine Engine Spares of the highest quality, designed to keep your marine engines running smoothly and efficiently. Our meticulously crafted spares ensure optimal performance and durability, making them the preferred choice for shipowners and operators worldwide. All the marine engine spare parts and diesel engine spare parts are supplied with complete guarantee.

We manufacture and supply diesel engine spare parts and supporting equipment for all reputed make of marine engine like MAN-B&W, Sulzer, Wartsila, Mak, Deutz, Pielstick, Mitsubishi, Nohab, Daihatsu, Yanmar, Bergen, Crepelle, Niigata, Himsen, Allen, Stork, MWM, Hanshin, Caterpillar, Ruston, Paxman, Mirrlees, Alco, Fiat, ABC, Crespelle, SKL, etc.

Reconditioned marine engine spare parts are also supplied by us including crankshaft, cylinder heads, cylinder liners, connecting rods, piston rods, camshafts, etc. with a guarantee as ours is the only company having 37 years of experience undertaking the reconditioning of spare parts by highly skilled technicians using modern equipment.

Liner, Piston, Connecting Rod, Cylinder Head Under Assembly Supplied by RA Power Solutions — Liner, Piston, Connecting Rod, and Cylinder Head Under Assembly Supplied by RA Power Solutions

We also export marine engine spares and supporting equipment like fresh water generators, heat exchanger gaskets, electric motors, etc. to various countries like Qatar, Dubai, South America, Indonesia, Singapore, UK, Germany, Norway, etc.

For more information on MAN B&W Marine Engine Spare Parts, Marine Engine Cylinder Liners, Marine Engine Spare Supplier, marine engine spare parts, and diesel engine spare parts email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.