Daihatsu 5DK-20 Engine Crankshaft Repair

About Daihatsu 5DK-20 Engine Crankshaft Repair

A Power Solutions was approached by a leading shipping company regarding  problem faced by them in the crankshaft of Daihatsu 5DK-20 Auxiliary Engine.

Action taken by RA Power Solutions to Repair of Crankshaft of Daihatsu 5DK-20 Engine

i) Two technicians were deputed to Vizag Port Visakhapatnam along with necessary onsite grinding equipment.

Following are the Daihatsu 5DK-20 Engine and Crankshaft details:

S. NO	Crankshaft Details
1	Engine Make	Daihatsu
2	Engine Model	5DK-20
3	Crank pin Diameter Standard	170.00 mm
4	Crankpin Bearing Width	78.00 mm
5	Place of execution of crankshaft repair	Vizag Port Visakhapatnam

ii) The 5 number crankpin were inspected and following are the main observations:

      Crankpin no. 1 was found damaged and following minimum & maximum readings were observed. 

        a) Minimum diameter observed :    169.75 mm

        b) Maximum diameter observed:    169.89 mm

Thus the total wear of the crankpin after damage was 0.25 mm which is considered to be very much on the higher side as the standard diameter specified by the Daihatsu engine manufacturer in their maintenance manual is 169.97 mm. 

iii) The deep bearing line marks were also observed on crankpin no. 1 due to seizure of crankpin bearing.

iii) Since the deep bearings line marks were still present. It was decided to undertake the grinding to the next undersize of 1.0 mm.

iv) The crankpin was polished and after grinding & polishing the final size of 168.97 mm to 168.99 mm was maintained. The crankpin no. 2 and 5 were also polished.RA POWER can maintan the surface finish of less then 20 Ra value.

Successful Repair of Crankshaft of Daihatsu 5DK-20 Engine by RA Power Solutions:

The ship owners gave RA Power Solutions technicians only 18 hrs. to execute the job and this was successfully done by working non stop on board the vessel.  

RA Power Solutions have been extending engine repair services all over the world and specialise in grinding of crankshaft up to 700 mm diameter. 

We are extending our services all over the world with guarantee and we are known for our sincerity and low prices.

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Expert Marine Crankshaft Reconditioning

Our team leverages advanced technology and skilled technicians to restore Daihatsu 5DK-20 engine crankshafts. Through meticulous grinding and reconditioning, we deliver superior durability and reliability for marine applications. Every repair meets stringent OEM standards for optimal compatibility and extended engine life.


Comprehensive Quality and Safety Measures

We prioritize safety and precision in every crankshaft repair. Post-repair inspection utilizes ultrasonic and magnetic particle methods to ensure structural integrity and detect any flaws. Heat treatment is also available per specification, enhancing material properties and operational longevity in demanding marine environments.