Rehoboth Marine Equipment Repair L.L.C logo - ship repair company in Fujairah

Rehoboth

Marine Equipment

Marine Main Engine Overhaul & Mechanical Engineering in Fujairah

Engine Room Specialists Based in Al Hayl Industrial Area, Fujairah

Rehoboth Marine Equipment Repair L.L.C is a ship repair company in the Al Hayl Industrial Area, Fujairah, specialising in marine main engine overhaul, vessel crankshaft grinding and polishing and ship cylinder head reconditioning. We work in the engine room - not on the hull - which means our fitters, machinists and measuring equipment are set up for running gear, bearings and precision machining rather than steel renewal. Superintendents call us for planned overhauls at Fujairah anchorage and for breakdowns that must be closed out before the vessel sails.

Work is carried out onboard at Port of Fujairah, Fujairah anchorage, Khorfakkan, Port Rashid, Dubai Maritime City, Jaddaf, Khalid Port Sharjah, Ajman Port and Marina Port Abu Dhabi, or in our workshop when a component has to come ashore for machining, re-metalling or balancing. Every job is returned with recorded clearances and measurements so the chief engineer and class surveyor have a documented result.

Marine main engine overhaul in progress at the Rehoboth Marine workshop, Al Hayl Industrial Area Fujairah

Engine Overhaul Services We Deliver

Each discipline below is handled by our own engineers and machinists from the Fujairah workshop.

Main Engine Overhaul

Piston and liner withdrawal, main and bottom-end bearing renewal, running gear inspection and re-assembly to maker's clearances on two-stroke and four-stroke engines.

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Auxiliary Engine Repair

Auxiliary engine repair specialists for UAE vessels - fault diagnosis, top overhauls, decarbonising and full rebuilds onboard or ashore.

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Cylinder Head Reconditioning

Hydraulic pressure testing, valve seat cutting and lapping, valve and guide renewal, injector sleeve inspection and recorded re-assembly clearances.

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Crankshaft Grinding & Polishing

In-situ journal and crankpin polishing, ovality and taper measurement, deflection readings and fillet radius inspection.

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White Metal Bearing Refitting

Bearing inspection, re-metalling, boring to shaft size, hand scraping and blue-checking to the specified contact area and oil clearance.

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Fuel Injector & Pump Repair

Injector pop testing and nozzle renewal, opening pressure setting, spray pattern checks and fuel pump overhaul with timing verification.

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Pump & Machinery Overhaul

Centrifugal, gear, screw and reciprocating pump rebuilds with wear ring renewal, seal fitting, alignment and performance testing.

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Marine Spare Parts Supply

Engine, bearing and running gear spares identified from maker's plate and drawing numbers and delivered to the vessel.

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Emergency Onboard Troubleshooting

Breakdown attendance at Fujairah anchorage and UAE ports when the engine has to be back on load before departure.

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How We Carry Out a Crankshaft Polish and White Metal Bearing Refit

A superintendent facing wiped bearing metal or scored journals needs to know the sequence and what will be measured. This is the procedure our team follows in Fujairah.

  1. 01

    Open up and record the damage

    Bearing caps are lifted, shells removed and the damage photographed. We record wiping pattern, score depth and any embedded debris, and take oil samples where contamination is suspected.

  2. 02

    Measure the journal

    Journal and crankpin diameters are measured at multiple points for ovality and taper with micrometers, and crankshaft deflections are taken and compared against the engine maker's limits.

  3. 03

    In-situ grinding and polishing

    Scoring is removed by in-situ grinding, followed by progressive polishing with emery belts until the required surface finish is achieved. Fillet radii are checked and blended so no stress raiser is left behind.

  4. 04

    Bearing assessment or re-metalling

    Existing shells are checked for bond failure and cracking. Where re-metalling is required the shell is stripped, tinned, re-cast with white metal, and bored to suit the measured journal size.

  5. 05

    Hand scraping and blue-checking

    The bearing is hand scraped and blue-checked against the journal until the contact area meets the maker's specification, giving even load distribution rather than a hard spot that fails again.

  6. 06

    Close up and record clearances

    Bridge gauge and feeler readings are taken, oil clearance verified, bolts tightened to the specified torque or hydraulic pressure, and the final measurements issued to the vessel in a written report.

Onboard Overhaul vs Workshop Overhaul

Which route suits your vessel depends on the component, the port stay and the machining required.

WorkOnboard at Fujairah anchorageAt our Al Hayl workshop
Piston, liner and running gear overhaulYes - standard scope, no cargo delayOnly if the component needs machining
Cylinder head reconditioningValve lapping and light workFull recondition - pressure testing, seat cutting, guide renewal
Crankshaft grinding and polishingYes - in-situ grinding and polishingFor crankshafts removed from small engines
White metal bearing refitFitting and scraping of prepared shellsRe-metalling, boring and scraping
Fuel injector and pump repairInjector change-out and testingFull overhaul with calibration
Pump and auxiliary machinerySeal and bearing renewalFull rebuild with performance testing

Engine Room Down? Get an Engineer Alongside.

We mobilise from Al Hayl Industrial Area to Port of Fujairah, Fujairah anchorage, Khorfakkan, Port Rashid, Dubai Maritime City, Jaddaf, Khalid Port Sharjah, Ajman Port and Marina Port Abu Dhabi. Tell us the engine make, the symptom and your sailing time, and we will confirm attendance and the spares needed.

Frequently Asked Questions

Do you carry out marine main engine overhaul in Fujairah while the vessel is at anchorage?

Yes. Most main and auxiliary engine overhauls are done onboard at Fujairah anchorage. Only components needing machining, re-metalling or balancing come ashore to our Al Hayl Industrial Area workshop.

Can you grind and polish a crankshaft without removing it from the engine?

Yes. Journals and crankpins are ground and polished in-situ. We take ovality, taper and deflection readings before and after so the result is documented against the engine maker's limits.

What makes you different from a general ship repair yard in Fujairah?

General yards are geared for hull and steel structural work. Our workshop and engineers are set up for engine room mechanical work - running gear, bearings, cylinder heads, fuel systems and precision machining.

How quickly can you attend a breakdown in UAE waters?

Call +971 55 399 5722 with the vessel's location and defect. Fujairah anchorage and Port of Fujairah are closest to our workshop; we also mobilise to Khorfakkan, Sharjah, Dubai, Ajman and Abu Dhabi ports.

Do you supply the spares as well as the labour?

Yes. We identify spares from the maker's plate and drawing numbers, quote with lead time, and deliver them to the vessel alongside the repair team.

Engine Room Technical Guides

How we approach the failures superintendents ask us about most.

All technical guides