EDIRISINGHE BROTHERS LIMITED

PRECISION AUTOMOTIVE & MECHANICAL WORKSHOP SERVICES

RE-BORING, RE-GRINDING, FUEL INJECTOR PUMP SPECIALIST

WORLD CLASS AUTOMOTIVE WORKSHOP SERVICES

Our workshop is equipped to handle small passenger car engines to light/heavy duty commercial vehicle engines as well as large marine/generator engines.

Engine capacities ranging from 1 cylinder to 12 cylinder V-Type engines.

  • Same day service
    (Industry first and unique.)
  • 01 year unconditional warranty (Labour)
    (We re-do the work @ no charge even if the engine failure is caused by customer negligence)
  • 02 nd year special unconditional warranty discount.
  • Lowest machining labour rates in Sri Lanka
    (With best unconditional warranty offered in Sri Lanka).
  • Warranty for spare parts.
  • Complete diesel engine and diesel fuel pump rebuilds under one roof
  • Only engine rebuilder in Sri Lanka with AERA U.S.A country certification
    - Largest workshop capacity
    - Largest workshop workforce
  • Regular machinery update and replacement to ensure precision machining.
  • Workshop services provider for over 20,000 engines rebuilds per year.
  • Partner workshop service provider for leading vehicle agents in Sri Lanka.
  • Multiple levels of quality assurance.
  • Private family enterprise with board of directors on the floor day-today basis ensuring quality of service.
  • Importers and stockist for engine component replacement parts.
    (Bearings, piston/rings, valves/guides, diesel injector pump parts)
  • Open on Saturdays also.
    (Jobs undertaken and delivered on saturday)
  • Pay in 12 months (0% repayment plan for card holders)
  • Unmatched 65 years of pioneering engineering experience & excellence.

Crankshaft re-grinding of main and connecting rod journals of single cylinder to largest ' V type ' engine crankshafts, using the most precision crankshaft grinding machinery from EUROPE.

We operate one of the largest crankshaft grinders in the Southeast Asian region with a grinding length of up to 12 feet (3.7meters).

With this grinder we can accommodate medium to large size marine, locomotive and other large sized cranks and shafts.

We stock Main, Big end, Thrust, Cam, Servo bearings for most makes of Japanese and Indian vehicles in Sri Lanka.

Heavy Duty Print Roller Grinding – On South Asia's Largest Grinding Machine
Grinding and Polishing – Extended Length Industrial Shaft on South Asia's Largest Grinding Machine
Crankshaft / shaft Grinding – Large Scale (12feet / 3.7m )
Precision Crankshaft Grinding Division
Crankshaft Grinding – Medium to Large scale – 1 to 8 cylinder engines crank
Grinding of newly fabricated gear shaft
Precision Grinding Extruder shaft

Our crankshaft straightening press is designed for the straightening of crankshafts at the seat of distortion, for example in the con-rod journal, so that crankshaft balance is retained.

We can accommodate crankshaft/shaft lengths up to 107" and Journal diameter up to 5.9"

Crankshaft / shaft realignment – Large Size Marine Crankshaft.
Crankshaft / shaft realignment – Large Size Marine Crankshaft with aid of forklift for loading and unloading due to extreme weight of work piece.

We are able to detect cracks on crankshafts thus enabling us to identify problem cranks that can be rectified with our rebuilding process. Because we can detect cracks we can prevent the fitting of a cracked crank to an engine that can lead to a costly engine failure.

Magnetic Particle Inspection (MPI) of Crankshaft for crack detection.
Crack detection on a Japanese Diesel crankshaft journal under Magnetic Particle Inspection.

If a crankshaft journal has been excessively worn, seized or the hardness burned out, it'll be no problem to re-build to original OEM specs or better with our equipment.

Our rebuilding machinery and process is from U.S.A. and it uses a combination of unique welding materials and special application techniques to allow sophisticated alloys to be fused onto crankshaft / shaft journals so you receive proper OEM Rockwell "C" Hardness, plus a remarkable degree of flexibility.

The result is a rebuilt crankshaft / shaft that is stronger, and more flexible. Inboard fishing trawler/boat owners with Yanmar engines and JCB excavator owners are our most frequent customers for these rebuilds. We have used this rebuilding process to rebuild worn propeller shafts to OEM specifications of marine ships. (See pictures below)

Crankshaft and shaft rebuilds to OEM specifications
Rebuilding to OEM specifications of seized/worn-out crankshafts
Large-Size Marine Propeller shaft rebuilding to OEM specification.
Worn bearing seat of marine propeller shaft, machined in preparation for the rebuild.
Same marine propeller shaft during the rebuilding process
Small size marine propeller shaft after rebuild (Rebuilt are in red colour)

Precision boring for fitting oversized pistons and/or boring of parent bores to fit cylinder liners and re-boring same to suit new/old pistons. We carry parts such as pistons, rings and cylinder liners/sleeves for most makes of engines used in Sri Lanka.

Cylinder Block Boring – 1 to 8 cylinder engine blocks
A Section of the Boring Machine Division

Precision honing with the use of new machinery ensures a good cross-hatch finish. Many of the leading racing drivers and technicians use our services because of our precision engineering work.

Cylinder Bore Honing / Polishing – 1 to 8 cylinder blocks

Our valve seating work is of a very high standard with multiple levels of quality control at machine operator level, sectional supervisor level and quality assurance officer level. We perform the adjustment of tappet clearances and also mechanized valve lapping/grinding. We carry a large stock of Valves, Guides, Tappet Shims etc.,

Valve Seat Cutting– Adjustment of Tappet Clearance
Valve Seat Cutting– Adjustment of Tappet Clearance
High quality valve decarbonizing and checking of alignment.
Valve Re-facing

Precision surface grinding of cylinder heads, blocks etc., Multi-level quality assurance coupled with modern machinery ensures an accurate and precision finish.

Surface Grinding – Cylinder head / block re-facing in process.
Surface Grinding

Increased engine performance may result in warped blocks, necessitating the re-boring of main bearings and camshaft bearings. Thrust bearing faces can be damaged due to bearing seizure. Re-boring of main bearings, camshaft bearings, re-boring of cylinder head camshaft bores and repairing of thrust bearing faces are all done on our line-boring machines.

Seized main bearing housings can be brass-filled and line-bored to original size specifications in order to re-use a potentially un-usable block thus saving a huge cost.

Precision Line Boring of a Large Marine Cylinder Block.
Precision Line Boring of a Large Marine Cylinder Block.
Line-Boring of CAT Large Machine Engine Block
Precision Line-Boring of CAT parent main bearing housing.

Grinding of parent housing of con-rods to suit bearings. Boring of gudgeon pin bushes to suit new/old piston pins.

We carry a large inventor bearing and bushes to suit most engines used in Sri Lanka.

Connecting Rod Grinding / Boring / Gudgeon pin bush boring in process.
Connecting Rod Boring and Grinding.

Our latest 'Hot-Cold-Hot' cyclic pressure tester is the world's most accurate pressure tester to detect surface/internal cracks caused by heat stresses on cylinder blocks and cylinder heads.

We are also unique in offering a heat and test method (submersible) using pressurized air to detect cracks on cylinder heads and blocks. These cracks can lead to compression leaks to waterways leading to overheating and surface war page

Pressure Testing Section
Cylinder Head / block / oil cooler – Pressure Testing - Heat submersible method
Cylinder Head / block / oil cooler – Pressure Testing - Heat submersible method
Crack Detection under pressure testing – 02 cracks visible inside the cylinder bore.
One crack detected under pressure testing circled in white inside one cylinder bore
Crack detection on cylinder head with Magnetic Powder Test
Surface crack detection under pressure test on Japanese four cylinder head. Crack shown in yellow with magnetic powder creeping into combustion pre-chamber.
Surface crack in between two valve seats on a popular Japanese diesel engine cylinder head.

We can metal stitch most kinds of cracked cylinder heads and blocks using the Lock-N-Stitch method thus enabling you to re-use potentially un-usable heads and saving you money.

We offer a special Warranty for all our crack repairs subject to certain conditions.

We are able to test and calibrate and overhaul most types of mechanical injector pumps. We can also pressure nozzles to specifications. We carry a large inventory of injector pump spares.

BOSCH – Mechanical Diesel Fuel Injector Pump Test and Calibration
BOSCH – Mechanical Diesel Fuel Injector Pump Test and Calibration
BOSCH – Mechanical Diesel Fuel Injector Pump Test and Calibration – Large Size Pump
Diesel Fuel Injector Pump overhaul and repair.
Dedicated QUALITY ASSURANCE OFFICER Inspecting a Finished Workpiece
Computerised Job Tracking System Inside Workshop
Real-Time Job Tracking System for  Service Advisors and customers
Workshop and Facilities Conforming to Quality Standards