Your Engines DeserveExpert Hands
From precision CNC machining to clutch repair, suspension work, and high-performance luxury, we deliver expert service for every vehicle.
5,000+
Engines Repaired
28+
Years Exp.
Byculla
Mumbai
Mon - Sat: 9:00 AM - 7:00 PM
Sunday: 9:00 AM - 3:00 PM
28+
Years Experience
5,000+
Engines Repaired
4,500+
Happy Customers
50+
Service Types
Authorized Service Partners
What We Do
Complete Engine & Mechanical Services
From precision CNC machining to clutch repair, suspension work, and high-performance luxury engines — we deliver expert service for every vehicle.
Engine Boring & Honing
Precision cylinder boring and honing to restore compression, eliminate oil burning, and bring your engine back to factory-fresh performance.
Crankshaft Repair & Grinding
Expert crankshaft grinding, polishing, and journal restoration to remove wear, scoring, and out-of-round conditions.
CNC Head Facing
State-of-the-art automated CNC head facing machine for precision cylinder head surfacing — ensures perfect flatness and optimal gasket sealing.
Valve Grinding & Seat Cutting
Professional valve grinding, seat cutting, and lapping for optimal compression and combustion efficiency across all engine types.
Tappet Setting & Clearance
Precision tappet adjustment and valve clearance setting for quiet, smooth engine operation and extended valve train life.
Engine Rebuilding
Complete strip-down, inspection, CNC machining, and reassembly using quality parts. We breathe new life into worn engines.
Engine Overhaul
Top-end or full overhaul — valve grinding, ring replacement, bearing checks, seal renewal, and precision assembly.
Clutch Repair & Replacement
Expert clutch diagnosis, repair, and replacement for all vehicle types. We ensure smooth engagement and maximum clutch life.
Cylinder Head Repair
Crack repair, surface grinding, valve guide replacement, and pressure testing for all petrol and diesel engines.
Steering & Suspension
Diagnostics and repair of steering racks, pumps, linkages, and suspension components for safe, stable handling.
Air Suspension Repair
Specialized air suspension diagnostics and repair — compressors, struts, air bags, valves, and height sensors for luxury vehicles.
Axle & Ball Joint Service
Professional axle shaft repair, CV joint replacement, and ball joint servicing for front and rear suspension systems.
Performance & Luxury Engines
Specialized engine work for BMW, Mercedes-Benz, Ferrari, and high-performance sports cars — precision engineering you can trust.
Disc Cutting / Skimming
Precision brake disc cutting and skimming to restore smooth braking, eliminate vibration, and extend disc life.
Truck & Bus Engine
Heavy-duty engine repair and rebuilding for commercial vehicles, large-bore diesel engines, and fleet maintenance.
Bearing Replacement
Precision fitting of main bearings, big-end and small-end bearings using quality components for maximum longevity.
Overheating Solutions
Diagnose and fix engine heating problems — coolant checks, thermostat replacement, radiator service, and more.
Engine Seizure Repair
Complete diagnosis and repair of seized engines — piston extraction, cylinder reconditioning, and expert reassembly.
Oil-Water Mix Fix
Identify and repair coolant-oil mixing caused by gasket failures, crack repairs, and cylinder head reconditioning.
Fuel Injection Repair
Cleaning, calibration, and repair of injectors and injection pumps for optimal combustion and fuel efficiency.
Need something else? Tell us what you need
Why Choose Us
Built on Trust, Precision & Care
We've built our reputation on honesty, quality work, and putting our customers first. Here's why drivers across Mumbai choose us.
15+ Years Experience
Over a decade of precision engine work — we've seen every problem and know exactly how to fix it.
CNC Precision Machinery
Equipped with an advanced automated CNC head facing machine and precision tools — we deliver factory-tolerance accuracy on every job.
Transparent Pricing
No hidden fees, no surprises. We quote upfront and explain every cost before any work begins.
Luxury & Performance
We routinely work on BMW, Mercedes-Benz, Ferrari, and high-performance sports cars — precision work for premium vehicles.
Comprehensive Scope
From engine boring to clutch repair, air suspension, axle work, and valve grinding — we handle it all under one roof.
Quality Guaranteed
We stand behind our work. Every repair is backed by our quality guarantee for your peace of mind.
Locally Trusted
Family-owned and operated in Byculla for 15+ years. Our reputation is built on honest work and happy customers.
How We Work
Our 4-Step Process
We follow a proven, transparent process to ensure every engine repair is done right — from diagnosis to delivery.
Diagnose
We thoroughly inspect your vehicle and run complete diagnostics to identify every issue — no guesswork, no hidden surprises.
Quote & Approve
We provide a transparent, itemized quote with no hidden fees. You approve the work before we start.
Precision Work
Our expert technicians perform the repair using precision machining equipment and quality parts.
Test & Deliver
Every engine is rigorously tested before delivery. We ensure it runs smooth, quiet, and reliable — guaranteed.
10,000+
Engines Diagnosed
98%
Customer Satisfaction
< 2 hrs
Avg. Diagnosis Time
50+
Vehicle Brands
Ready to get started?
Call us at +91 9322412418 or WhatsApp us to schedule a diagnosis.
Free Engine Diagnostic Check
Not sure what's wrong with your engine? Bring it in for a free diagnostic assessment — no obligation, no hidden charges. Just honest, expert advice.
About Us
Decent Boring Works
Engine Specialists Since 1998
Decent Boring Works has been the original, authentic engine specialist in Byculla since 1998, building a reputation for honest diagnostics, precision machining, and fair pricing. We hold the official brand authority and patent for Decent Boring Works in Byculla.
We specialize in all types of 4-wheeler, 6-wheeler, and truck engine work: from compact passenger cars to heavy trucks, marine engines, and high-performance sports cars including BMW, Mercedes-Benz, and Ferrari. Our workshop is equipped with an advanced CNC automated head facing machine and state-of-the-art precision equipment.
Beyond engine boring and rebuilding, we handle clutch repair, valve grinding, tappet setting, honing, axle and ball joint work, suspension systems, and air suspension, making us a comprehensive one-stop shop for all your mechanical needs.
We hold direct service partnerships and authorized relationships with leading automotive brands.
Decent Boring Works
Engine Specialists Since 1998
Testimonials
What Our Customers Say
Real feedback from real customers across Mumbai who trust us with their vehicles.
“My engine was overheating badly. They diagnosed the issue in minutes and had it fixed the same day. Professional work, fair pricing. Highly recommend!”
Rahul Sharma
Maruti Suzuki Swift
“Got my engine completely rebuilt after a seizure. The team did an outstanding job — the car runs smoother than ever. Honest mechanics who know their craft.”
Pritesh Mehta
Toyota Innova
“Had an oil-water mixing problem that other workshops couldn't solve. Decent Boring Works fixed it permanently. Transparent pricing and excellent work.”
Sneha Patel
Honda City
“Brought my BMW in for valve work and head facing. Their CNC automated machine delivered a perfectly flat surface — the precision was incredible. Engine runs smoother than ever. Trust these guys with any car.”
Sameer Mehta
BMW 3 Series
“Steering was making noise for months. Turned out the pump needed repair. They fixed it at half the price the dealer quoted. Very satisfied.”
Imran Khan
Mahindra Scorpio
“Had a complete engine overhaul done here. The team was transparent about every step, the pricing was fair, and my car feels brand new. Will definitely return.”
Amit Desai
Hyundai i20
Engine Care Tips
Keep Your Engine Healthy
Simple maintenance advice from our experts to help you avoid costly repairs and extend your engine's life.
Check Engine Oil Regularly
Low or dirty oil is the #1 cause of engine wear. Check your oil level every 2 weeks and change it every 5,000–7,000 km.
Watch for Overheating Signs
If your temperature gauge rises above normal or you see steam from the hood, pull over immediately and call a specialist.
Don't Ignore Engine Noise
Knocking, tapping, or grinding sounds from your engine mean something is wrong. Early diagnosis can save you from a costly rebuild.