At Donnelly Engineering, we specialise in precision engine reconditioning for automotive, marine and industrial applications across the Gold Coast.

From complete assembled engine rebuilds to individual machining services, every component is handled in-house using advanced equipment and decades of experience. Whether you require cylinder head reconditioning, boring and honing, or a full rebuild, we deliver accurate, reliable results built to last.

Warranty for automotive engine builds is 12 months or 20,000km (whichever comes first) and Marine is 6 months warranty. 

We also supply premium engine rebuild kits and VRS kits:

• Inlet and exhaust valves

• VRS gasket sets

• Head bolts (torque-to-yield where applicable)

• Cam bearings (where applicable)

If you’re after a firm price for your engine rebuild or cylinder head kit, get in touch with our team today.

With over 125 years of combined experience and more than 40,000 completed jobs since 1992, Donnelly Engineering is a trusted name in precision engineering on the Gold Coast.

Our fully equipped modern workshop allows us to deliver high-quality machining and engineering solutions with fast turnaround times. From small component work to large-scale projects, we approach every job with accuracy and attention to detail.

Local pick up for local businesses only (not regular COD customers) 

For added convenience, we provide on-site engineering services including:

• Machinery maintenance

• Levelling and alignment

• Tolerance measuring

• Bearing replacement

• Machine modifications

When precision matters, our team delivers workmanship you can rely on.

Marine environments demand durability and precision. Our specialised marine engineering services are designed to extend the life of your vessel’s critical components while reducing unnecessary replacement costs.

We offer accurate taper turning of propeller shafts, straightening of bent shafts and rudders, and reclamation of worn surfaces - often saving clients significantly compared to full replacement.

Additional marine services include:

• Spray welding worn seal areas

• Chemical cleaning and restoration of heat exchangers

• Oil and gearbox cooler repairs

• Raw water pump reconditioning

• Pressure testing and tolerance machining

All work is completed in-house using precision equipment to ensure performance and reliability in demanding marine conditions.

For a free quote or technical advice, contact our experienced team today.

We provide on-site mechanical and fitting services across marine, automotive and general industrial applications. Our experienced team can assist with a range of repairs, removals, refitting and breakdown services, helping to minimise downtime and get your equipment back in operation.

Our Marine on-site services include:

• Shaft seal replacement

• Cutlass bearing replacement

• Propeller shaft removal and refitting

• Shaft straightening

• Rudder bearing replacement

• Rudder removal and refitting

• Propeller removal and refitting

• Engine removal and refitting

• Cylinder head removal and refitting

Automotive & General Fitting Services

We provide general fitter breakdown services for a range of vehicles and equipment, including but not limited to:

• Cars

• Cranes

• Trucks

• Tippers

• Drill rigs

• Other general machinery and equipment

We also offer broken bolt removal services to assist with difficult repairs and maintenance work.

Please note: All on-site services are subject to availability and may incur call-out fees and applicable hourly rates. Please contact us to discuss your requirements and availability.

Our dedicated team provides a comprehensive range of engine machining and reconditioning services, with all work carried out in-house. This allows us to maintain quality control throughout the machining process and provide efficient, reliable solutions for a range of engine requirements.

Our engine machining services include:

• Cylinder head reconditioning

• Crack testing

• Pressure testing

• Engine block boring and honing

• Acid dip cleaning

• Sandblasting cleaning

• Cylinder head and engine block surfacing

• Crankshaft polishing

• Torque plate honing

With a focus on precision and quality workmanship, our team is equipped to assist with a wide range of engine machining and reconditioning requirements.

When a breakdown brings your business to a standstill, getting back up and running quickly is essential. We provide urgent breakdown services for commercial trade businesses, offering both on-site and in-house repair solutions to help minimise downtime and keep your operations moving.

Our team can assist with urgent repairs and breakdowns across a range of commercial vehicles, machinery and equipment. Whether you need assistance on-site or your equipment needs to come into the workshop, we'll work with you to find an efficient solution and get you back to business as quickly as possible.

For all urgent breakdown enquiries, please contact our workshop during business hours and speak with one of our friendly team members.