Hartmann Bros. Inc. | Established in 1955
Heavy-Duty Engine Block Repair & Machining Services in Abilene, Texas
Hartmann Bros. Inc. provides expert engine block repair and machining for large, heavy-duty diesel and industrial engines.
From precision inspection to resurfacing and sleeving, we restore performance and extend engine life.
- Precision Inspection
- Magnaflux Crack Detection
- Resurfacing & Sleeving
- Final Cleaning & Quality Control
Established 1955
Precision Machining
Industrial Engines
Fast Turnaround
Hartmann Bros. Inc. | Established in 1955
Large Engine Block Repair Service Abilene, Texas
Hartmann Bros. Inc. provides expert engine block repair and machining for large, heavy-duty diesel and industrial engines.
From precision inspection to resurfacing and sleeving, we restore performance and extend engine life.
- Precision Inspection
- Magnaflux Crack Detection
- Resurfacing & Sleeving
- Final Cleaning & Quality Control
Precision. Power. Performance.
Engine Block Repair Services
Our engine block repair services are built for durability and performance.
We combine advanced inspection methods with precision machining to restore your engine block to OEM specifications.
From industrial generators to heavy-duty trucks and off-road equipment, we handle the toughest blocks with the care and expertise they deserve.
- Cleaning
- Inspection
- Crack Repair
- Resurfacing
- Sleeving
- Machining
- Quality Control
Our Process
Built on Precision. Delivered with Care.
Cleaning
Blocks are hot-tanked and media blasted to remove all contaminants and prepare for inspection.
Inspection
We perform a thorough visual and dimensional inspection to identify wear, damage and necessary repairs.
Magnaflux Testing
Every engine block is magnaflux tested to detect cracks or stress areas that aren't visible to the naked eye.
Cold Spray Welding & Resurfacing
We repair cracks and worn surfaces using advanced cold spray welding and precision resurfacing.
Final Cleaning
Final cleaning and quality control ensure your block is ready for reassembly and peak performance.
Our Services
Industries We Serve:
Oil & Gas
Power Generation
Marine
Agriculture
Heavy Equipment
Trucking / Fleet
Get in Touch:
50+ Years of Experience in..
- Remanufacturing Large Engine Blocks
- Industrial Crankshaft Repair
- Remanufacturing Cylinder Heads
- Remanufacturing Connecting Rods
- General Machining
How We Work
Engine Block Machine Shop Service from Abilene, TX
Welcome to Hartmann Bros. Inc. – your trusted name in engine block repair for over 30 years. Whether your block is cracked, worn, or warped, we restore its function and reliability with precision machine work and expert craftsmanship.
We start by verifying the block size, checking casting numbers, and assessing whether it needs sleeves, align boring, or other specialized procedures.
Our engine block repair solutions are tailored to match your block’s make, cylinder configuration, and specific cam setup. Let us walk you through how our engine block services work – step by step.
- Engine Block Cleaning
- Engine Block Inspection
- Magnaflux Engine Block
- Cold Spray Welding and Engine Block Resurfacing
- Final Cleaning of the Engine Block
50+ Years of Expertise
Our Engine Block Repair Service Step by Step:
At our full-service engine block machine shop, precision is everything. Every block we handle goes through a carefully designed process to ensure performance meets or exceeds OEM standards. Our facility is equipped with state-of-the-art machines to handle heavy-duty industrial engines.
- Engine Block Cleaning
Before any work begins, we thoroughly clean the engine block to remove oil, carbon, rust, and debris. The block is placed in a high-temperature tank where water and chemicals break down residue.
Then, oil passages are cleaned using pressure to ensure nothing is left inside. This step is crucial to prevent future damage. Clean cylinder walls, a contaminant-free surface, and spotless gasket areas are the foundation of a successful repair.
- Engine Block Inspection
Next, our expert technicians begin a full inspection of the engine block. We look for cracks, core shift, excessive wear, and metal fatigue. Using precision tools, we measure every bore, main bearing saddle, cam tunnel, and deck height.
We inspect for worn main caps, misaligned bores, and verify the piston-to-wall clearance. If a crack is found, we evaluate whether a sleeve insert or cold spray welding is the best repair path forward.
- Magnaflux Engine Block
To identify hidden cracks in cast iron blocks, we use the Magnaflux method. This magnetic particle inspection process highlights even the smallest damage invisible to the eye. It’s especially helpful for pinpointing issues around the main caps, cylinder decks, and cam bores.
If a crack is found, and the metal is suitable, we may proceed with cold spray welding – a modern engine block repair method that uses kinetic energy instead of heat.
- Cold Spray Welding and Engine Block Resurfacing
Cold spray welding allows us to repair cracks, pits, and porosity without affecting the surrounding metal structure. Here’s how it works:
We clean the damaged area.
We machine the defect to a precise shape.
A fine metal powder (aluminum or steel, depending on the block) is sprayed at supersonic speed.
The particles fuse to the surface, restoring the shape without heating the engine block.
We then machine and resurface the area to the correct height and finish.
After the weld is set, the block is decked and resurfaced to ensure proper gasket sealing and piston operation.
- Final Cleaning of the Engine Block
Before final assembly or shipping, we clean the engine block again. This includes ultrasonic rinsing, pressure washing, and manual scrubbing of oil and coolant passages. We ensure each cylinder, bore, cam tunnel, and main cap is free of any machining debris.
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