Compressor, engine and gearbox casing repair
Bearing-bore wear, split-line distortion and oil-leak paths at gasket faces retire compressor, engine and gearbox housings before the internals wear out.
The need for compressor, engine and gearbox casing repair
BHI Coatings performs compressor, engine and gearbox casing repair across Alvin and the Texas Gulf Coast. The internals still have life in them. The housing does not. Bores go oversize, split lines distort, and gasket faces start weeping oil, and one cracked or eroded casing takes the whole machine out of service. Replacing a compressor, engine, or gearbox casing means OEM lead times measured in months and a capital line item that dwarfs the original defect.
How BHI Coatings does compressor, engine and gearbox casing repair
We rebuild worn bearing bores and split-line faces cold, in our climate-controlled Alvin shop or at your site, with no welding heat to warp the casting. The crew prepares the metal, applies a machinable repair composite such as Belzona 1111 or 1121, then machines the surface flat and back to dimension. The bore and gasket face return to OEM tolerance without an arc.
Typically applied with Belzona 1111, Belzona 1121, matched to the service conditions.
That housing goes back in during the outage already on your calendar, not whenever a replacement casting finally ships. The alignment datum stays where it was, and the long-lead capital purchase never gets written.

More Metal Repair applications
Welding on pressure separators and code-stamped vessels triggers re-stamping, stress relief and thermal distortion that can cost more than the defect.
Learn more →General metal-loss rebuilding compositesMetal loss from corrosion, erosion or pitting retires equipment once it reaches a code-trigger thickness, and weld build-up adds heat distortion.
Learn more →Heat exchanger, tube sheet and water box repairDissimilar tube metals set up galvanic corrosion at the tube sheet and water box, attacking the steel around each tube end and opening leak paths.
Learn more →On-site flange face and nozzle insert repairHeat cycling, gasket-witness machining and dropped tools deform flange faces and corrode nozzle sleeves, so the line leaks and stays out of service.
Learn more →Plain bearing, bushing and bearing-housing repairWorn bearing bores, fretted bushing seats and vibration-loosened housings shift the rotating axis and shorten coupling and seal life.
Learn more →Pump impeller and casing rebuildingErosion-corrosion and cavitation reshape impeller vanes and casing profiles, pulling the pump off its head curve and cutting efficiency.
Learn more →All 11 in Metal RepairThe whole capability in one place, with the work grouped.
See the capability →Contact BHI Coatings
Have equipment that needs to stay in service?
Tell us what is failing. We respond quickly, and we offer 24-hour on-call service.

