b31d9f83ccfced21212c8298ec8e876c_2San Antonio’s #1 Engine Repair, Engine Rebuild, Valve Jobs, Crankshaft Grinding, Diesel and Engine Balancing

     We have been serving San Antonio and South Texas for the last 46 years, providing precision engine machine work and engine parts. Through excellent customer service and attention to detail our goal at Duffin Engine Service is to exceed your expectations.duffnengine_header
Duffin Engine Service is open Monday through Thursday 8:00 am to 5:00 pm. Friday 8:00 am to 3:00pm. Located at 1227 Hallmark,three blocks inside Loop 410, near Airport Blvd. [click for directions]. We offer engine machine shop services for Automotive, Over the road diesel trucks, Industrial, Marine, High Performance and small engines. Duffin Engine Service is committed to keeping current with the latest technologies, to accomplish this we are a member of the Automotive Engine Rebuilders Association(AERA).

SERVICES OFFERED

  • BLOCKS
  • CONNECTING RODS
  • CRANKSHAFTS
  • CYLINDER HEADS
  • CLEANING
  • MISCELLANEOUS

BLOCKS

  • MAGNAFLUXING
  • CYLINDER BORING & HONING
  • SURFACING & COUNTERBORES MACHINED
  • ALIGN BORING & ALIGN HONING
  • UPPER & LOWER BORE SLEEVING
  • MAIN BEARING BORES & MAIN CAP SLEEVING
  • CAM BEARING BORE SLEEVING & ALIGN BORING
  • PRESSURE TESTING & CASTING REPAIRS.

CRANKSHAFTS

  • MAGNAFLUXING
  • STRAIGHTENING
  • THRUST REPAIR
  • MICRO-POLISHING

CYLINDER HEADS

  • VALVE JOBS
  • SURFACING
  • VALVE GUIDE REPLACEMENT & REPAIR
  • VALVE SEATS INSTALLED,
  • PRESSURE TESTING & ALUMINUM HEAD WELDING (CASTING REPAIR)

CLEANING

  • VAT CLEANING CAST IRON & ALUMINUM
  • RUST STRIPPING
  • GLASS BEAD & SHOT PEENING
  • ULTRA SONIC CLEANING

CONNECTING RODS

  • MAGNAFLUXING
  • BIG END RECONDITIONING
  • REBUSH & PIN FIT SMALL ENDS

MISCELLANEOUS

  • FLYWHEEL GRINDING
  • ENGINE BALANCING
  • WELDING & BRAZING (STEEL & ALUMINUM)
  • TRANSMISSION & FLYWHEEL BEARING BORE SLEEVING
  • BROKEN BOLT REMOVAL & THREAD REPAIR
  • BROKEN TAP & EZ OUT REMOVAL (METAL DISINTEGRATING)

AERA is our source for technical and service bulletin information, always keeping us up to date.

Russ Duffin - Duffin Engine, San Antonio

Crankshaft repair

Engine repair - crankshaft

Boring diesel block

 

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