Porsche Engine Case Machining
Accurate and quality machine work is critical for any engine build and is considered as part of the foundation for maximum reliable power output. In addition to building a wide range of Porsche engines here at Mountune USA, we also provide a complete Porsche engine case machining and processing program for engine builders and restoration shops. We offer a wide range of services all done in house to motorsport standards on the latest CNC engine machining centers. Our precision machined engine cases and cylinder heads can be found in the highest level of builds, from motorsport to complete restorations. Our team has decades of engine experience including Formula One, Indy Car, Sports Cars and Vintage providing world class service across the globe.
A Selection of Available Services
- Remove oil gallery plugs and piston oil squirt jets
- Cleaning
-
Vapor / Wet Blasting
- Align bore main bearing tunnel (Vertical process)
- Align bore layshaft to spec
- Surface cylinder spigots to ensure flatness and parallelism
- Check cylinder spigots for ovality and flatness (CMM Process)
- Bore Case for larger Cylinders
- Bore Case for larger Cylinders w O-ring
- CNC Cylinder Honing
- Replace oil gallery plugs and oil squirt jets
- Remove broken Stud (EDM Process)
- Oil Bypass Modification
- Shuffle Pin Modification
- Machine Case and Install Case Savers
- Machine Case for Larger Oil Pump
- Crack Testing
- Dynamic Balance Rotating Assembly (Crank, Rod, Pistons, Flywheel, Clutch, Pulley)
- Cylinder Head Rebuilding
- Crankshaft Micro Polishing
Precision
The main bearing housing/tunnel in older engine cases or cases that have had high duty cycles are often out of round or enlarged. Returning the case back to original dimensions provides accurate oil pressure and heat dissipation.
Precision
We first resize the engine case by machining each case half mating surface and removing a small amount of material thereby closing up the main bearing tunnel bore and reducing the diameter below the current dimension. This process is done on one of our CNC centers resulting in precise, flat case half mating surface providing complete sealing during final engine assembly.
Precision
The case halves are then assembled using the original fasteners, torqued to original specification. The assembled case is then mounted in our Rottler F69A where we align bore the main bearing tunnel vertically. The vertical process yields a more precise and straighter tunnel compared to the horizontal method. We also machine the layshaft bore during the same operation. Each case is then inspected and deburred and cleaned.
Cylinder Heads
Rebuild and restore cylinder heads using the latest equipment and standards.
Case Savers
Repair damaged and worn threads in the magnesium case with the latest insert technology.
Balance
Balance rotating assemblies to motorsport standards ensuring smooth and reliable engine performance.
Cylinder Honing
Cylinders are honed using the latest CNC Honing Center providing round and accurate bore finish.