Porting For Performance The Science of Horsepower
Air flow makes horsepower. The more cubic feet per minute (cfm) of air that flows through the intake ports and into the combustion chambers, the more horsepower the engine makes. A larger carburetor or throttle body, bigger valves, a high-lift, long-duration camshaft, three-angle valve job and exhaust headers are all performance enhancements that increase airflow
Back to Basics: Oil Pumps
Every engine requires a certain amount of oil flow to keep the bearings, camshaft, valvetrain and other moving parts lubricated. Oil forms a barrier that prevents metal-to-metal contact and reduces friction and wear. In the bearings, it forms a wedge that actually lifts and supports the crankshaft and camshaft as they rotate. Oil also serves
Engine Crack Detection Technology
It doesn’t matter if you’re rebuilding a high mileage engine and reusing salvaged components or using brand new parts right out of the box – any highly stressed component or casting that has to withstand high loads, temperatures and/or pressures should always be inspected to make sure it is free from cracks or other defects
Cams, Chains And Gears
Since the earliest days of the internal combustion engine, a crankshaft-driven camshaft has been used to operate the engine
Back to Basics: Gasket Installation Tips and Tricks
The installation of gaskets is one of the most important aspects of rebuilding an engine. Gaskets provide a seal between mating surfaces so oil, coolant, vacuum and pressure don
Back to Basics: Bearings
Bearings are one of the most important parts inside an engine, so it
Diagnosing Oil Pressure Problems
Every engine requires a certain amount of oil flow to keep the bearings, camshaft, valvetrain and other moving parts lubricated. Oil forms a barrier that prevents metal-to-metal contact and reduces friction and wear within the engine. In the bearings, it forms a wedge that actually lifts and supports the crankshaft and camshaft as they rotate.
Engine Cylinder Bore Surface Finishes
What’s the best type of cylinder bore finish for today’s engines? Most would say it’s a finish that allows the rings to seat quickly and completely so the engine doesn’t use oil. For many applications, that may mean a plateau finish. The surface finish must also meet the piston ring manufacturer’s specifications and have the
The Challenges of Rebuilding Late Model OHC Aluminum Heads
Take it apart. Put it together. Take it apart. Put it together. If taking apart and reassembling cylinder heads is eating up too much of your valuable shop time, keep reading. We have some tips on how to slash your disassembly/assembly labor costs, as well as other ways to streamline your OHC aluminum head rebuilding
Gaskets: Sealing Today’s Engines
As today
Rebuilding Today’s Cylinder Heads
Everybody wants to get ahead in the cylinder head rebuilding business
Understanding Today’s Machine Coolants
Many types of grinding and honing operations require the use of a "process fluid" for cooling and lubrication. Remanufacturing procedures such as crankshaft grinding and surface grinding generate a tremendous amount of heat and require a fluid primarily for cooling. Heat control is absolutely essential for a good finish and accurate tolerances. Use of a