Service & Tuning
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How to Read Spark Plugs
Being able to "read" a spark plug can be a valuable tuning aid. By examining the insulator firing nose color, an experienced engine tuner can determine a great deal about the engine's overall operating condition. In general, a light tan/gray color tells you that the spark plug is operating at...
Before You Touch the Carb
The secret to understanding the critical nature of Weber carb setup is the idle circuit — referred to as the low-speed circuit by Weber. This circuit is responsible for 80% of the driving operation. A properly set up Weber should give an improvement in fuel economy...
Overview
Triple Weber DCOE sidedraft carburetors offer an unparalleled induction experience, with throttle response and mid-range torque that is second to none. The first thing most people notice when they go to multiple Webers — beyond performance and appearance — is the ability to finely...
Being able to "read" a spark plug can be a valuable tuning aid. By examining the insulator firing nose color, an experienced engine tuner can determine a great deal about the engine's overall operating condition.
In general, a light tan/gray color tells you that the spark plug is operating at...
The single most important factor to be considered in selecting the proper compression (top) ring face coating material is the service requirements the engine will be operated under. Will the engine be subjected to unusual speed or load (high temp conditions), stop and go short trip driving...
The most common items over looked during assembly and installation of a rebuilt motor, are the motor mounts, transmission mounts, and the harmonic damper (balancer). Motor mounts are commonly bonded together using a variety of rubber compounds, while most OEM dampers utilize an elastomer...
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...