Ignition Contact Set Guide for the 1941-1947 GMC CCV100
Keep your classic GMC's engine firing correctly with a reliable new set of ignition points.
- The ignition contact set (points) is a normal wear-and-tear part on a 1941-1947 GMC CCV100 and requires regular inspection.
- Symptoms of failure include hard starting, rough running, misfires, and stalling.
- Always replace the ignition condenser at the same time as the contact set for best results.
- Standard Ignition is a reputable aftermarket brand for these vintage components.
Understanding the Ignition Contact Set in Your GMC CCV100
The ignition contact set, or "points," is a fundamental part of your truck's classic ignition system. Located inside the distributor, these points act as a fast-switching mechanical contact that controls when the ignition coil releases its energy. For a 1941-1947 GMC truck, this technology was standard. Unlike modern cars, these points are a wear item that requires periodic inspection and replacement to keep the engine running smoothly.
Symptoms of a Failing Ignition Contact Set
When ignition points start to wear out, they can cause a range of noticeable engine problems. The contacts can become pitted, burned, or misaligned, leading to a weak or inconsistent spark. Common signs include:
- Difficulty Starting: A weak or non-existent spark makes it hard for the engine to fire up.
- Engine Misfires: Worn points can cause an inconsistent spark, leading to rough running, stuttering during acceleration, and a shaky idle.
- Stalling: The engine may stall, especially at idle or when coming to a stop.
- Backfiring: If the condenser connected to the points fails, it can cause the engine to backfire.
Points are a Maintenance Item
Remember that on a vehicle from this era, ignition points are not a "fail and replace" part but a regular maintenance item. They should be checked during every major tune-up and replaced as needed. Their lifespan is much shorter than a modern electronic ignition component.
Choosing the Right Aftermarket Ignition Contact Set
For a vintage truck like the CCV100, Original Equipment Manufacturer (OEM) parts from GMC are no longer produced. All available new parts are from aftermarket manufacturers. The key is to choose a brand with a long history of quality.
Brand Spotlight: Standard Ignition
Standard Ignition, a brand of Standard Motor Products (SMP), has been a major manufacturer of ignition parts for decades. For American-built vehicles from this era, their quality is generally considered to be very good. Forum discussions among classic car owners often point to Standard as a reliable choice for ignition components like points and condensers. Given the limited options for such a specific vintage part, Standard Ignition is a trusted and widely available choice.
Always Replace the Condenser
The ignition condenser is a small capacitor that works with the points to prevent them from arcing and burning out prematurely. It is highly recommended to replace the condenser every time you replace the ignition contact set. They are often sold together in a kit.
Replacement Costs for Your GMC CCV100
Replacing the ignition contact set is an affordable and straightforward job. Since new OEM parts are not available, you will be purchasing aftermarket parts.
| Part Type | Price Range |
|---|---|
| New Aftermarket (Standard Ignition) | $21.44 |
| New OEM | Not Available |
| Shop Labor | $100 - $150 |
Frequently Asked Questions (FAQ)
How often should I replace the ignition points?
Ignition points should be inspected at every tune-up interval. They are a wear item and typically require replacement every 10,000 to 15,000 miles, or sooner if you notice performance issues.
Is replacing the ignition contact set a DIY job?
Yes, for someone with basic mechanical skills, this is a very feasible DIY task. The main tools required are a screwdriver and a feeler gauge to set the point gap correctly. Setting the gap is the most critical step of the installation.
What is the "point gap" and why is it important?
The point gap is the small, specific distance between the contacts when they are fully open. This gap determines how long the coil has to build up a charge (known as dwell time). An incorrect gap will lead to poor engine timing, weak spark, and rough running.
Is Standard Ignition a good brand for my classic truck?
Yes, Standard Motor Products (SMP) has a long-standing reputation for making quality ignition components for American vehicles. For vintage applications like the GMC CCV100, it is considered a reliable and trusted aftermarket brand.
Technical Specifications
Mechanical ignition contact set for distributor-based ignition systems. The GMC CCV100 likely used a 228, 256, or 270 cubic inch inline-6 engine.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.