Ignition Contact Set Guide for the 1963-1964 International C1200
Keep your classic International running strong by understanding, diagnosing, and replacing your ignition points.
- Failing ignition points cause distinct symptoms like no-start, rough running, stalling, and power loss.
- For this vintage truck, new aftermarket parts from a reputable brand like Standard Ignition are the best choice.
- Always replace the condenser when you replace the ignition contact set to ensure longevity and performance.
- Properly gapping the new points with a feeler gauge is the most critical step of the installation.
Diagnosing a Failing Ignition Contact Set
Ignition points are a wear item and require regular service. When they start to fail, the symptoms are often noticeable and can escalate quickly. Worn, pitted, or improperly gapped points can disrupt the timing and quality of the spark. Look for these common signs that your ignition contact set needs attention.
Common Failure Symptoms:
- Engine Will Not Start: This is a primary symptom. If the points are too burned, pitted, or misaligned, they can't properly trigger the ignition coil to create a spark. The engine will turn over but fail to fire.
- Rough Running and Misfiring: Worn or dirty points can cause an inconsistent spark, leading to engine misfires. This results in a shaky idle, hesitation during acceleration, and a general lack of smooth operation.
- Stalling: The engine may stall, especially at idle or when coming to a stop. This happens because worn points can't deliver a consistent spark at low RPMs.
- Reduced Power and Backfiring: A weak or intermittent spark leads to inefficient combustion. You may notice the truck feels sluggish, and unburnt fuel can sometimes ignite in the exhaust, causing a backfire.
Choosing the Right Aftermarket Ignition Points
For a vintage truck like the C1200, new original equipment (OEM) parts from International Harvester are no longer manufactured. The most practical and reliable option is a new aftermarket part. Fortunately, reputable brands have been making quality ignition components for these vehicles for decades.
Standard Ignition (Blue Streak) is a well-regarded brand for classic American vehicles. Forum discussions among classic truck and tractor owners often recommend Standard (including their premium Blue Streak line) and NAPA's Echlin brand (which is also often supplied by Standard Ignition) for their reliability and proper fit. For a vehicle from this era, a quality aftermarket part from a known manufacturer like Standard is often equivalent to or exceeds the quality of New Old Stock (NOS) parts, which can degrade over time, especially condensers.
Estimated Part & Labor Costs
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Ignition Contact Set | $18.51 - $37.15 |
| Shop Labor | $100 - $200 |
Pro Tip: It is highly recommended to replace the ignition condenser at the same time as the contact set. The condenser absorbs excess voltage to prevent the points from arcing and burning out prematurely. Most ignition tune-up kits for this truck will include both components.
Frequently Asked Questions (FAQ)
How often do I need to replace my ignition points?
For a vehicle with a points-style ignition, it's good practice to inspect and adjust the points at every major tune-up, or roughly every 10,000-12,000 miles. The rubbing block on the points wears down, which closes the gap and retards ignition timing. They typically need replacement every 1-2 years depending on mileage and use.
What tools do I need to replace the ignition contact set?
The job requires basic hand tools like a screwdriver and wrenches. The most important special tool is a feeler gauge. This is used to set the correct gap on the new points, which is critical for proper engine timing and performance. A small amount of distributor cam lubricant is also 🎬 See a step-by-step demonstration of changing distributor points. necessary.
What is the correct point gap for my International C1200?
The correct point gap is critical. For International V8 engines (like the 266, 304, 345) using a Holley distributor, a common 🎬 Learn how to install points on an International V8. point gap setting is 0.019 inches. However, you should always verify the specification for your specific engine and distributor combination, as different distributors may have been used.
Should I convert to an electronic ignition?
Many owners of classic trucks choose to replace their points and condenser system with an electronic ignition conversion kit (like those from Pertronix). These kits eliminate the need for regular point adjustment and can provide a more consistent spark. However, a properly maintained original points system is very reliable. This guide focuses on maintaining the stock system with a new contact set.
Helpful Videos
Technical Specifications
Distributor type: Typically a Holley distributor. Point Gap: Varies by distributor, but a common setting is 0.019 inches. Always verify for your specific setup.
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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.