Ignition Contact Set Guide for the 1937 Packard Model 115-C
Keep your classic Packard's spark strong and reliable by understanding its ignition contact set.
- The ignition contact set (points) is a routine maintenance item on a 1937 Packard 115-C.
- Always replace the condenser at the same time as the points to ensure system longevity.
- Setting the correct point gap (.020") and dwell angle (36°) is critical for engine performance.
- Standard Ignition is a reliable aftermarket brand for this vintage application.
Understanding the Ignition System in Your Classic Packard
The 1937 Packard 115-C uses a traditional Kettering-style ignition system. Unlike modern cars with complex electronics, your Packard relies on this durable, mechanical set of points to time the spark. While robust, the points are a wear item, meaning they require periodic inspection and replacement as part of regular maintenance to keep the engine in top tune.
Symptoms of a Failing Ignition Contact Set
A worn or failing set of points will give you clues that it's time for a replacement. Because this system is purely mechanical, it usually degrades over time rather than failing suddenly. Look out for these signs:
- Hard Starting: The engine cranks but struggles to fire up, or won't start at all. This happens when the points are too worn, pitted, or misaligned to create a clean electrical break.
- Engine Misfires: The engine stumbles, runs rough, or hesitates during acceleration. This can be caused by burned or uneven contact surfaces on the points, leading to an inconsistent spark.
- Poor Performance and Power Loss: A weak or erratic spark means the fuel isn't burning efficiently, robbing your Packard of power and making it feel sluggish.
- Backfiring: Incorrect timing from worn points can cause unburnt fuel to ignite in the exhaust, resulting in a loud pop or bang.
Visually inspect the points by removing the distributor cap. If the contact surfaces look blackened, pitted, or burned, they need to be replaced.
Pro Tip: Replace the Condenser, Too
The condenser (or capacitor) works with the points to prevent excessive arcing and ensure a strong spark. It is highly recommended to replace the condenser every time you replace the ignition contact set. A failing condenser can quickly destroy a new set of points.
Choosing the Right Aftermarket Part
For a 1937 vehicle, new original equipment (OEM) parts are no longer manufactured. The market consists of New Old Stock (NOS) parts, which are rare and expensive, and new aftermarket parts. High-quality aftermarket parts are the most common and practical choice for keeping these classics on the road.
Standard Ignition (Standard Motor Products): This is a well-established and trusted brand in the North American aftermarket. They offer reliable ignition components for a huge range of vehicles, including vintage applications like the Packard 115-C. Standard Ignition and its premium line, Blue Streak, are known for quality materials and proper fit, making them a solid choice for your vehicle.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Standard Ignition) | $22.84 - $27.65 |
| Shop Labor for Installation | $75 - $150 |
Frequently Asked Questions (FAQ)
How often should I replace the ignition points on my Packard?
For a classic car that sees regular use, inspecting the points annually is a good practice. Replacement is typically needed every 10,000 to 15,000 miles, or sooner if you notice performance issues. For a car that is driven infrequently, the points can still degrade over time due to corrosion.
What tools are needed to replace the ignition contact set?
You will need basic hand tools like screwdrivers and wrenches, a feeler gauge to set the point gap, and ideally, a dwell meter to fine-tune the setting. A timing light is also necessary because changing the point gap will alter the ignition timing.
What is the correct point gap and dwell angle for a 1937 Packard 115-C?
The 1937 Packard 115-C with its 6-cylinder engine and Delco distributor requires a specific setup. The point gap should be set to .020 inches. The dwell angle, which is a more accurate measurement of the time the points are closed, should be 36 degrees. Always verify with a vehicle-specific service manual if possible.
Can I convert to an electronic ignition?
Yes, electronic ignition conversion kits are available for many classic cars, including Packards. These kits replace the points and condenser with a solid-state module, reducing maintenance. However, a properly maintained points system is very reliable and keeps the car original. Some owners prefer the simplicity and ease of roadside repair that points offer.
Technical Specifications
Distributor Make: Delco. Point Gap: 0.020 inches. Dwell Angle: 36 degrees.
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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.