Ignition Coil Guide for the 1950 Packard Standard Eight
Keep your classic Packard's straight-eight engine running smoothly with the right ignition coil.
- Your 1950 Packard requires a specific 6-volt ignition coil; a 12-volt coil will not work correctly.
- Symptoms of failure often appear when the engine is hot, such as stalling or misfiring.
- Standard Ignition (SMP) is a highly-regarded brand for classic car ignition components, often preferred over budget options.
- Replacement is a simple, DIY-friendly task that requires basic tools and less than an hour.
Signs of a Failing Ignition Coil
An ignition coil on a classic car like the 1950 Packard doesn't have a computer to tell you it's failing. You have to rely on physical symptoms. A bad coil often fails when it gets hot from the engine running. It might work fine when the engine is cold, but cause problems after a drive.
Common Symptoms:
- Hard Starting or No Start: The engine cranks but won't fire up, or takes a long time to start. This can happen if the coil isn't producing enough voltage for a spark.
- Engine Misfires: The engine may stumble or hesitate, especially under load or at higher speeds. A weak spark can cause incomplete combustion in the cylinders.
- Stalling: The engine may stall unexpectedly, particularly after it has warmed up. This can be a classic sign of an ignition coil breaking down internally when hot.
- Backfiring: Unburnt fuel can enter the exhaust system and ignite, causing a backfire. This can point to an inconsistent spark from a failing coil.
- Visible Damage: Look for cracks in the coil's housing, burn marks, or oil leaking from the unit.
Choosing the Right Aftermarket Ignition Coil
For a vintage vehicle like the 1950 Packard, "OEM" parts mean finding New Old Stock (NOS) Packard parts, which are extremely rare and expensive. Aftermarket parts are the most practical and common choice for keeping these cars on the road. The key is to choose a quality replacement that matches the original specifications, especially the 6-volt rating.
Brand Reputations: Spectra vs. Standard Ignition
When shopping for a new coil, you'll likely encounter these two brands:
- Standard Ignition (Standard Motor Products): Often considered a top-tier replacement part brand, Standard Motor Products (SMP) has been around for a very long time. They are known for making parts that meet or sometimes exceed original quality. For a classic vehicle where reliability is key, Standard is generally viewed as a very dependable choice.
- Spectra: Spectra Premium is known for producing a wide variety of aftermarket parts, often at a lower price point. While they offer parts for many classic cars, some owner experiences suggest their quality can be inconsistent compared to more established ignition brands. For a critical component like an ignition coil, some owners prefer to spend a little more for a brand with a stronger reputation for durability.
Pro Tip: Your 1950 Packard has a simple, robust ignition system. A quality coil from a reputable brand like Standard Ignition is a sound investment in your car's reliability. Given the small price difference, it's often worth choosing the part with the better long-term reputation.
Replacement Cost
Replacing the ignition coil on a 1950 Packard is a straightforward job. The part itself is affordable, and labor costs are low due to the easy access and simple design.
| Part Type | Price Range |
|---|---|
| New Aftermarket Ignition Coil | $28.62 - $38.58 |
| Shop Labor | $50 - $100 |
Frequently Asked Questions (FAQ)
Do I need a special 6-volt coil for my Packard?
Yes, absolutely. Your 1950 Packard uses a 6-volt electrical system. You must use an ignition coil designed for a 6-volt system. Using a 12-volt coil will result in a very weak spark and poor engine performance.
Can I replace the ignition coil myself?
Yes, this is a very DIY-friendly job for most owners. The coil is typically mounted on the engine or firewall with a simple bracket and has only a few wire connections. The job usually requires only basic hand tools and can be completed in under an hour.
Are there any recalls or technical bulletins for my Packard's ignition coil?
No, there are no modern NHTSA recalls or Technical Service Bulletins (TSBs) for a vehicle of this age. Troubleshooting is based on classic diagnostic techniques and community knowledge from fellow Packard owners.
What are the primary and secondary resistance specs for a 6-volt coil?
While specifications can vary slightly, a good 6-volt coil should generally have a primary resistance between 1.2 and 1.6 ohms. The secondary resistance should be much higher, typically in the range of 6,000 to 10,000 ohms. Testing resistance with a multimeter is a good way to check a coil's condition.
Technical Specifications
Voltage: 6-Volt Primary Resistance: ~1.43 - 1.58 Ohms Secondary Resistance: ~6,000 - 10,000 Ohms Terminal Type: Screw Ground: Can be used for positive or negative ground systems
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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.