Ignition Contact Set Guide for the 1946-1954 Studebaker Taxi
Keep your classic Studebaker's ignition system in top shape by understanding its most critical tune-up part.
- The ignition contact set (points) is a normal wear item that requires regular inspection and replacement.
- Always replace the condenser at the same time as the points to prevent premature failure of the new set.
- Properly gapping the new points is critical for engine performance; a common gap for Studebaker 6-cylinders is .020 inches.
- Symptoms of failure include hard starting, rough idle, misfiring, and backfiring.
Understanding the Ignition Contact Set in Your Studebaker Taxi
The ignition contact set, or points, is a fundamental part of your 1946-1954 Studebaker Taxi's ignition system. Unlike modern cars with electronic ignition, your classic Studebaker relies on this mechanical set of contacts to time the spark that ignites the fuel in the engine. The points work with the condenser to control the ignition coil's charging and discharging. Because the points are a mechanical part with a rubbing block that rides on the distributor cam, they wear down over time and are considered a regular maintenance item, just like oil and filters.
Symptoms of a Failing Ignition Contact Set
When your ignition points start to wear out, they can cause several noticeable problems. The gap between the contacts is critical, and as the rubbing block wears, this gap changes, affecting engine timing and performance. Common symptoms include:
- Hard Starting or No Start: Worn or misaligned points can prevent the coil from producing a strong enough spark to start the engine. The engine may turn over but fail to fire.
- Rough Idle and Poor Performance: If the points are pitted, burned, or incorrectly gapped, the engine can run rough, misfire, and hesitate during acceleration.
- Engine Stalling: As points wear, they can make inconsistent contact, leading to stalling, especially when the engine is hot.
A Note on Condensers
The ignition condenser is a small capacitor that works with the points. Its job is to prevent a large arc from forming across the points as they open, which protects them from burning up quickly. It is highly recommended to replace the condenser every time you replace the ignition contact set. A faulty condenser will cause new points to fail very quickly.
Choosing the Right Aftermarket Ignition Contact Set
Original Studebaker-branded ignition parts are no longer manufactured. However, quality aftermarket replacements are available that meet or exceed original specifications. For this specific part, the primary consideration is build quality.
Standard Ignition (Standard Motor Products): Standard is a well-established brand that produces reliable replacement parts for classic vehicles. Their T-Series points are designed to meet original specifications and are a trusted choice for regular tune-ups. They use quality materials, including one-piece nylon rubbing blocks on some designs, to ensure durability and a long service life.
Since OEM parts are not an option, the focus is on choosing a high-quality aftermarket part. Standard Ignition provides a reliable, vehicle-specific fit that ensures proper performance.
Pro Tip: Check Your Distributor
Before installing new points, check the distributor shaft for side-to-side play. Worn bushings in the distributor can cause the point gap to change as the engine runs, leading to poor performance even with new parts. Also, ensure the small wire connecting the points to the distributor housing has a good connection and is not frayed.
Ignition Contact Set Cost for 1946-1954 Studebaker Taxi
| Part Type | Price Range |
|---|---|
| New Aftermarket (Standard Ignition) | $21.53 - $22.84 |
| Shop Labor | $50 - $100 |
| New OEM | Not Available |
Frequently Asked Questions
What is "setting the gap"?
Setting the gap refers to adjusting the maximum distance the points open. This is done with a feeler gauge when the point's rubbing block is on the highest point of the distributor cam lobe. For many Studebaker 6-cylinder engines of this era, a common point gap is .020 inches, but always verify the specification for your specific distributor. An incorrect gap will alter the ignition timing and dwell angle, hurting performance.
How often should I replace my ignition points?
For a vehicle that is driven regularly, ignition points were typically checked and adjusted every few thousand miles and replaced as part of an annual tune-up or every 10,000-12,000 miles. For a classic car that sees less use, it's good practice to inspect them annually for pitting or wear and replace as needed.
Can I replace the ignition points myself?
Yes, replacing the ignition contact set is a common DIY task for classic car owners. It requires basic hand tools, a feeler gauge, and a bit of patience. The distributor cap is removed, and the points are located inside. It involves removing a couple of small screws and a wire, then installing the new set and adjusting the gap.
Should I convert to an electronic ignition?
Many owners of classic cars choose to replace the points and condenser with an electronic ignition conversion kit. 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. Some owners prefer the originality and ease of roadside repair of a points-based system, as electronic modules can fail without warning.
Technical Specifications
OEM Part Numbers: 1550273 1555502
Point Gap: 0.020" (for Autolite distributors). Always verify with your vehicle's service manual.
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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.