Ignition Contact Set Guide for the 1966-1967 Checker Aerobus
Keep your classic Aerobus running smoothly by understanding how to spot and replace a failing ignition contact set.
- The 1966-67 Aerobus uses a Chevrolet V8 with a points-style ignition that requires periodic maintenance.
- Symptoms of failure include rough running, stalling, and a no-start condition.
- Standard Ignition is a reputable aftermarket brand for this part.
- Always replace the condenser at the same time as the ignition contact set for best results.
Understanding the Ignition System in Your Aerobus
The 1966-1967 Checker Aerobus is a unique piece of automotive history. During these years, the Aerobus was equipped with a Chevrolet 327 cubic inch V8 engine. This engine uses a traditional ignition system with a distributor, ignition points (the contact set), and a condenser. Unlike modern cars with electronic ignition, these components require regular inspection and maintenance. The points are a wear item, meaning they will eventually need to be replaced as part of a standard tune-up.
Symptoms of a Failing Ignition Contact Set
When the ignition points start to wear out, they can cause a range of noticeable engine problems. 🎬 Watch this guide on classic car symptoms of bad ignition points. The surfaces of the points can become pitted, burned, or misaligned, leading to a weak or inconsistent spark. This can make your Aerobus difficult to start or cause it to not start at all.
- Engine Misfires and Rough Running: Worn points can cause an inconsistent spark, leading to engine misfires, a shaky idle, and overall rough performance.
- Difficulty Starting: A common first sign of bad points is an engine that cranks but struggles to fire up or won't start at all.
- Stalling: The engine may stall, especially at idle or when coming to a stop, because the weak spark can't keep it running consistently.
- Loss of Power: You might feel the vehicle is sluggish or hesitates during acceleration because the cylinders are not firing efficiently.
- Backfiring: If the condenser, which works with the points, is failing, it can cause the engine to backfire.
Can I Drive with Bad Ignition Points?
It is not recommended. Driving with failing ignition points can leave you stranded if the engine fails to start or stalls in traffic. The rough running and misfires can also lead to unburnt fuel entering the exhaust, which is inefficient and can cause other issues over time.
Choosing a New Aftermarket Ignition Contact Set
For a vehicle as old as the 1966-1967 Aerobus, finding original equipment manufacturer (OEM) parts is nearly impossible. The market for these components is served exclusively by aftermarket manufacturers. Fortunately, the ignition system used in the Chevrolet V8 engine is common, and parts are readily available.
Brand Spotlight: Standard Ignition
Standard Motor Products (SMP), often sold under the brand name Standard Ignition or Blue Streak, is a well-known and long-standing aftermarket manufacturer. For decades, they have been a primary supplier of ignition components. Forum discussions among classic car and tractor owners often point to Standard Ignition (and its premium line, Blue Streak) as a reliable choice for quality points. While like many companies, manufacturing locations can vary, Standard is generally considered a quality brand for aftermarket ignition parts.
Pro Tip: Replace the Condenser Too
The condenser is a small capacitor that works with the points to prevent them from arcing and burning out prematurely. It's inexpensive and located right next to the points in the distributor. It is always best practice to replace the condenser at the same time you replace the ignition contact set.
Estimated Costs for Replacement
Replacing an ignition contact set is a relatively inexpensive job. The main cost is labor if you have it done professionally.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Standard Ignition) | $21.44 |
| Shop Labor | $90 - $150 |
Note: Costs are estimates and can vary based on location and shop rates.
Frequently Asked Questions (FAQ)
What are ignition points?
Ignition points, also called a contact set, are a mechanical switch inside the distributor of older cars like the Aerobus. They open and close to trigger the ignition coil to create a spark for the engine.
Where are the ignition points located?
You can find the ignition points inside the distributor. You will need to remove the distributor cap and rotor to see and access them.
How often should I replace the ignition points?
For a classic vehicle, it's good practice to inspect the points during any major tune-up or annually. Replacement frequency depends on mileage, but they are a common wear item that will need to be changed periodically to maintain performance.
Are there any recalls for the 1966-1967 Checker Aerobus ignition?
A search of the National Highway Traffic Safety Administration (NHTSA) database did not find any recalls specifically related to the ignition contact set for the 1966-1967 Checker Aerobus.
Helpful Videos
Technical Specifications
This is a mechanical contact set for a points-style ignition system, typically used in a Chevrolet V8 distributor from the era.
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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.