First Impressions of Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines
As an outdoor and tactical gear specialist, I’ve spent years tinkering with engines, particularly in off-road vehicles and marine applications. The Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines promises to modernize older GM 4-cylinder engines, swapping out the traditional points-based ignition system for a more reliable and efficient electronic one. This caught my attention because I’ve seen firsthand the headaches caused by finicky points systems in vintage Jeeps and old fishing boats.
I was consistently plagued with issues on a vintage fishing boat powered by a GM 4-cylinder; points corroding in the damp marine environment, constant adjustments needed to maintain proper dwell, and the overall unreliability of the system nearly left me stranded more than once. The promise of a modern, electronic ignition, offering improved starting, smoother running, and reduced maintenance, sounded like the perfect solution. When I saw the Sierra International kit, I knew it was time to take the plunge.
Opening the box, I was immediately impressed with the apparent quality of the components. The distributor looked robust, the ignition coil felt substantial, and the spark plug wires appeared to be well-made. My initial thought was, “This looks like a well-engineered solution.”
Compared to a Pertronix Ignitor kit, which simply replaces the points and condenser, the Sierra International kit offered a complete electronic distributor, which I believed would be a more comprehensive upgrade. Other options like complete aftermarket EFI systems were far more expensive and complex to install. My hope was that this kit would strike the perfect balance between cost, ease of installation, and performance improvement. I was excited to get this installed and see if it lived up to my expectations.
Real-World Testing: Putting Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines to the Test
First Use Experience
I installed the Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines on that vintage fishing boat with the temperamental GM 4-cylinder. Installation was relatively straightforward, although a basic understanding of engine timing is definitely required. The instructions were clear, and all the necessary hardware was included.
Once installed, the difference was immediately noticeable. The engine started much easier, even after sitting for a week. The idle was smoother, and the engine seemed to run cleaner throughout the RPM range. No more fiddling with points in the middle of the lake!
Extended Use & Reliability
After a full season of fishing, the Sierra International kit has proven to be incredibly reliable. I’ve had absolutely zero ignition-related issues since the install. There’s no noticeable wear and tear on the components, even after constant exposure to the harsh marine environment.
The only maintenance required has been the occasional check of the spark plugs, which, thanks to the more consistent ignition, have remained clean and properly gapped. Compared to my previous experience with the points system, this kit has been a game-changer; it has vastly outperformed my expectations, and I now spend my time fishing instead of wrenching.
Breaking Down the Features of Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines
Specifications
The Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines is designed specifically for GM 4-cylinder engines that originally used a points-based ignition system. The kit includes the following components:
- 18-5435 Ignition Coil: This is a high-output coil designed to provide the necessary spark for the electronic ignition system, offering more consistent and powerful ignition.
- 18-5486-2 Electronic Distributor (Conventional Rotation): This distributor is the heart of the system; it replaces the original points-based distributor and provides a more accurate and reliable timing signal.
- 18-8800-1 Spark Plug Wire Set: These wires are designed to handle the higher energy output of the electronic ignition system and ensure a strong spark at the plugs.
These specifications are important because they represent a complete system upgrade, not just a partial fix. This ensures optimal performance and compatibility.
Performance & Functionality
The Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines dramatically improves the performance and functionality of older GM 4-cylinder engines. Starting is much easier, idling is smoother, and overall engine performance is more consistent. The kit completely eliminates the need for periodic points adjustments, freeing up time for other maintenance or just enjoying the vehicle or boat.
The only potential weakness I can identify is that installation requires some mechanical aptitude and a timing light. However, the benefits far outweigh this minor inconvenience. It definitely meets and exceeds my expectations.
Design & Ergonomics
The components of the Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines are well-built and appear to be durable. The distributor is made from high-quality materials and feels solid in hand. The design is straightforward and functional.
The installation process is relatively user-friendly, although, as mentioned before, some mechanical knowledge is required. There is a slight learning curve involved in setting the timing, but the instructions are clear and easy to follow.
Durability & Maintenance
Based on my experience, the Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines is built to last. After a full season of use, there are no signs of wear or degradation. Maintenance is minimal, primarily involving occasional spark plug checks.
The electronic components should last for many years without requiring any attention. This system should offer years of reliable service.
Accessories and Customization Options
The Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines comes as a complete kit and doesn’t necessarily require additional accessories. However, some users might consider upgrading to higher-performance spark plugs for even better performance. It is compatible with standard GM 4-cylinder engine components, so there are numerous options for customization and performance upgrades if desired.
Pros and Cons of Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines
Pros
- Dramatically Improved Starting: Engines start much easier, even in cold weather.
- Smoother Idle and Running: The engine runs smoother and more consistently throughout the RPM range.
- Eliminates Points Adjustments: No more fiddling with points, saving time and hassle.
- Increased Reliability: The electronic ignition system is far more reliable than the old points system.
- Easy Installation: Installation is relatively straightforward with clear instructions.
Cons
- May require professional assistance if you are not mechanically inclined and lack experience with engine timing.
- A timing light is needed for proper installation, which is an additional expense if you don’t already own one.
Who Should Buy Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines?
The Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines is perfect for anyone who owns a vehicle or boat with a GM 4-cylinder engine that originally used a points-based ignition system. This includes owners of vintage Jeeps, classic cars, and older boats. Anyone seeking improved reliability, performance, and reduced maintenance will benefit greatly from this kit.
Those who should skip this product are individuals with no mechanical experience and who are unwilling to seek professional assistance. Also, this kit is not compatible with engines other than GM 4-cylinder engines.
A must-have accessory for installation is a timing light. Upgrading to high-performance spark plugs may also be beneficial for some users.
Conclusion on Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines
The Sierra International 185518 Electronic Conversion Kit For Gm 4 Cylinder Engines is a fantastic upgrade for older GM 4-cylinder engines. It offers significant improvements in starting, running, and reliability while eliminating the need for constant points adjustments. The price is justified by the performance improvements and the time saved on maintenance.
I would highly recommend this kit to anyone looking to modernize their older GM 4-cylinder engine. If you are tired of dealing with the headaches of a points-based ignition system, this kit is the perfect solution. Upgrade your engine today and experience the benefits of modern electronic ignition!