Sierra International 182283 Shim Set Review

Let’s Dive into Sierra International 182283 Shim Set

The Sierra International 182283 Shim Set might not sound like the most exciting piece of gear, but trust me, for anyone who wrenches on Mercruiser stern drives, this little kit can be a lifesaver. These shims are essential for properly setting clearances and ensuring the longevity of your expensive marine equipment, and Sierra promises quality that meets or exceeds OEM standards. I’ll be sharing my experience with this set, diving into its usefulness and whether it lives up to the hype.

What brought me to this product? I’ve been dealing with a slightly noisy Mercruiser Alpha One Gen II outdrive on my project boat, and suspecting improper gear lash, I knew shimming was in my future. This Sierra International 182283 Shim Set seemed like the perfect starting point for tackling the job, and much cheaper than buying individual shims from the dealer.

Upon receiving the set, I was immediately impressed by the organized packaging; each shim thickness was clearly labeled and separated. The shims themselves appeared to be well-stamped and free of burrs, giving me confidence in their accuracy. Build quality seems good, they feel like they will get the job done.

I considered a few other options, like individual shims from Mercruiser directly. I chose the Sierra International 182283 Shim Set due to its comprehensive range of thicknesses (0.002″, 0.003″, 0.005″, and 0.010″) and the assurance of Sierra’s reputation. Having multiple shims on hand allows flexibility during adjustments.

My first impression was one of cautious optimism; I was excited to finally address the noise issue in my outdrive, but also aware that shimming can be a fiddly process. The quality of the Sierra International 182283 Shim Set gave me hope for a successful outcome.


Real-World Testing: Putting Sierra International 182283 Shim Set to the Test

First Use Experience

I tested the Sierra International 182283 Shim Set while overhauling the upper gearcase of my Mercruiser Alpha One Gen II outdrive in my garage. The weather was cool and dry, which made working with small parts much easier.

I followed the Mercruiser service manual closely, using the shims to adjust the pinion depth until the proper gear lash was achieved. The shims were easy to handle and insert, making the process relatively straightforward. I experienced no issues during the first attempt and shimming was surprisingly easy.

The only surprise was discovering how sensitive these adjustments are; even a 0.002″ shim made a noticeable difference in gear lash. However, I was able to find the perfect spacing thanks to the included shims.

Extended Use & Reliability

After several weeks of use (including about 50 hours on the water), the outdrive is running noticeably quieter and smoother. There are no signs of undue wear or increased noise, suggesting the shimming was successful and the Sierra shims are holding up well.

There’s not really any maintenance for the shims themselves. However, I will be checking the gear oil regularly to monitor for any signs of excessive wear. The shims are doing their job in allowing the gears to run smoothly.

Having previously dealt with gear noise issues on another outdrive (where I didn’t use shims), I can confidently say that using the Sierra International 182283 Shim Set made a significant improvement in the overall performance and longevity of my current outdrive. It has exceeded my expectations so far and made boating far more enjoyable!

Breaking Down the Features of Sierra International 182283 Shim Set

Specifications

  • Compatibility: Designed for Mercruiser stern drives. This ensures proper fitment and performance within Mercruiser outdrives.
  • Shim Thicknesses: Includes one each of 0.002″, 0.003″, 0.005″, and 0.010″ shims. These varying thicknesses provide the necessary granularity for precise adjustments.
  • Interchangeability: Interchangeable with GLM 23260 and Mercruiser Stern Drive 15-45691A1. This compatibility offers flexibility when sourcing parts.
  • Quality Standard: Each Sierra product meets or exceeds the original equipment part it replaces. This ensures reliability and longevity.

These specifications are critical because proper gear lash is essential for the life of the outdrive. Incorrect shimming can lead to premature wear, noise, and even catastrophic failure.

Performance & Functionality

The Sierra International 182283 Shim Set performs its job perfectly, allowing for precise adjustment of gear lash in Mercruiser stern drives. The included range of shim thicknesses provides the necessary flexibility to achieve optimal settings.

The only minor weakness might be the lack of even thinner shims (e.g., 0.001″) for ultra-precise adjustments in some rare cases. It meets all my current expectations, and I am very satisfied with the function.

Design & Ergonomics

The shims are stamped from a durable material. Each shim thickness is clearly marked for easy identification, assisting in the shimming process.

The shims are user-friendly; no special tools are required for installation beyond standard mechanic’s tools and a service manual. The clear markings and organization make the adjustment much smoother.

Durability & Maintenance

The shims themselves are made from a durable material designed to withstand the pressures and stresses within an outdrive gearcase. With proper installation and maintenance of the outdrive (regular gear oil changes), these shims should last for many years.

They are designed for long-term use with no special maintenance required. Routine checks of gear lash as part of regular outdrive maintenance are recommended.

Accessories and Customization Options

The Sierra International 182283 Shim Set is a standalone kit and doesn’t come with additional accessories. The purpose of shims are to fit in with the stock parts, so customization options are not common.

This kit is compatible with various Mercruiser Alpha One and Bravo series outdrives; refer to your service manual for specific applications. The versatility makes this shim kit a worthwhile investment.

Pros and Cons of Sierra International 182283 Shim Set

Pros

  • Comprehensive Range of Thicknesses: The kit includes 0.002″, 0.003″, 0.005″, and 0.010″ shims, offering versatility for precise adjustments.
  • High-Quality Construction: Sierra products are known for meeting or exceeding OEM standards, ensuring durability and reliability.
  • Easy to Use: The shims are clearly marked and easy to handle, simplifying the shimming process.
  • Cost-Effective: Purchasing this set is more affordable than buying individual shims from Mercruiser.
  • Improved Outdrive Performance: Proper shimming leads to quieter, smoother operation and extended gear life.

Cons

  • Lack of Ultra-Thin Shims: The kit does not include shims thinner than 0.002″, which may be needed for some ultra-precise adjustments.
  • Application Specific: Intended for Mercruiser stern drives only, limiting its versatility for other applications.


Who Should Buy Sierra International 182283 Shim Set?

The Sierra International 182283 Shim Set is perfect for boat owners who perform their own maintenance and repairs on Mercruiser stern drives. Anyone tackling an outdrive overhaul, or experiencing gear noise issues, will find this kit invaluable.

If you are not comfortable disassembling and reassembling an outdrive, or lack the necessary tools and service manual, this product isn’t for you. In those cases, it’s best to consult a qualified marine mechanic.

A must-have accessory would be a quality set of dial calipers for accurately measuring clearances. A comprehensive Mercruiser service manual is also essential for proper shimming procedures.

Conclusion on Sierra International 182283 Shim Set

The Sierra International 182283 Shim Set is an essential tool for anyone maintaining or repairing Mercruiser stern drives. The range of shim thicknesses, combined with Sierra’s quality reputation, makes this kit a worthwhile investment.

At $35.99, the price is more than justified considering the cost of individual shims and the potential damage caused by improper gear lash. It is a small price to pay for peace of mind on the water.

I wholeheartedly recommend the Sierra International 182283 Shim Set to any DIY boater or marine mechanic. Get your Sierra International 182283 Shim Set today and get your boat running like new!

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