Dorman 14112
Dorman 14112 Flexplate Mounting Bolts Instruction Manual
1. Introduction
This manual provides essential information for the Dorman 14112 Flexplate Mounting Bolts. These bolts are designed as a direct replacement for original equipment hardware, ensuring proper fit and function in compatible automotive applications. Understanding the correct installation and usage procedures is crucial for the safe and effective operation of your vehicle's drivetrain.
2. Product Overview

Figure 1: Dorman 14112 Flexplate Mounting Bolts. The set includes two shorter, fully threaded bolts and two longer, partially threaded bolts, all featuring hex heads and a machined finish.
The Dorman 14112 set includes specific bolts engineered to secure the flexplate to the crankshaft or torque converter, depending on the vehicle's design. These components are critical for transmitting power from the engine to the transmission.
3. Installation Instructions
Installation of flexplate mounting bolts requires specialized knowledge and tools. It is highly recommended that this procedure be performed by a qualified automotive technician. Incorrect installation can lead to severe damage to the engine, transmission, or other drivetrain components, and may compromise vehicle safety.
- Preparation: Ensure the vehicle is safely lifted and supported. Disconnect the battery. Access the flexplate area according to your vehicle's specific service manual.
- Removal of Old Bolts: Carefully remove the existing flexplate mounting bolts. Inspect the flexplate and crankshaft/torque converter mounting surfaces for any damage or wear.
- Bolt Identification: The Dorman 14112 set may contain bolts of different lengths or thread types. Ensure you use the correct bolt for each specific mounting point as indicated in your vehicle's service manual.
- Installation: Install the new Dorman 14112 flexplate mounting bolts. It is critical to apply the correct torque specifications as outlined in your vehicle's manufacturer service manual. Use a calibrated torque wrench.
- Torque Sequence: Follow the manufacturer's recommended torque sequence (e.g., star pattern) to ensure even clamping force and prevent warping of the flexplate.
- Final Checks: After installation, re-check all connections and ensure no tools or debris are left in the work area. Reconnect the battery.
Important: Always refer to your vehicle's specific service manual for detailed, model-specific installation procedures and torque specifications. Failure to do so may result in component failure or injury.
4. Usage Considerations
These flexplate mounting bolts are designed for a single, proper installation. They are not intended for repeated removal and reinstallation, as this can compromise their integrity and torque retention capabilities. Ensure that the bolts are clean and free of debris or thread locker residue from previous applications before installation, unless new thread locker is specified by the vehicle manufacturer.
5. Maintenance
Flexplate mounting bolts typically do not require routine maintenance after correct installation. However, during any subsequent service involving the transmission or engine, it is advisable to visually inspect the bolts for signs of loosening, corrosion, or damage. If any issues are observed, consult a qualified technician for assessment and potential replacement.
6. Troubleshooting
If issues arise after the installation of flexplate mounting bolts, consider the following:
- Vibration or Noise: Excessive vibration or unusual noises from the drivetrain area after installation may indicate improper torque, incorrect bolt seating, or damage to the flexplate or other components.
- Fluid Leaks: While not directly related to the bolts themselves, improper installation can sometimes lead to misalignment or stress on seals, potentially causing fluid leaks.
- Engine Performance Issues: In rare cases, severe flexplate issues can affect engine balance or starting.
In any of these situations, it is crucial to cease vehicle operation and have the vehicle inspected by a professional automotive technician immediately. Do not attempt to diagnose or repair complex drivetrain issues without proper training and equipment.
7. Specifications
| Attribute | Detail |
|---|---|
| Brand | Dorman |
| Model Number | 14112 |
| Material | Carbon Steel |
| Thread Size | 3/8"-16 UNC |
| Exterior Finish | Machined |
| Manufacturer Grade | Grade 2 |
| Head Style | Hexagon Bolt, Hex Head |
| Thread Type | UNC |
| Thread Style | Right Hand |
| Item Hardness | Grade 2 |
| Item Weight | 5.6 ounces (packaging) |
| Product Dimensions | 1.4 x 3 x 4.7 inches (packaging) |
8. Warranty Information
Specific warranty details for Dorman products, including the 14112 Flexplate Mounting Bolts, are subject to Dorman's official warranty policy. Please refer to the official Dorman website or contact Dorman customer service directly for the most current and accurate warranty information. Retain your proof of purchase for any warranty claims.
9. Support and Contact
For technical assistance, product inquiries, or support regarding the Dorman 14112 Flexplate Mounting Bolts, please visit the official Dorman website or contact their customer support department. You can typically find contact information, FAQs, and additional resources on their official site.
- Dorman Official Website: www.dormanproducts.com
- Customer Service: Refer to the website for contact numbers or email forms.
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