Comp Cams K35-300-8
Instruction Manual
COMP Cams K35-300-8 Cam and Lifter Kit
Model: K35-300-8
1. Product Overview
This manual provides essential information for the installation, operation, and maintenance of your COMP Cams K35-300-8 Cam and Lifter Kit. This kit is designed for optimal engine performance and durability.
Key Features:
- Competition Cams trusted industry leader components.
- Backed by manufacturer's warranty for assurance.
- Engineered for good performance characteristics.
2. What's in the Box
Upon opening the package, please verify that all components listed below are present and undamaged:
- Camshaft
- Lifters
- Valve Springs
- Retainers
- Valve Locks
- Valve Stem Seals
- Timing Chain Set
- Assembly Lube
- Decals
- Instructions (this manual)
Figure 1: Contents of the COMP Cams K35-300-8 Cam and Lifter Kit. This image displays all the components included in the kit, such as the camshaft, lifters, valve springs, retainers, valve locks, valve stem seals, timing chain set, and assembly lube, laid out on a white background.
3. Setup and Installation
Installation of a camshaft and lifter kit requires specialized tools and automotive knowledge. It is highly recommended that installation be performed by a certified professional. Refer to your vehicle's service manual for specific engine disassembly and reassembly procedures.
- Preparation: Ensure the engine is clean and free of debris. Gather all necessary tools and replacement gaskets.
- Engine Disassembly: Carefully remove components obstructing access to the camshaft, including the timing cover, timing chain, and old camshaft/lifters.
- New Component Installation: Apply the provided assembly lube generously to the camshaft lobes and lifter bases. Install the new camshaft, ensuring it slides smoothly into the block. Install new lifters into their bores.
- Valve Train Assembly: Install the new valve springs, retainers, and valve locks. Ensure valve stem seals are properly seated.
- Timing Chain Set Installation: Install the new timing chain and sprockets, aligning timing marks according to your engine's specifications.
- Reassembly: Reinstall all removed components, ensuring proper torque specifications are met for all fasteners. Replace all gaskets and seals.
- Initial Engine Start-up: Follow manufacturer's recommendations for initial engine break-in, especially for flat tappet camshafts, to ensure proper lifter seating and prevent premature wear.
4. Operating Considerations
After installation, proper engine operation is crucial for the longevity of your new cam and lifter kit.
- Break-in Procedure: Adhere strictly to the camshaft break-in procedure outlined by COMP Cams or your engine builder. This typically involves running the engine at varying RPMs (above idle) for a specified period to properly seat the lifters.
- Oil Requirements: Use engine oil with adequate ZDDP (Zinc Dialkyldithiophosphate) content, especially for flat tappet camshafts, to prevent premature wear. Consult COMP Cams recommendations for specific oil types.
- Engine Tuning: Your engine's fuel and ignition timing may require adjustment to optimize performance with the new camshaft. Professional tuning is recommended.
- Regular Monitoring: Pay attention to engine sounds, oil pressure, and temperature. Any unusual changes should be investigated promptly.
5. Maintenance
Regular maintenance ensures the continued performance and durability of your COMP Cams components.
- Oil Changes: Perform regular oil and filter changes using recommended oil types and viscosity.
- Valve Lash Adjustment: For adjustable valve trains, periodically check and adjust valve lash according to engine specifications.
- Timing Chain Inspection: During other engine maintenance, inspect the timing chain for excessive slack or wear.
- General Engine Health: Maintain overall engine health, including cooling system, ignition system, and fuel system, as these impact valve train longevity.
6. Troubleshooting
| Symptom | Possible Cause | Solution |
|---|---|---|
| Excessive Valve Train Noise | Improper valve lash, worn lifters, inadequate oil pressure, incorrect spring pressure. | Check valve lash, inspect lifters, verify oil pressure, test valve spring pressure. |
| Poor Engine Performance (after installation) | Incorrect timing, improper tuning, vacuum leaks, damaged components. | Verify timing marks, perform engine tuning, check for vacuum leaks, inspect all new components. |
| Premature Cam/Lifter Wear | Improper break-in, insufficient ZDDP in oil, incorrect spring pressure, manufacturing defect. | Ensure proper break-in, use recommended oil, verify spring pressure, contact manufacturer if defect suspected. |
7. Specifications
| Attribute | Value |
|---|---|
| Manufacturer | COMP Cams |
| Brand | Comp Cams |
| Model Number | K35-300-8 |
| Item Weight | 27.8 pounds |
| Product Dimensions | 26 x 10.5 x 5 inches |
| Manufacturer Part Number | K35-300-8 |
| Special Features | Air Freight Prohibited, Ltl Freight Required, Not Carb Approved |
| Date First Available | February 9, 2009 |
8. Warranty Information
This COMP Cams product is backed by the manufacturer's warranty. For specific details regarding warranty coverage, terms, and conditions, please refer to the official warranty documentation included with your purchase or visit the COMP Cams official website.
Note: Improper installation, misuse, or failure to follow recommended break-in and maintenance procedures may void the warranty.
9. Customer Support
For technical assistance, installation questions, or warranty claims, please contact COMP Cams customer support directly.
Contact Information:
- Website: www.compcams.com (Please check the official website for the most current contact details.)
- Phone: Refer to the official website for phone numbers.
- Email: Refer to the official website for email contact.
When contacting support, please have your product model number (K35-300-8) and purchase information readily available.
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