C100 Cam Chain Tensioner Roller

Brand: Mortch Motor
Product Code: MIC100-6026

Product Viewed: 34

Availability: In Stock

Weight: 0.02kg

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C100 Cam Chain Tensioner Roller

🔧 Timing Chain Tensioner · Valve Train · Engine Component

For Moped, Cub, Dirty Bike & ATV · Fits 139FMB, 147FMD, 147FMF, 150FMG engines

📋 Product Overview

This is the C100 Cam Chain Tensioner Roller, a vital component of the engine's timing system. It is suitable for Mopeds, Cub series, Dirty Bikes, and ATVs, and fits engines including 139FMB, 147FMD, 147FMF, 150FMG, and similar models.

The cam chain tensioner roller is installed on the timing chain side, working together with the tensioner assembly. It provides consistent tension to the timing chain, preventing slack, vibration, or chain jump, ensuring precise synchronization between the crankshaft and camshaft. Manufactured from wear-resistant engineering plastic, it runs smoothly with low noise, making it an ideal replacement when the original roller is worn or damaged.

✨ Key Functions: Maintains chain tension · Prevents chain jump · Ensures precise timing · Quiet & smooth operation

📐 Specifications

Product Name

Cam Chain Tensioner Roller

Engine Application

139FMB / 147FMD / 147FMF / 150FMG

Material

High-strength Engineering Plastic

Position

Timing Chain Side · Tensioner Arm

Function

Automatic Chain Tension Adjustment

🔧 Compatible Engine Models

This cam chain tensioner roller fits the following engine models:

139FMB

147FMD

147FMF

150FMG

Engine Reference Information:

139FMB: 1P39FMB / 1P39QMB · 50cc-125cc universal engine
147FMD: 1P47FMD · 70cc-110cc engine
147FMF: 1P47FMF · 90cc-110cc engine
150FMG: 1P50FMG · 125cc-150cc engine

🛵 Compatible Vehicles

Mopeds - Various 50cc-150cc moped models
Cub Series - Honda Cub and clone models
Dirty Bikes - Small off-road motorcycles
ATVs - Small-engine quad bikes / kids ATVs
Other vehicles using 139FMB, 147FMD, 147FMF, 150FMG engines

📌 Compatibility Note: This C100 cam chain tensioner roller is suitable for the engine models listed above. Before purchasing, please verify your engine model matches.

⚙️ Importance of Tensioner Roller

🔗 Maintains Chain Tension

Provides consistent tension to prevent timing chain slack and vibration at high RPM.

⏱️ Ensures Precise Timing

Prevents chain jump, maintaining crankshaft-to-camshaft synchronization and avoiding valve-piston interference.

🔇 Reduces Operating Noise

Smooth roller surface minimize timing area noise.

🛡️ Extends Chain Life

Proper tension reduces abnormal wear on chain and sprockets, prolonging overall timing system life.

⚠️ Tensioner Roller Failure Symptoms: Unusual rattling or grinding noise from timing area, loose timing chain causing power loss, hard starting, or in severe cases, chain jump and valve damage. If these occur, inspect the tensioner roller and timing chain, and replace if necessary.

⚠️ Common Failure Symptoms

Unusual Noise: Rhythmic rubbing or knocking sound from the timing chain area.
Loose Chain: Timing chain appears slack upon inspection; tensioner roller fails to maintain proper tension.
Power Loss / Poor Acceleration: Incorrect timing leads to reduced engine performance.
Hard Starting / Rough Idle: Timing deviation affects ignition and valve overlap, causing unstable operation.
Roller Wear or Seizure: Visible wear on roller surface, does not spin smoothly, or excessive play.

If you experience these symptoms, inspect the cam chain tensioner roller and tensioner assembly, and replace if necessary.

✨ Product Features

OEM Design: Manufactured to original dimensions and structure for perfect fitment with tensioner arm and chain.
Wear-Resistant Roller: Made of high-strength, low-friction material with smooth surface to minimize chain wear.
Stable Tension Performance: Provides consistent support to the chain, preventing jump caused by insufficient tension.
Direct Replacement: Replaces worn or damaged original tensioner roller without modification.

🔧 Installation Tip

1. Replacing the cam chain tensioner roller requires removing the engine side cover and timing chain tensioner assembly; professional installation is recommended.
2. Clean the roller mounting surface and tensioner arm to remove any debris before installation.
3. Inspect the timing chain for elongation or wear; replace if necessary.
4. Ensure the roller is properly seated on the tensioner arm and tighten the bolt to the specified torque.
5. After installation, manually rotate the crankshaft several times to verify timing marks align and chain runs smoothly.
6. Start the engine and listen for any abnormal noise from the timing area to confirm proper operation.

⚠️ Important Notice: This is a C100 cam chain tensioner roller suitable for Mopeds, Cubs, Dirty Bikes, ATVs, and vehicles using 139FMB, 147FMD, 147FMF, 150FMG engines. Ensure the roller rotates freely and contacts the timing chain correctly during installation. Images are for reference only. The actual product may vary.

🔧 Compatibility Notice

Please verify that this part fits your specific vehicle model and year. Many vehicles share similar names but use different components depending on year or market region.
We strongly recommend cross-checking with your vehicle's owner's manual or contacting us for confirmation before placing your order.

📄 Product Disclaimer

Product images, measurements, and descriptions are for reference only. Slight variations in color or appearance may occur due to manufacturing batches or photography lighting—functional specifications remain identical to the ordered part.
Professional installation is mandatory. Mortch Motor assumes no liability for damages, injuries, or losses resulting from improper installation, misuse, unauthorized modification, or abnormal operation.

💰 Import Duties & Taxes

All listed prices EXCLUDE shipping costs, import duties, taxes, and customs clearance fees. These charges (if applicable) are determined and collected by your local customs authority and are solely the buyer's responsibility.
In case of return due to unpaid duties/taxes or refusal to clear customs, the buyer shall bear the original shipping cost, return shipping fees, and any associated administrative charges deducted from the refund.

📌 Order Confirmation: By completing your purchase, you acknowledge that you have read, understood, and agreed to all terms above. For any questions, please contact our support team prior to ordering.