C100 Valve Hole Cap

Brand: Mortch Motor
Product Code: MIC100-6004

Product Viewed: 294

Availability: In Stock

Weight: 0.02kg

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C100 Valve Cover (Valve Hole Cover)

🔧 Valve Cover · Valve Hole Cover · Engine Seal

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

📋 Product Overview

This is a C100 Valve Cover (Valve Hole Cover), an important sealing component for the engine's valve train. It is suitable for Mopeds, Cub series, Dirt Bikes, and ATVs, and fits engines including 139FMB, 147FMD, 147FMF, 150FMG, and similar models.

The valve cover is installed on the cylinder head side cover or top cover at the valve adjustment access point, sealing the valve adjustment passage to prevent oil leaks and keep contaminants out. Manufactured from high-quality aluminum alloy with a sealing ring, it offers excellent sealing performance and durability, making it an ideal replacement when the original cover is damaged, warped, or has poor sealing.

✨ Key Functions: Seals valve adjustment hole · Prevents oil leaks · Dust protection · Direct replacement

📐 Specifications

Product Name

C100 Valve Cover

Engine Application

139FMB / 147FMD / 147FMF / 150FMG

Material

Aluminum Alloy

Includes

Cover + Sealing Ring

🔧 Compatible Engine Models

This C100 valve cover 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
Dirt Bikes - Mini dirt bikes, off-road motorcycles
ATVs - Small-engine quad bikes / kids ATVs
Mini Moto / Pocket Bikes
Other vehicles using 139FMB, 147FMD, 147FMF, 150FMG engines

📌 Compatibility Note: This C100 valve cover is suitable for the engine models listed above. Before purchasing, please verify your engine model matches.

⚙️ Function of Valve Cover

🔧 Sealing Function

Seals the valve adjustment hole, preventing engine oil from leaking out of the valve chamber.

🛡️ Dust Protection

Prevents dust, dirt, and debris from entering the valve chamber, protecting the valve train components.

🔩 Service Access

Removal allows valve clearance adjustment without removing the entire cylinder head cover.

💧 Pressure Regulation

Helps maintain internal engine pressure balance and reduces oil splashing.

💡 Important Note: The valve cover is typically located on the cylinder head side cover or top cover and must be removed when adjusting valve clearance. Ensure the sealing ring is properly installed to prevent oil leaks.

⚠️ Valve Cover Failure Symptoms

Oil Leakage: Visible oil seepage around the valve cover, typically with oil stains visible at the edges.
Deteriorated Sealing Ring: Rubber sealing ring hardened, cracked, or deformed, losing sealing ability.
Warped Cover: Cover deformed due to overheating or improper installation, preventing proper sealing.
Loose Mounting Screws: Screws loose, causing poor sealing, oil leaks, or noise.
Increased Oil Consumption: Poor sealing leads to oil leaks, noticeably reduced oil level.
Contaminant Entry: Poor sealing allows dust and debris into the valve chamber, accelerating internal wear.

If you experience these symptoms, inspect the valve cover and sealing ring, and replace if necessary.

✨ Product Features

OEM Specifications: Manufactured to original specifications for perfect fitment.
Aluminum Alloy Construction: Cast from high-quality aluminum alloy for strength, corrosion resistance, and good heat dissipation.
Includes Sealing Ring: Comes with a high-quality rubber sealing ring for reliable sealing.
Precision Machined: Sealing surface precision-machined for proper fit with the mounting hole.
Heat Resistant: Material designed to withstand engine operating temperatures.
Direct Replacement: Perfect substitute for damaged or worn original valve covers.

🔧 Installation Tip

1. When replacing the valve cover, it is recommended to replace the sealing ring at the same time to ensure proper sealing.
2. Clean the mounting hole and cover sealing surface to remove oil and debris.
3. Inspect the sealing ring for damage or deformation; replace if necessary.
4. Ensure the sealing ring is properly seated in the groove during installation.
5. Tighten mounting screws to the specified torque to avoid warping the cover or damaging the seal.
6. Start the engine and check for oil leaks after installation.

⚠️ Important Notice: This is a C100 valve cover (valve hole cover) for Mopeds, Cubs, Dirt Bikes, ATVs, and vehicles using 139FMB, 147FMD, 147FMF, 150FMG engines. It is recommended to replace the sealing ring at the same time to ensure proper sealing. 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.