C90 Camshaft Assy

Brand: Mortch Motor
Product Code: MIC90-6020

Product Viewed: 32

Availability: In Stock

Weight: 0.27kg

Packing Size: 7.00 x 7.00 x 10.50cm

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¥25.00

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C100 Camshaft Assembly

🔧 Camshaft · Valve Train · Engine Core Component

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

📋 Product Overview

This is the C100 Camshaft Assembly, a core component of the engine's valve train. It is suitable for Mopeds, Cub series, Dirty Bikes, and ATVs, and fits engines including 139FMB, 147FMD, 147FMF, 150FMG, and similar models.

The camshaft assembly is installed in the engine cylinder head and driven by the timing chain connected to the crankshaft. The cam lobes on the shaft push the valve rocker arms at precise intervals, controlling the opening and closing of the intake and exhaust valves, ensuring that the engine's intake and exhaust processes are perfectly synchronized with piston movement. Manufactured from high-strength alloy cast iron or steel, the cam profiles are precision-ground and surface-hardened for excellent wear resistance and fatigue strength. This assembly is the ideal replacement when the original camshaft shows signs of wear, lobe damage, or journal scoring.

✨ Key Functions: Controls valve opening & closing · Precise valve timing · Drives valve rocker arms · Determines engine performance · Wear & fatigue resistant

📐 Specifications

Product Name

Camshaft Assembly

Engine Application

139FMB / 147FMD / 147FMF / 150FMG

Material

High-Strength Alloy Cast Iron / Steel

Cam Lift

OEM Specification

Surface Treatment

Cam Lobe Hardening

🔧 Compatible Engine Models

This camshaft assembly 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

Camshaft Specification Note: Different engine displacements may have different cam lift and timing specifications. Please verify your original camshaft specifications or specific engine model before purchase.

🛵 Compatible Vehicles

Mopeds - Various 50cc-150cc moped models (underbones, scooters, etc.)
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 camshaft assembly is suitable for the engine models listed above. Different displacement engines may have varying camshaft parameters. Please verify your original camshaft specifications before purchase.

⚙️ Importance of Camshaft

🔄 Valve Control

Precisely controls intake and exhaust valve timing, duration, and lift.

⏱️ Valve Timing

Ensures intake and exhaust processes are perfectly synchronized with piston movement, directly affecting power and efficiency.

⚡ Performance Determinant

Cam lobe profile determines engine power characteristics, torque output, and fuel economy.

🛡️ Reliability Assurance

High-quality materials and heat treatment ensure long-term stable operation, reducing wear and failure.

⚠️ Camshaft Failure Symptoms: Engine noise (tapping from valve area), power loss, rough idle, poor acceleration, abnormal valve clearance, or in severe cases, worn cam lobes preventing proper valve operation. If these occur, inspect and replace the camshaft assembly.

⚠️ Common Camshaft Failure Symptoms

Valve Area Noise: Rhythmic tapping or clicking sound from the cylinder head during engine operation.
Power Loss: Worn cam lobes reduce valve lift, decreasing intake/exhaust efficiency and causing noticeable power loss.
Rough Idle: Timing deviation leads to unstable idle or stalling.
Poor Acceleration: Delayed power response and sluggish engine performance during acceleration.
Abnormal Valve Clearance: Cam wear causes valve clearance to change constantly, requiring frequent adjustment.
Journal Wear: Increased clearance between journals and bearing surfaces, oil pressure drop, possibly triggering oil pressure warning.

If you experience these symptoms, inspect the camshaft assembly, valve rocker arms, and valve clearance, and replace as necessary.

✨ Product Features

OEM Specifications: Manufactured to original cam profile, lift, and timing specifications for precise valve timing.
High-Strength Material: Made from high-quality alloy cast iron or steel with excellent rigidity and toughness.
Precision-Ground Cams: Cam lobes are precision-ground for smooth surface finish and consistent contact with rocker arms.
Surface Hardening: Cam lobes undergo surface hardening treatment for superior wear resistance and long service life.
Precision-Machined Journals: Journals are machined to precise tolerances for proper fit with bearing surfaces and smooth rotation.
Direct Replacement: Directly replaces worn or damaged original camshaft assembly without modification.

🔧 Installation Tip

1. Replacing the camshaft assembly requires removing the cylinder head cover, timing chain, and valve rocker arms; professional installation is recommended.
2. Clean the camshaft bearing surfaces and mounting area thoroughly to remove oil and debris before installation.
3. Carefully align the crankshaft and camshaft timing marks during installation to ensure correct valve timing.
4. It is recommended to inspect and replace the valve rocker arms simultaneously, as worn rocker arms will accelerate wear on the new camshaft.
5. Before installing the camshaft, apply engine oil to the journals and cam lobes for pre-lubrication.
6. Tighten camshaft bearing cap bolts to the specified torque, following the proper tightening sequence.
7. After installation, adjust valve clearance to specification and manually rotate the crankshaft several times to confirm timing alignment.

⚠️ Important Notice: This is a C100 camshaft assembly suitable for Mopeds, Cubs, Dirty Bikes, ATVs, and vehicles using 139FMB, 147FMD, 147FMF, 150FMG engines. Different engine displacements may have varying camshaft specifications. Please verify your original camshaft specifications before purchase. Proper alignment of timing marks is critical during installation to prevent engine damage. It is recommended to inspect valve rocker arms for wear and replace if necessary. 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.