Ambassadeur 4600CB (85-2)

Maintenance and Repair Guide: Abu Garcia Ambassadeur 4600CB (85-2)

The Ambassadeur 4600CB (85-2) is a vintage right-hand retrieve model from the mid-1980s, distinguished by its "Self-Casting" or "Center-Button" features and the "CB" (Casting Brake) nomenclature. This era of Ambassadeur reels represents a peak in Swedish mechanical engineering. Because these components are now over 40 years old, they require specialized care to maintain their integrity. This service utilizes Deuthlon Reel Grease and Deuthlon Reel Oil to provide modern protection to a classic frame.

Phase 1: Exterior Disassembly

1. Handle and Star Drag: Remove the screw from the handle nut locking plate. Use a 10mm wrench to remove the handle nut. Pull off the handle arm, the tension spring washer, and the star drag wheel.

2. Side Plate Removal: Loosen the three knurled thumb screws on the right side plate (handle side). Pull the side plate away from the frame.

3. Spool and Brake System: Slide the spool out of the frame. Note the centrifugal brake weights on the spool spindle. In the 4600CB, these are critical for controlling the cast and should be handled with care.

Phase 2: Drive Train and Gear Maintenance

The gear set in the 85-2 model is composed of high-quality brass and steel. After decades of use, the goal is to prevent further metal-on-metal wear.

1. Cleaning: Remove the screws securing the right side plate to the frame. Lift the plate to expose the main gear assembly. Use a degreaser and a soft brush to remove aged, hardened grease from the teeth.

2. Grease Application: Apply Deuthlon Reel Grease to the Main Gear and the Pinion Gear. This grease is specifically formulated to create a high-load film that stays on the teeth, providing a silent retrieve and protecting these vintage gears from oxidation.

3. Clutch and Release: Apply a small amount of grease to the pinion yoke and the internal release sliders. The "CB" series relies on a precise mechanical link for the thumb release; ensuring this is well-greased prevents the button from becoming stiff or sticking.

Phase 3: Levelwind and Idler System

The synchronized levelwind on the 4600CB must oscillate freely during the cast. Any mechanical drag in this vintage system will result in poor casting distance.

1. Worm Shaft Service: Unscrew the pawl cap on the bottom of the line guide and remove the metal pawl. Slide the worm shaft out of the frame shroud. Clean the spiral grooves of all old lubricant and debris.

2. Idler Gear Inspection: Locate the nylon idler gear that connects the spool’s rotation to the levelwind. Inspect for any cracks or brittle teeth, which can occur in older nylon parts.

3. Oil Application: Apply Deuthlon Reel Oil to the Levelwind Worm Shaft and the Idler Gear. Using oil instead of grease is essential here. The lower viscosity of Deuthlon oil ensures that the levelwind and idler gears do not create mechanical resistance, allowing the vintage spool to spin at its maximum potential.

Phase 4: Bearings and Spindle

1. Spool Bearings: Locate the bearings (usually stainless steel or bronze bushings, depending on the specific 85-2 sub-variant).

2. Lubrication: Clean the bearings thoroughly. Apply exactly one drop of Deuthlon Reel Oil to each. This oil is designed to maintain a consistent film even at high RPMs, ensuring smooth, predictable casting.

3. Mechanical Tension: Wipe the ends of the spool spindle and apply a micro-drop of oil to the contact points inside the tension knobs.

Phase 5: Reassembly and Testing

1. Gear Box Rebuild: Reseat the pinion gear into the yoke and slide the main gear and drag stack onto the drive shaft.

2. Frame Assembly: Reattach the side plate to the frame and tighten the screws.

3. Spool Installation: Slide the spool back into the frame, ensuring the brake weights are properly positioned. Attach the side plate and tighten the thumb screws.

4. Final Hardware: Reinstall the star drag, spring washer, handle, and 10mm nut. Secure the locking plate.

Final Function Check

Engage the thumb release to ensure the spool enters free-spool mode. Spin the spool; the levelwind should track back and forth silently. Turn the handle to engage the gears and check the drag tension. The use of Deuthlon Reel Grease on the primary gears and Deuthlon Reel Oil on the levelwind and idler gears ensures your vintage Ambassadeur 4600CB (85-2) remains a smooth and functional piece of angling history.