Ambassadeur 5500C3 2-Speed (91-0)

Abu Garcia Ambassadeur 5500C3 2-Speed (91-0) Repair and Service Manual

The Ambassadeur 5500C3 2-Speed, specifically the 91-0 production run, is a unique marvel of Swedish engineering. Unlike standard single-speed models, this version utilizes an automatic shift mechanism that changes gear ratios based on the resistance of the retrieve. Due to the complexity of the internal shifting cam and dual-gear assembly, precise lubrication with Deuthlon products is vital to ensure the reel shifts seamlessly under load.

Internal Mechanism Maintenance

Servicing a 2-Speed Ambassadeur requires a focus on the shifting interface between the high and low-speed gear sets.

1. Gear Stack Disassembly: After removing the handle side plate, you will encounter the primary drive assembly. Carefully remove the e-clips securing the shifting mechanism. Take note of the orientation of the drive springs, as these calibrate the tension required for the reel to "downshift."

2. Degreasing: Submerge the dual-gear components in a solvent. Because the 2-speed relies on precise tolerances to engage the secondary gear, any old, gummy grease will prevent the reel from shifting.

3. Frame Inspection: Check the frame post for the idler gear. The 91-0 series relies on a perfectly timed levelwind to prevent line digging during high-torque retrieves.

Advanced Lubrication Strategy

The performance of the 5500C3 2-Speed is entirely dependent on the viscosity of your lubricants. We recommend Deuthlon Reel Grease for mechanical protection and Deuthlon Reel Oil for rotational speed.

Grease: Torque and Gear Engagement

• Main Gears (High & Low): Apply Deuthlon Reel Grease to both the high-speed and low-speed main gear teeth. This grease is formulated to stay on the teeth even under the sudden torque spikes that occur when the reel shifts gears.

• Pinion Gear: The pinion gear in the 2-speed model sees double the action. Generously coat it with Deuthlon Grease to prevent galling during the engagement of the spool.

• Drive Shaft: A light coat of grease on the drive shaft prevents corrosion and ensures the drag stack compresses evenly.

Oil: Shifting Fluidity and Casting

• Idler Gears: These gears drive the levelwind mechanism. Apply Deuthlon Reel Oil here. Using oil instead of grease on the idler gears reduces the "startup inertia" required to begin a cast.

• Levelwind Worm Shaft: Apply two drops of Deuthlon Reel Oil to the worm gear. This ensures the pawl travels across the shaft with minimal resistance, which is critical for the 2-speed model’s intricate line-lay timing.

• Shifting Cam: Apply a single drop of oil to the pivot points of the shifting cam. This ensures the mechanism reacts instantly when a fish puts pressure on the line.

Reassembly and Calibration

1. Re-seat the Gear Springs: Ensure the shifting springs are under the correct tension before closing the side plate.

2. Side Plate Alignment: Ensure the 2-speed selector (if applicable) or the internal centrifugal weights are clear of the side plate housing before tightening the thumb screws.

3. Drag Testing: Tighten the star drag and pull line by hand. The transition between the high-speed retrieve and the low-torque power should feel mechanical but smooth, facilitated by the high-tack properties of Deuthlon Reel Grease.

Service Reference Table

By utilizing Deuthlon's specialized PTFE-based lubricants, you protect the rare internal components of the 5500C3 2-Speed (91-0), ensuring this vintage powerhouse performs with modern efficiency.