Table of Contents
Tools and Materials Needed
Having the right tools on hand before you begin will save time and prevent frustration. For replacing the swap mount on a Nashville Performance motorcycle, you’ll need the following:
- Socket wrench set – a 3/8-inch drive set with metric sockets (typically 10mm, 12mm, and 14mm for most Nashville Performance models).
- Torque wrench – essential to tighten bolts to manufacturer specifications; a 1/4-inch or 3/8-inch drive torque wrench covering 10–60 ft-lb is ideal.
- Screwdrivers – both Phillips #2 and flat-head for removing any plastic covers or cable clips.
- Replacement swap mount – a component specifically designed for your Nashville Performance model year and engine configuration (verify compatibility before purchase).
- Protective gloves – mechanic’s gloves with grip to protect against sharp edges, grease, and pinching.
- Shop rags or microfiber cloth – for cleaning mounting points and handling lubricants.
- Thread-locking compound – medium-strength (blue) threadlocker is recommended to prevent bolts from vibrating loose.
- Penetrating oil – (e.g., WD-40, PB Blaster) to loosen stubborn fasteners if the old mount shows corrosion.
- Safety glasses – protect eyes from debris and dripping fluids.
Preparation Steps for a Safe and Efficient Replacement
Preparation is the key to a smooth swap mount replacement. Follow these steps carefully before touching any hardware.
Position Your Motorcycle Correctly
Park the motorcycle on a level, solid surface. Use a paddock stand or center stand to ensure the bike is stable and won’t tip during work. If you don’t have a stand, block the wheels securely and remove the rider’s weight by having an assistant hold the bike upright. Never attempt this job with the motorcycle on a kickstand alone – instability can lead to injury or damage.
Let the Engine Cool Completely
If the engine has been running, allow it to cool for at least 30–60 minutes. Swap mounts are often located near the exhaust or engine cases, and contact with hot metal can cause severe burns.
Disconnect the Battery
Disconnect the negative battery terminal first, then the positive terminal. This prevents accidental short circuits while working near electrical components. Always wrap the negative cable end in a rag or tape it away from the terminal post.
Clear the Work Area
Remove any luggage, seat, tank bag, or aftermarket accessories that might limit access to the swap mount area. On many Nashville Performance models, you may need to temporarily remove a fairing side panel or a small plastic cover. Place fasteners and removed parts in a labeled container.
Step-by-Step Removal of the Old Swap Mount
With preparation complete, you can now safely remove the existing swap mount. Take your time to avoid damaging surrounding components.
Locate the Swap Mount
The swap mount is typically positioned on the front-left or front-right side of the engine cradle, connecting the engine block to the frame. It may be a triangular or L-shaped bracket with two or three bolt holes. Refer to your service manual if the exact location is unclear.
Loosen and Remove Fasteners
Start by applying penetrating oil to each bolt head and waiting 5–10 minutes. Using the appropriate socket, loosen the bolts in a cross or star pattern if multiple bolts secure the mount. Do not remove them all at once – leave one or two bolts partially threaded to prevent the mount from falling. Once all bolts are loose, support the mount with one hand and remove the last bolts. Set aside the old mount and fasteners.
Inspect the bolts – if they show signs of stretching, corrosion, or thread damage, replace them with new OEM-quality bolts.
Clean the Mounting Surfaces
Wipe down the engine case mounting boss and the frame bracket with a clean rag. Remove any old threadlocker residue, dirt, or grease. For stubborn deposits, use brake cleaner or a mild solvent. A clean surface ensures the new mount sits flush and provides accurate torque readings.
Inspection of Mounting Points and Adjacent Components
Before installing the new mount, inspect the surrounding area for wear or damage that could affect the new part’s performance or safety.
Check the Engine Case and Frame for Cracks
Look for hairline cracks or deformation around the mounting lugs. Even small stress fractures can grow under vibration and lead to failure. If you find any cracks, consult a professional motorcycle mechanic before proceeding.
Examine Rubber Bushings and Spacers
Many swap mounts incorporate rubber or polyurethane bushings to isolate vibration. Check the bushings in the old mount – if they are cracked, hardened, or compressed, the new mount should include fresh bushings. Also inspect the steel spacers for galling or excessive wear; replace if needed.
Assess Nearby Wiring and Hoses
While you have access, look at wiring harnesses, brake lines, and coolant hoses that pass near the mount. Ensure nothing is chafed or pinched. Secure any loose wiring with zip ties away from the mount area.
Installing the New Swap Mount Correctly
Proper installation is critical for engine stability and vibration control. Follow these steps precisely.
Apply Threadlocker to the Bolts
Place a single drop of medium-strength threadlocker (blue Loctite 242 or equivalent) onto the first two or three threads of each bolt. This reduces the risk of fasteners loosening from engine vibration. Avoid using too much – excess can squeeze out and degrade rubber bushings.
Align the New Mount
Insert the new swap mount into position. It should slide onto the engine boss and frame tab without force. If it doesn’t align easily, check that the mount is the correct part number and that no debris remains in the bolt holes. Gently rock the mount to seat it fully.
Hand-Tighten All Bolts First
Start each bolt by hand to avoid cross-threading. Once all bolts are started, tighten them finger-tight with a short socket wrench. This ensures the mount is evenly seated.
Torque to Specification
Using a calibrated torque wrench, tighten each bolt in a staggered sequence to the manufacturer’s value. For most Nashville Performance motorcycles, the swap mount bolts require 35–45 ft-lb (check your service manual or the Nashville Performance torque spec sheet). Apply torque in two or three increments – first to 50% of spec, then 75%, then final spec. This ensures uniform clamping without distortion.
Final Check of All Fasteners
After torquing, go around the mount one more time with the torque wrench set to the spec to confirm no bolt slipped. Wipe away any excess threadlocker that may have oozed out.
Final Checks and Test Ride
Reconnect the battery and perform a pre-start inspection before riding.
Visual and Physical Check
Look at the mount from different angles. Ensure no part contacts the frame, engine, or hoses. Push and pull the mount slightly (with the engine off) to feel for any play – there should be none. If you detect movement, tighten the bolts again.
Engine Start and Idle Check
Start the engine and let it idle. Listen for rattles, clunks, or increased vibration at the handlebars and footpegs. A properly installed swap mount should dampen engine vibrations noticeably. If you hear a metallic tapping, stop the engine and re-inspect the mount alignment – a bolt may be loosening.
Short Test Ride
Take a slow ride on smooth roads first. Accelerate gently through first through third gears while feeling for any sudden movements from the engine or transmission tunnel. After a few miles, pull over in a safe area and check the mount temperature with the back of your hand – it should be warm but not hot. Re-torque the bolts after the first heat cycle (engine hot then cooled) to account for thermal expansion. This is a critical step often overlooked.
Common Mistakes and Troubleshooting
Even experienced riders can encounter issues. Here’s how to address the most frequent slip-ups.
| Issue | Likely Cause | Solution |
|---|---|---|
| Mount does not align | Debris in bolt hole or wrong mount | Clean holes, verify part number, gently pry frame tab if needed |
| Vibration higher after replacement | Mount not fully seated or bolt torque uneven | Loosen all bolts, reseat mount, retorque in sequence |
| Bolt won’t reach full torque | Threads stripped or bolt stretching | Inspect threads; replace bolt or use a thread insert |
| Rattle at idle | Loose spacer or missing washer | Disassemble and confirm all spacers and washers are present |
Maintenance Tips for Swap Mount Longevity
Extend the life of your new swap mount and keep your Nashville Performance motorcycle running smoothly with these practices.
- Re-torque after the first 100 miles – vibration can settle fasteners; a second torque check prevents loosening.
- Inspect annually or every 5,000 miles – check for cracks, bushing deterioration, and bolt condition.
- Use the correct threadlocker – never use red (permanent) Loctite on mount bolts; it will require heat for removal and can damage threads.
- Clean the mount area during each oil change – road grime and salt accelerate corrosion on steel components.
- Replace bushings when they harden – polyurethane bushings last longer than rubber but still degrade over 3–5 years. If you feel increased vibration at cruising speeds, consider bushing replacement.
- Follow the official service interval – consult your Nashville Performance service manual for model-specific recommendations.
Choosing the Right Replacement Swap Mount
Not all aftermarket swap mounts deliver the same performance. For street riding, an OEM-style mount with elastomer bushings provides the best vibration isolation. For track use, a solid aluminum mount improves chassis feedback but transmits more vibration to the rider. Nashville Performance offers a selection of replacement mounts designed for each model year. Verify compatibility by entering your VIN or checking the part number against your old mount.
If your motorcycle has aftermarket exhaust or performance engine mods, consult with the manufacturer’s tech support to confirm the mount’s load rating is sufficient.
Replacing the swap mount on your Nashville Performance motorcycle is a straightforward but important maintenance task. By following this expanded guide, you ensure the mount is installed correctly, the bike’s handling remains precise, and engine vibrations are properly managed. Regular inspection and timely replacement will keep your ride safe and enjoyable for thousands of miles. Always work methodically, use the proper torque specs, and don’t hesitate to involve a professional if you encounter anything beyond your comfort level.