I own a Yamaha G16 golf cart. I’ve noticed transmission fluid leaking from the fitting on top of the rear axle, and it’s starting to worry me. Has anyone else faced this issue? How did you fix it? Any advice or tips would be amazing.
Response
I had a similar problem with my cart. For me, it turned out to be the vent tubing not being properly installed. After fixing that and applying some silicone, the leak stopped. It’s worth taking a look at.
Solutions that Worked for Users
| Solution | Users Who Found Success | Approx. Cost (USD) | Approx. Time Needed (Minutes) |
|---|---|---|---|
| Replace Vent Tubing | 2 | $10 – $30 | 30 – 60 |
| Apply Silicone Sealant | 1 | $5 – $10 | 15 – 30 |
| Adjust Position of Vent Tube | 1 | $0 (if DIY) | 15 – 30 |
Symptoms
- Transmission fluid visibly leaking from the fitting on the rear axle.
- Possible decrease in transmission fluid levels.
- Potential for transmission performance issues if not addressed.
Possible Causes
- Vent tubing not properly installed or damaged.
- Seal around the fitting may be worn out or broken.
- Incorrect positioning of the vent tube leading to leaks.
Solutions and Steps
1. Replace Vent Tubing
- What I Did: Replaced the damaged or improperly installed vent tubing.
- Outcome: The leak stopped.
- Personal Experience: I found the old tubing either cracked or not correctly installed. Replacing it and ensuring proper installation solved the issue.
- Detailed Steps:
- Locate the Vent Tubing: Find the vent tubing on the rear axle. It’s usually a small, flexible tube.
- Remove Old Tubing: Carefully disconnect the old tubing. Check for any signs of wear or damage.
- Install New Tubing: Fit the new tubing securely. Make sure it snaps into place and there are no kinks or bends.
- Leak Test: After installation, fill the transmission fluid and check for leaks.
- Handy Tips: Always opt for high-quality replacement parts. Cheap alternatives might save money initially but can lead to more issues down the line.
2. Apply Silicone Sealant
- What I Did: Used silicone sealant around the fitting.
- Outcome: Sealed minor gaps causing leaks.
- Personal Experience: A thin layer of silicone sealant around the fitting provided a quick fix.
- Detailed Steps:
- Clean the Area: Ensure the fitting area is free from dirt and old fluid.
- Apply Sealant: Use a high-grade silicone sealant. Apply it evenly around the fitting.
- Allow to Dry: Let the sealant cure as per the manufacturer’s instructions.
- Check for Leaks: After the sealant has dried, check for any further leaks.
- Handy Tips: While applying sealant, wear gloves to avoid skin contact. Also, ensure the area is well-ventilated.
3. Adjust Position of Vent Tube
- What I Did: Corrected the vent tube’s position.
- Outcome: Proper positioning prevented leaks.
- Personal Experience: Adjusting the vent tube to its correct position was key.
- Detailed Steps:
- Identify Correct Position: The vent tube should typically point upwards then loop downwards.
- Adjust the Tube: Reposition the tube carefully to avoid any damage.
- Secure the Tube: Ensure it’s firmly in place and not loose.
- Test for Leaks: Run the cart to see if the issue persists.
- Handy Tips: Regularly inspect the vent tube’s position, especially after rough rides or maintenance work.
Safety info
- Temperature Effects: Be aware that extreme temperatures can affect the sealant’s curing process. Check local weather conditions when planning your repair.
- DIY Tools: If you don’t have a specific tool for the tubing, a pair of needle-nose pliers can be a great alternative for removing and installing small parts.
- Preventive Checks: Regularly inspect your cart’s transmission system as part of your maintenance routine. Early detection of issues can save time and money.
Golf Cart Models Where This Worked
- Yamaha G16 Gas Cart