RC Cars HPI Dash

Sunday, October 23, 2005

Problem with Nitro Car Engine

If you nitro car engine runs fine but does not move that means something in the drive train has come in lose. Best option would be to first check the rear wheels. Ensure in the rear wheels if the nuts that fixes them to the axel are in place. If nuts are loose then axel may keep moving in its place but the wheels may not get the enough gear to move.

If rear wheels and their attachment to axel is okay then it would be a good idea to check the inward drive shafts to the differential case. If there are universal joints at the differential case, they are attached with small screw sets. These screw sets might be one of the reasons that they may give problem with the moving of the car. The set screws hold the drive joint onto the small stub shafts that protrude from the case. If these shafts are loosened then the stub shaft will spin but the drive joint will not. The set screw shall need to be on to that flat portion of the shaft to align the same with the drive joint. To get access to the set screw it may be required to dissemble the suspensions a little.

Moving along these lines; mostly the car starts working fine. But if the problem still persists, it might be possibility that the main gear needs to be inspected. Inspect the main gear to ensure that it is tight on the shaft. When a slipper clutch is loose, the main gear will turn but the power will not be transferred to the gear box. This can be easily seen when the engine is operating. If you view that the gears turn but the shaft does not then it means that the slipper clutch is loose. The main gear needs to be tightened on the shaft and the problem shall be solved.

These suggestions work best with the gas powered model cars. But they are not limited to them only. Applying the above inspection rules may solve problems with most of the cards and the wheels may set rolling.

These problems occur mostly with gas powered remote control racing cars. This is due to the reason that the vibration of the engine tends to loosen the nuts, bolts or screwing of the chassis etc. this loosening might give some problem although the initial working model might have been picture perfect. But after a speed run some check back are always due to avoid such problems.

It would in the best interest of the car model and for the driver also to always give a one and half hour inspection to the model after every four hours of run. This maintenance always keeps the model set right and ready to speed up. Usually Nitro based models require fairly high degree of maintenance to the vehicle. This is due to the reason that Nitro Remote Control car go 1/8th scale off-road single speed average 30-40 MPH. 2-Speed averages to be 40-50 MPH. Trucks average 25-35 MPH. Speeds can be variable depending upon environmental conditions, motor size, tuning, gearing, clutch bell size, etc.

So taking care of Nitro engines might not be such a great task but a regular maintenance along with regular care should do the wonder.

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