Torque Specs for LAMORE TPMS Sensors
Clamp-in sensors have three threads that need torque: the valve stem nut onto the sensor body, the sensor body into the wheel hole, and the valve core into the stem. For LAMORE cars, the exact numbers depend on the wheel material and sensor design, so check the manual if you have it. Typical values:
| Component | Torque Range | Notes |
|---|---|---|
| Valve stem nut | 10–15 ft-lb | Do not go past 15 ft-lb; you will strip the aluminum body |
| Valve core | 4–6 in-lb | Snug is usually enough, tighten gently |
| Sensor body to wheel | 40–60 in-lb | Many aftermarket wheels use 45 in-lb, but verify |
If you are installing the BH-Sens BL-ST-031 (433MHz), it is a straightforward clamp-in replacement. This sensor is pre-programmed for many MG, Roewe, Rising, and Im fitments, and works on LAMORE models that share the same TPMS platform.
Valve Stem Service Tips
- Always replace the rubber o-ring or sealing washer on the sensor stem. A used seal will start leaking after a few weeks.
- Clean the wheel hole contact area. Sand residual tape or old rubber off first.
- Use a thin coat of silicone grease on the o-ring—just enough to keep it from rolling during installation.
- Torque the valve core to spec and cap it. The core is the #1 leak point if you overtighten or cross-thread it.
Common Installation Mistakes
Mistake #1: Overtorquing the valve stem nut. That nut is meant to hold the sensor tight against the wheel, not to fix a leak. When you crank past 15 ft-lb, the aluminum stem cracks at the neck and the sensor fails silently.
Mistake #2: Forgetting the sensor position. Some LAMORE wheels have recessed pockets. If you don’t align the sensor body in the pocket, the wheel bead will pinch the housing during tire mounting. Rotate the sensor so the body sits flat in the recess.
Mistake #3: Using the old valve core seal. The core has a tiny rubber seal that hardens over time. Replace it with the service kit that comes with the sensor.
Mistake #4: Not checking the torque after a few days. New sensors settle into the wheel hole. Re-torque the stem nut after 100–200 km and you’ll avoid a loose-sensor rattle.
Recommended Part
For LAMORE and compatible GM–era MG, Roewe, Rising, and Im vehicles, use a pre-programmed 433MHz sensor so you don’t need to clone or copy data from the old unit. The BH-Sens BL-ST-031 fits that role — BL-ST-031 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Im, MG, Rising, Roewe | OE# 10290600, 10625492, 10718213. It’s a clamp-in sensor with the MPN marking you need, and it saves shop time because the ID is already set.
FAQ
What is the TPMS torque spec for LAMORE wheels?
The stem nut is typically 10–15 ft-lb. The sensor body to the wheel is usually 40–60 in-lb. Always check your vehicle manual because wheel material and sensor shape can change the spec.
Can I reuse the valve stem on a LAMORE TPMS sensor?
No. The stem is part of the sensor body. You can reuse the sensor itself, but the o-ring, washer, and valve core should be replaced with a fresh service kit.
Do I need to program the BL-ST-031 after installation?
No. The BL-ST-031 is pre-programmed. You still need to do a TPMS reset or teach procedure on the vehicle so the ECU recognizes the sensor ID, but there is no blank EEPROM to flash.
What happens if I overtighten the valve core?
You pinch the core’s rubber seal and distort it. That will cause a slow leak through the center of the valve stem. Tighten the core to just snug, then another ¼ turn max.