Rotax Clutch crown locking tool

Presentation: The essential of the toolbox

This tool is designed to immobilize the clutch clocker when mounting or disassembling the mounting nut. It allows to apply the necessary tightening torque without risking the internal components or to damage the teeth of the pinion.

• Mechanical safety: Unlike the use of a screwdriver or clip, this tool distributes force on several teeth, thus avoiding to mark or break the steel treated from the bell.

• Clamping accuracy: By perfectly blocking rotation, it allows the use of a torque wrench to meet the builder recommendations.

• Ergonomics: Long sleeve for a firm grip and optimal leverage.

- Technical specifications

-To use: disassembly of the clutch

1. Setting up: Position the tool so that the lugs fit perfectly into the teeth of the pinion or in the recesses of the bell.

2. Support: Contact the chassis or hold the handle of the tool firmly to counter the loosening force.

3. Releasing: Use a suitable size sleeve (often 17mm on Rotax) To unscrew the crankshaft nut.

4. Reassembly: Proceed in the same way for tightening. Important: On Rotax, the clutch nut must be tight at the recommended couple (about 20 nm to confirm according to the user manual) to prevent it from loosening by inertia.

💡 Michel's trick

"We often see clutch bells marked because the driver tried to block with a cloth or screwdriver. The trick: This tool is flat, slide it well with the pinion to prevent it from ripe under the effort. My Pro Council: Enjoy that the bell is blocked to check the condition of the needle bearing located behind. A well-fixed bell but with a dry bearing, it's the motor break insured at high speed! "

❓ FAQ SEO (Frequently Asked Questions)

Q: Is the tool the same for the gable of 11 and that of 12 teeth? A: Yes, most universal blocking tools for Rotax are designed to fit all standard gear bells.

Q: Can we use a shock wrench instead of the tool? A: Although possible, the use of the shock wrench is not recommended on the crankshaft because repeated impacts can, in the long term, affect the balancing or masses of the crankshaft. The manual blocking tool remains the safest method.

Q: Does it run for DD2 engines? A: The DD2 has a specific system, but there are versions of this tool with an imprint adapted to the DD2 transmission gear. Check the compatibility when buying.