Required to complete the differential-compression/blow-by test during routine maintenance on ROTAX 9 Series engines as per the relevant Line Maintenance Manual. This tool is also used for diagnostics and troubleshooting.
An adapter for connection to the ROTAX cylinder head is included.
Download the respective Line Maintenance Manual (MML) from www.FlyRotax.com for complete instructions.
iRMT training with a minimum Service Level rating is recommended. Information about iRMT training is available on https://shop.cometaviationsupplies.co.za/shop/engines-engine-parts/rotax-aircraft-engines/irmt-training-rotax-aircraft-engines/rotax-irmt-training/
Key Aviation‑Focused Features
- Dual‑Gauge System for Clarity & Accuracy
-Features an input pressure gauge and leakage‑percentage gauge, giving maintenance personnel a clear view of cylinder performance during routine inspections or for troubleshooting. - High‑Quality Precision Regulators
-Provides stable, consistent test pressure, ensuring repeatable and trustworthy results during annuals or 50‑/100‑hour inspections. - Complete Kit for Workshop or Field Use
-Includes hose fittings, adapters, and connectors to integrate with common spark‑plug thread sizes used in aircraft engines. Rugged, foam‑lined case ensures the kit travels safely between hangars or airfields.
Why Aviation Technicians Use Leak‑Down Testing:
Leak‑down testing gives far more diagnostic insight than standard compression tests, making it essential for monitoring engine health trends and preventing premature component failure — especially important in safety‑critical aviation environments.









