Rotax 912ULS Shortblock Strip, and Rebuild Engineering Insights!


The web pages linked to below are intended to give anyone who has not used our services before an insight into how we work, the tools we use, and a reasonable overview of what goes on during an engine rebuild / gearbox service etc, and what quality of workmanship to expect. These pages are not meant to be comprehensive how-to guides only an insight into the process and may be useful insofar as they may be used to compliment the documentation found in the official Rotax technical manuals.


NOTE: Accessing Official Rotax Documentation ...

NOTE: A Work In Progress ...

NOTE: Rebuild Torques and Compounds ...

NOTE: The Final Cosmetic Finish / Presentation of Rebuild ...

NOTE: Overseas Customers ...

Part 01 Still fully assembled in workshop pre-strip ...

Read More

Part 02 Removing cylinder 2 and 4 inlet manifold ...

Read More

Part 03 Removing cylinder 1 and 3 inlet manifold & ignition modules ...

Read More

Part 04 Removing upper coolant plumbing / coolant spider ...

Read More

Part 05 Starter Motor Removal ...

Read More

Part 06 Water pump housing removal ...

Read More

Part 07 Ignition trigger & tachometer trigger removal ...

Read More

Part 08 Flywheel cover removal ...

Read More

Part 09 Magnetic plug removal & examination ...

Read More

Part 10 Flywheel removal ...

Read More

Part 11 Stator / generator removal ...

Read More

Part 12 Magneto generator housing removal ...

Read More

Part 13 Mechanical fuel pump removal ...

Read More

Part 14 Reduction gearbox removal ...

Read More

Part 15 Cylinder head removal ...

Read More

Part 16 Cylinder barrel & stud removal ...

Read More

Part 17 Oil pressure sender removal ...

Read More

Part 18 Oil pump removed ...

Read More

Part 19 Piston removal ...

Read More

Part 20 Cleaning the shortblock ...

Read More

Part 21 Inlet & exhaust valve removal & cleaning ...

Read More

Part 22 Pistons removed ...

Read More

Part 25 Preparing the pistons for refitting ...

Read More

Part 26 Refitting the pistons ...

Read More

Part 27 Refitting the barrels ...

Read More

Part 28 Reassembling the cylinder heads ...

Read More

Part 29 Refitting the cylinder heads ...

Read More

Part 30 Refitting the magneto generator housing ...

Read More

Part 31 Rebuilding the magneto flywheel & upgrading to the revised timing flywheel ...

Read More

Part 32 Refitting the magneto flywheel ...

Read More

Part 33 Refitting the magneto pickups & setting the pickup clearance ...

Read More

Part 34 Refitting the waterpump housing ...

Read More

Part 35 Refitting the starter motor ...

Read More

Part 36 Refitting the upper coolant elbows ...

Read More

Part 37 Reassembling the coolant spider ...

Read More

Part 38 Rubber replacement / refitting lower coolant hoses ...

Read More

Part 39 Refitting the reassembled upper coolant spider ...

Read More

Part 40 Refitting the propeller gearbox housing ...

Read More

Part 41 Refitting the updated mechanical fuel pump ...

Read More

Part 42 Replacing the crank locking bolt blanking screw ...

Read More

Part 43 Refitting the inlet manifolds & carburettor rubber sockets ...

Read More

Part 44 Refitting the easy start SMD ignition modules ...

Read More

Part 45 Refitting the oil pump ...

Read More

Part 46 The finished rebuild on the bench ...

Read More

Our Hours:

The mobile is normally answered during the following times ...

Monday - Sunday: 8:30 am - 9:30pm

Please leave a message as we may be unable to answer. We will call you back!

AeroFix Aviation Ltd
Bolton
Lancashire
United Kingdom
BL3 4NN
Telephone: 07779 147 229
E-mail:
Enquiries@AeroFixAviation.co.uk