Jabiru 3300 - Reassembly - Re-fitting The Gearbox and Rotor Arms

Introduction ...

This page contains photos of a Jabiru 3300A Solid Lifter engine under going a bulk strip and rebuild. This page documents the process of re-fitting the gearbox and distributor rotor arms.



ALT text here

Image 1

Here are our distributor drive shaft with gears back from parts cleaning. Note they have been thoroughly cleaned and degreased. Also note that all the remains of previous applications of epoxy resin have been removed. The rotor arms fitted to this version of the distributor shaft / gear are secured to the end of the distributor shaft with epoxy resin ...

View Larger Image ...


ALT text here

Image 3

Apply Loctite 518 to the distributor mounting spacer ...

View Larger Image ...

ALT text here

Image 4

Then position the distributor mounting spacer and the distributor cap mounting plate together in their correct place on the gearbox housing. Note that both the crankshaft gear oil seal and the distributor cap mounting plate oil seals have been exchanged for new ones (see red arrows) and reatinged in place using a small amount of Loctite 2910 flange sealant ...

View Larger Image ...



ALT text here

Image 7

In this rebuild we upgraded from the thin-walled crankshaft gear to the thick-walled crankshaft gear which necessitates the fitting of a new smaller internal diameter crankshaft gear oil seal. Take this oppertunity to apply a generous coat of GP grease to help protect the sealing face of the seal when we re-fit the gearbox housing ...

View Larger Image ...

ALT text here

Image 8

Next press the distributor shaft into position on the gearbox housing taking care not to damage the oil seal ...

View Larger Image ...

ALT text here

Image 9

Here we can see both distributor shafts in their correct postion on the gearbox housing ...

View Larger Image ...


ALT text here

Image 11

Next clean and degrease the engine plate so that the gearbox housing has a clean face to bond to ...

View Larger Image ...

ALT text here

Image 12

Note the generous application of engine oil to the camshaft gear and crankshaft gear ...

View Larger Image ...

ALT text here

Image 13

Apply an evenly distributed coat of Loctite 518 ro the mating face of the gearbox housing ...

View Larger Image ...

ALT text here

Image 14

Next refit the gearbox housing to it correct psotion on the engine mounting plate and torque up it's mounting bolts ...

View Larger Image ...

ALT text here

Image 15

Fit the new rocker arms to the distributor shafts ...

View Larger Image ...