Jabiru 3300 - Reassembly - Re-fitting The Oil Pump.

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 oil pump.



ALT text here

Image 1

Having cleaned and degreased both faces of the oil pump backing plate we start by removing the small o-ring ...

View Larger Image ...

ALT text here

Image 2

Here is a new oil pump housing main o-ring BS143V ...

View Larger Image ...

ALT text here

Image 3

With a suitable o-ring pick remove the old o-ring ...

View Larger Image ...


ALT text here

Image 6

Thoroughly clean out the o-ring groove. A cotton wool bud can be helpful ...

View Larger Image ...


ALT text here

Image 8

Apply a minimal amount of Loctite 518 to the small o-ring seat ...

View Larger Image ...

ALT text here

Image 9

Refit the new o-ring. Apply a thin and uniform coat of Loctite 518 to the front and rear sealing faces of the backing plate ...

View Larger Image ...

ALT text here

Image 10

Here is our replacement oil pump woodruff key ...

View Larger Image ...


ALT text here

Image 12

Woodruff key in postion on the oil pump drive shaft ...

View Larger Image ...


ALT text here

Image 14

Clean the oil pump inner gear ...

View Larger Image ...

ALT text here

Image 15

Position the backing plate. It should hold position without slipping due to the thin coat Loctite 518 on the rear face ...

View Larger Image ...

ALT text here

Image 16

Place the inner gear on the oil pump drive shaft taking care not to dislodge the woodruff key ...

View Larger Image ...


ALT text here

Image 18

Position the outer gear as shown in this picture. The red arrows identify the two locator dots on the inner gear and the outer gear ...

View Larger Image ...

ALT text here

Image 19

Finally clean and degrease the mating face of the oil pump housing, apply a uniform coat of Loctite 518, and position it over the outer gear. Finger tighten the oil pump bolts ...

View Larger Image ...

ALT text here

Image 20

Torque oil pump bolts as per overhaul manual ...

View Larger Image ...

ALT text here

Image 21

Clean up any excess Loctite 518 if necessary.

View Larger Image ...