Jabiru 3300 - Reassembly - Re-fitting The Inlet Manifold Pipes

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 inlet manifold pipes.



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For this job we will need some Loctite 5922. This is the UK available version of what is referred to in the overhaul manual as Gasket Compound Number 2 ...

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A set of new inlet manifold gaskets ...

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Make sure that the manifold mating face is absolute clean and there is nothing to stop it sealing correctly. Any leak on the induction system will likely result in a lean running engine and potentially expensive damage ...

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Start on any cylinder. It doesn't much make a difference. I find the job is made a whole lot easier if the inlet manifold gasket is adhered lightly to the mating surface of the inlet manifold with a thin application of Copaslip. This just serves to hold the gasket captive whilst you offer the inlet manifold upto the cylinder head and insert the manifold bolts. Tighten the manifold bolts until finger tight ...

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Here you can see the upper manifold tube in place together with gasket and CopaSlip ...

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Here we see all the upper inlet masnifold tubes in place on this side of the engine ...

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And on the other side of the engine ...

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Next we need to re-fit the induction body to the bottom of the sump ...

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Here is the induction body back from parts cleaning ...

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Before we re-fit the induction body we change the o-rings ...

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Once the old o-rings have been removed we can clean out the o-ring grooves in the induction body ...

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Then fit the new o-rings ...

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Next we can re-fit the sections of induction hose and hose clips and slid them up the upper induction pipe (and thus temporarily out of the way) whilst we fit the lower induction pipes ...

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Here is a new induction hose and it's clips. Note the cylinder designator number stamped on the induction pipe. As all the induction pipes are bent into different angles having the designator number clearly stamped on the pipe makes life easier reuniting the correct pipe with it's associated cylinder. Note that once the induction hose is slid into final position the number stamp will no longer be visible. It will be obscured by the induction hose ...

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Here is the first of the lower induction pipes to be re-fitted ...

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Thoroughly degrease the end of the induction pipe that is destined for the induction box. Apply a ring of Loctite 5922 and push the pipe into position until it seats correctly in the induction box. Make sure that you feel the induction pipe progress beyond the induction box o-ring ...

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Here you can see that both upper and lower induction pipes are in place and to finish the connection between cylinder head and induction box all we need to do is slide the induction hose down the induction pipe and tighten the hose clips ensureing that there is an equal overlap of the induction hose on both induction pipes ...

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Here we can see the induction hose in it's correct position ...

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Here we see a full set of induction hoses on this side of the engine ...

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And here we can see the induction hoses for both sides of the engine ...

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