So... I have this spare engine.

[elgyqc]

When I replaced the AOS the hose between the top of the AOS and the intake manifold was so stiff I could not reattach it. What I ended up doing was to cut the tubing from the 2 end connectors (including removing the ends of the tubing where they are fitted over the connectors)...



... and joining the the original tube to the connectors with pieces of 3/4" silicon heater hose.



I will have to wait to see if the fit is snug enough without a sealant.
This should also work for repairing the long hose from the AOS to the front left of the engine.
UPDATE - after a couple of hours of driving there is no indication of the tube leaking. I will continue to check it

[NewArt]

Originally Posted by elgyqc

When I replaced the AOS the hose between the top of the AOS and the intake manifold was so stiff I could not reattach it. What I ended up doing was to cut the tubing from the 2 end connectors (including removing the ends of the tubing where they are fitted over the connectors)...



... and joining the the original tube to the connectors with pieces of 3/4" silicon heater hose.



I will have to wait to see if the fit is snug enough without a sealant.
This should also work for repairing the long hose from the AOS to the front left of the engine.

Why did you keep the accordion hose part and not just use silicone hose for the whole thing?

[maytag]

Originally Posted by NewArt

Why did you keep the accordion hose part and not just use silicone hose for the whole thing?

Exactly.
That's what I did, and added a "loop" into it to collect liquid oil in it at the track. ;-)


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[elgyqc]

Originally Posted by NewArt

Why did you keep the accordion hose part and not just use silicone hose for the whole thing?

Because the hose crimps when bent that sharply. I tried a home-made coil to prevent the crimp, but it didn't work.



A big loop as suggested by maytag would work.

The Boxster is now in the garage and the engine transplant work has started, yesterday I got the exhaust off. I am shopping for new stainless steel replacement bolts, I broke seven and I haven't got to the manifolds yet.