1997 Challenger - Foam Blocks in engine compartment?

[easygoin4]

These were loose in engine compartment, one each side, not shown in parts list.
Where do they go and what are they for.
Thanks

 

[easygoin4]

Each is a thick piece of foam with some fiberglass 1/4" thick panels on each side.
Any idea...
Thanks

 

[ronmold]

They're part of the system that makes the boat un-sinkable. Mine are loose also and not sure where they originally went but I leave them in there for the buoyancy.

 

[mikidymac]

They're part of the system that makes the boat un-sinkable. Mine are loose also and not sure where they originally went but I leave them in there for the buoyancy.

Seadoo boats are far from unsinkable and I doubt those small pieces would change that. They look like a divider of some kind.

 

[Doug Overkill]

They create a duct from the floor of the engine compartment that the blower uses to vent the area. I think a lot of them get removed as many boats I looked at didn’t have them. The Challenger 1800 I bought they are intact and this is what they do. Blower on one side(starboard) that I think blows out and sucks clean air in from other side(port).

 

[easygoin4]

thanks