Quote:
Originally Posted by targasc1980
911pcars, as I said in the original post, it is generic rubber hose.
creaturecat, maybe that would help, but it already seems a little long, and no matter how much I tried to coax it into a gentle bend, it would just fold over sharply somewhere.
I ended up putting three more hose clamps spaced half an inch or so apart around the bend to force it to be more gradual and to try to hold the circular shape. It seems to have worked! The hose is no longer completely closed at the bend.
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Sorry. Overlooked your generic hose description. Your hose clamp fix does offset the tendency for the hose to collapse due to the bend. Other than sourcing the correct factory hose, here are some solutions that may work in various situations.
Splice in a pre-formed angled/curved transition tube that fits the ID of the hose, then secure with clamps. However, not easy to source off-the-shelf shaped tubes. Another idea is to source an off-the-shelf hose containing the desired formed bend to match your requirements. Cut out the needed section and splice with transition tubes on each end. Again, other than coolant hoses, lube-rated large diameter hose (coolant hose not readily available in the automotive world. Coolant hose will also deteriorate in contact with lube oil.
A third option is to source a preformed silicone hose adapter (pics below). These can be had in many shapes (straight, angled, U-bend, etc.) and diameters, with a different ID on each end if needed. Here, to connect the air duct from the engine surround tin to 993 heat exchanger air inlets. I scoured eBay and came up with the following:
45º silicone hose adapter: 2.5>3":
Target: 3" OD heat exchanger inlet (modified to allow valve cover R&R):
Completed: 2.5" SCAT/SKEET hose ducting > 2.5" Al connector tube > silicone hose adapter and hose clamps:
All connections relaxed, no tension.
Another area needing an angle change:
Sherwood