Radiator hose into metal tube, why?

[IF13]

Can anyone explain to me why this is the chosen design? Is it because they needed the threaded portion of the tube?

I was in a crash and it's slightly dented. I'm opting to cut up to the bend and replacing the silicone hose with one that's longer. Is there any downside to this?

[alex.s]

it will be hard to get a seal on it without a lip to clamp onto. but if you put rtv on it will probably work. maybe. the reason is you don't want a floppy rubber hose down there where if something nicks it, it could cut it open. metal doesn't care if its getting hit by branches or crashed on as you can tell. it might have sprung a leak but it didn't rip it out did it.

[DaBlue1]

Originally Posted by IF13

Can anyone explain to me why this is the chosen design? Is it because they needed the threaded portion of the tube?

It provides some rigidity (metal) so it does not collapse and just enough flex (rubber) for expansion/torsion. On the Australian model the metal coolant pipe connects to a coolant valve and damper. The coolant valve connects to the carbs to keep them from icing.

[IF13]

Originally Posted by DaBlue1

It provides some rigidity (metal) so it does not collapse and just enough flex (rubber) for expansion/torsion. On the Australian model the metal coolant pipe connects to a coolant valve and damper. The coolant valve connects to the carbs to keep them from icing.

Oh...I wonder why they didn't do this in other regions. I mean....It'd make sense for NY -- not that it really affected me even during my winter trips.

Originally Posted by alex.s

it will be hard to get a seal on it without a lip to clamp onto. but if you put rtv on it will probably work. maybe. the reason is you don't want a floppy rubber hose down there where if something nicks it, it could cut it open. metal doesn't care if its getting hit by branches or crashed on as you can tell. it might have sprung a leak but it didn't rip it out did it.

Damn, maybe I'm just better off getting a new metal pipe then. I hope getting it off won't be too difficult. And nah, it didn't leak or get ripped out. It's just dented badly. It still lets coolant through but....it could be better.

[DaBlue1]

Originally Posted by IF13

Oh...I wonder why they didn't do this in other regions.

I have no idea.

[mgentz]

Originally Posted by IF13

Can anyone explain to me why this is the chosen design? Is it because they needed the threaded portion of the tube?

I was in a crash and it's slightly dented. I'm opting to cut up to the bend and replacing the silicone hose with one that's longer. Is there any downside to this?

rigidity. engine design. function.

Based on how everything connects to the 250 motor, one could not just use hose.