hi all,

I am replacing the fuel lines and some of them (on the top of the engine,
WBX 2.1) have a beige plastic tube/shield around them, and they are very
brittle and have cracks.

what's the function of that shield -  heat shield? abrasion shield?

I'd think its heat shield but just asking... is it OK not replacing them
and leave the fuel hoses bare?

thanks

dan