On Tue, 23 Mar 2010 19:39:55 -0400, Wayne.B
wrote:

On Tue, 23 Mar 2010 19:15:38 -0400, bpuharic wrote:

looking to replace exhaust hose...one section has wire reinforcement,
another hose on other manifold does not.

any thoughts? this stuff isn't under much pressure and i think wire
can create local hotspots, leading to the wire tearing loose from the
hose over time....

engine is 350 merc on a 27' tollycraft

Hose is rarely attached directly to a manifold - it would get too hot
and quickly burn up. Most often it is attached to something called a
"riser" or "elbow" which is the point where raw cooling water is
injected into the exhaust flow.

yep, the old stuff is connected to the risers..

All of the exhaust hose that I'm familiar with is wire reinforced. It
prevents the hose from collapsing when it is bent into a radius. I
guess it's possible that if you had a totally straight run you could
get by without the reinforcement but I'd talk with an expert before
doing that.

these are pretty straight runs, but there's no guarantee, i think
that, as the hose ages, it couldn't buckle under use...