On Tue, 23 Mar 2010 19:05:01 -0700 (PDT), Tim
wrote:

On Mar 23, 7:54*pm, bpuharic wrote:
On Tue, 23 Mar 2010 17:41:47 -0700 (PDT), Tim
wrote:



Bob, if you're running a raw water system I think I'd just the simple
stuff with the nylon mesh inside. My hoses on my 350 GM are common
from NAPA. *even the ones that carry the water to the manifold risers.
Now from the manifolds to the outdrive or exhaust ports in the hull,
that might be a different issue that I have no knowledge of.

this is actually an inboard (surprising for a 27' boat, but it has a V
drive). *the marina guy said i could probably get what i need at the
autoparts store, but i don't think they're actually any cheaper.

these hoses go from the risers to the muffler, then to the exhaust
ports.

my 27' Chris Craft had aluminum piping going down from the manifolds
and elbowing toward the back. The hoses were short, and about 4-41/2 "
in diameter from what I remember, and bulbous in the middle that
connected the elbow to the actual exhaust pipe that went to the
transom ports. I take it they were shaped that way for flexibility.

You couldn't 90 degree them, but you did have some grace.

i thought about aluminum but am worried about the effect of hot
sal****er....also thought about stainless steel which may be cheaper
than the $1.50/ft the yard wants for hose. but have to worry about
heat dissipation from the steel into the engine compartment