You do not need to pull the engine. Risers and exhaust manifolds are
relatively easy to remove. They are heavy so take the risers off first and
then the manifolds. If the boat has been in fresh water you may only need
to replace the risers. In fresh water you can sometimes get two sets of
risers to one set of manifolds. I would remove both and inspect the
manifolds before deciding. Also auto exhaust gaskets can be used between
the block and the manifolds, you don't need to pay "extra" for marine ones
:-)

" JimH" jimhUNDERSCOREosudad@yahooDOTcom wrote in message
. ..
Based on preliminary advice from 2 members of this NG I may be looking at
replacing the exhaust manifolds and risers on my 4.3L 1997 Volvo Penta.

The engine compartment on this boat is small and even an oil filter change
is difficult.

Knowing that does the replacement of the manifolds and risers mean the
engine has to be pulled? The boat is a 1997 Glaston GS209.

TIA!