Jake:

Yes, I did remove the mixing elbow and exhaust flange together from the exhaust manifold......it was the only way to remove the mixing elbow....and then it was challenge to separate the mixing elbow from the flange on a work bench....but with patience and a little help of a pipe extension on the big wrench, it separated.

My friend that helped had 'headless bolts' can I could hand screw into the exhaust manifold to guide the combined exhaust flange and new mixing elbow in place. I put two in diagonally, put the other two diagonal permanent bolts in, removed the two 'headless bolts' and put the next two bolts in....tighten up....done. It helped when you are working on your side left handed. Also put in a new gasket between the flange and manifold.

There was no problem with the exhaust hose from the muffler back to the thru hull...other than standing on my head working on the thru hull connection.

The problem was connecting the short 18" hose from the mixing elbow to the muffler......because of the angle to the two and the stiffness of the 'marine grade hard walled exhaust hose' I chose, for a long time I could not connect the hose over one of the two.....the angle and stiffness of the hose and the fact I am not able to work with both hands adequately, made it a frustrating job....I could get one on but not the other. After multiple attempts, I attached the hose to the mixing elbow and inserted a big flat head screw driver into the hose, which gave me the leverage to bend it enough to begin to place it over the muffler intake....a few tries with the screw driver, success........ and it was now beer time.

As with every first time job, if I were to do it again (which I hope I never have to), I could do it with more know how and less frustration.

Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.







On 2014/01/24 6:26 PM, Jake Brodersen wrote:
Rob,

Working with exhaust hose can be very challenging.  When I replaced mine, I
used 90 degree fiberglass elbows.  It was far superior to the kinked mess my
boat came with.  They are much easier to put together than a long piece of
stiff hose.  I usually remove the mixing elbow along with the exhaust
manifold.  It's much easier to put them in a vice on my bench than try to
separate them on the boat.

Jake


-----Original Message-----
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Robert
Abbott
Sent: Thursday, January 23, 2014 8:56 PM
To: ahycr...@cox.net; cnc-list@cnc-list.com
Subject: Stus-List Now Mixing Elbow

Gary:

Problem with changing the mixing elbow was the limited and awkward space to
work in on my boat......access is in through the port locker into the engine
compartment,,,,access is restricted because of hot water heater in the port
locker (could be removed but I didn't, extra work).....mixing elbow in on
the starboard side so I am lying on my right side using my left hand.....I
am 'right handed'.

Ended up taking the mixing elbow off by working from the front of the
engine.  A friend had done it before and helped me.  He had "blank(s)"
or "bolts without heads" that could be screwed into the exhaust manifold to
guide and hold the mixing elbow in place while you attached the permanent
ones.  Doing that 'blind' from the front of the engine or trying to do it
with one hand would be almost impossible.

Then attaching the hose from the mixing elbow to the new Vernalift muffler
proved to be a challenge......used a heat gun to soften the hose....just
difficult to work with one hand much of the time.

Rob



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