taking off exhaust riser question

[Dalton]

I have to remove my turbo and exhaust riser (6bta) and have a riser made. Local company wants $3200 or more…its always more. So I’m doing it myself! I always get a price first to decide if its worth my time and this is worth my time.

Anyway, see the attached picture. I’m told this hose is really tough to get off. I plan on taking the turbo and riser off as one unit and then bringing it home to separate. Getting a quote from DeAngelo to make a new one since they did the port side already about a year ago. Starboard side is identical. I’m thinking they have it in a cad file and can just duplicate….i don’t know.

So here’s the question after all of that. I think it may be easier to loosen both ends of this hose and wrestle it apart to let the easier side come off first. But this section on the right is  below the water line. So wouldn’t that be a disaster if I did remove this whole hose?

Someone mentioned it may be easier to just cut the hose and install a new one but same question applies if I did that.

Topic

[Dalton]

Nerf football…good idea. The port side exhaust hose has a strap around it and screwed into the floor above for support. I wasn’t sure why one side had this and one didn’t but that riser was replaced last year so I’m guessing they supported it above the waterline with the strap and just left it there. I’ll do the same.

A local mechanic wanted to charge me $2200 for the riser when I just ordered one for $1290. Not sure why a company would have a 80% markup just to order something….

[Rob Schepis]

ken dalton wrote:

….So you are saying if I took this whole line off then water would come in?

Yes, it appears that line originates at a height at or below the LWL.

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Dalton

[David Wesner]

take the jubilee fittings off at the elbow and step on it. Sometimes a screw driver and some WD40 spray in the the hose/elbow connection as you pry it up. Also, nerf football good for damage control or….sealing an exhaust hose.

 

D

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Dalton

[David Marchand]

I had the same problem

I had the same problem when I extended the riser height on my Yanmar 6LY- the exhaust hose dropped down to near the water line and I didn’t want to haul the boat. I needed to add about 6″ to the exhaust hose length to accomodate the higher riser.

So, I installed a short hump hose and a short piece of fiberglass tube as a connector. That let me keep the open end of the exhaust hose up above the water line while I connected these up.

See the attached pic.

David

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Dalton

[Dalton]

Bad picture but attached is the port side which has the elbow. This is the only difference i see with the risers between the 2 sides.

[Dalton]

Yes, they look identical. The port side has an elbow attached to it to make up for the engine offset while the starboard side just goes straight to the large exhaust tube. To me it made sense because Maxum could just have a bunch of the same risers made but I don’t know what I’m talking about lol

But I’ve looked very carefully and both risers look identical.

If I remove that whole exhaust line in the picture then the opening is below the water line. I didn’t know if there was some sort of valve that prevented water to come flooding in. The exhaust line off the riser goes to this large black container (visible in the picture) and I wasn’t sure what that was but that is below the water line.

So you are saying if I took this whole line off then water would come in?

[Rob Schepis]

Port and Starboard risers are identical?  I’ve never seen that in a properly designed riser, ever..

I’d start by identifying your water line in the engine room and at the exhaust hoses before you start removing or cutting anything.  And also start thinking about how you can make your exhaust outlets 100% watertight. And, in addition to that, how you will secure any removed hoses so they remain above the waterline while things are apart.

 

[Author]

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