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Dry Joint Manifold Riser Conversion

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Dry Joint Manifold Riser Conversion

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Old 03-11-2014 | 07:08 PM
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Default Dry Joint Manifold Riser Conversion

Is it possible to convert to dry joint from old style wet joint risers/manifolds on a 1998 mercruiser 5.0. If so what parts are needed?

Chris
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Old 03-11-2014 | 07:21 PM
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98 might be ready for a new set. 16 yrs is a long time on a set if merc manifolds. Just buy the dry joint.
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Old 03-11-2014 | 07:23 PM
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I think that's what he means. what is needed besides manifolds and risers? I don't think dry joint stuff will even bolt on to wet joint stuff.
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Old 03-11-2014 | 07:31 PM
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Cost twice as much .Do yourself a favor and forget the aggravation and just put new of the same back on .It'll last a few years
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Old 03-11-2014 | 07:39 PM
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To be clear, I am replacing manifolds and risers. looks lije just a few hoses to go to dry joint. anyone ever done this?

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Old 03-11-2014 | 07:49 PM
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Think it's just manifold and risers with a jumper between them.
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Old 03-24-2014 | 01:22 PM
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Originally Posted by I.C.U.Lookin
Think it's just manifold and risers with a jumper between them.
That's kind of what I was thinking. I have the stainless cast risers from Merc, and they have a nipple on the front side of them for a jumper hose... Looks like you could run 'em either way, as the still have the 4 slots at the mating surface. For the dry joint, I believe you need a stainless plate with only the exhaust opening, and then double up the gaskets to either side.
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Old 03-27-2014 | 06:17 AM
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Blue,,,I have a nice low hr factory set of dry joint Mercs off of a 6.2 Scorpion. Just sayin'.
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Old 03-27-2014 | 06:56 AM
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CC230 you should have been Just Sayin 2 wks ago...lol... I have completed the conversion. How do you like the 6.2 Thinking of building a 383 next year.

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Old 03-27-2014 | 08:41 AM
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I bought those from an OSO member as a package with the 6.2 heads, I'm building a 383 and ended up having to use aftermarket exhaust. Marine Kinetics cam wouldn't work with them. Hoping to get it assembled and get working on the boat soon.
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