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Eyeman
PostPosted: Mon Jun 17, 2019 10:26 am 
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Joined: Fri Jun 07, 2019 10:41 am
Posts: 22
Location: Green Bay, WI
Does anybody know the lift expectancy of the risers on these freshwater engines? 415 hours.

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Eyeman
PostPosted: Tue Jun 18, 2019 6:28 pm 
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Seahorse

Joined: Fri Jun 07, 2019 10:41 am
Posts: 22
Location: Green Bay, WI
Nothing? Nobody is familiar with the 8.1L?

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2006 Four Winns 378 Vista
1999 Ciera 2655 5.7L BIII "Brenda Lou"
1996 Skeeter 1850DV 175 Mariner 9.9 Mariner. sold
1975 Lund 14' 25 HP Mercury. sold
2008 Dodge Ram 2500 4x4 6.7L Turbo diesel Quad Cab
South Bay Marina, Green Bay
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acguy
PostPosted: Wed Jun 19, 2019 6:07 am 
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Joined: Sun Jul 05, 2009 5:56 am
Posts: 931
Location: Georgian Bay, Ontario
If they have always been in fresh water you shouldn't have any issues. We here up in the Great Lakes/ Georgian Bay very rarely ever have to replace risers

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babbot1
PostPosted: Wed Jun 19, 2019 9:53 am 
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Those risers might be stainless. My 2002 8.1HO horizons are stainless.
Had my engines inspected 2 years ago. needed new gaskets and one manifold was starting to show signs so we replaced it. The manifolds last a long time as well with the closed cooled system.

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Eyeman
PostPosted: Wed Jun 19, 2019 1:45 pm 
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Seahorse

Joined: Fri Jun 07, 2019 10:41 am
Posts: 22
Location: Green Bay, WI
Thanks folks, this is good to know.

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2006 Four Winns 378 Vista
1999 Ciera 2655 5.7L BIII "Brenda Lou"
1996 Skeeter 1850DV 175 Mariner 9.9 Mariner. sold
1975 Lund 14' 25 HP Mercury. sold
2008 Dodge Ram 2500 4x4 6.7L Turbo diesel Quad Cab
South Bay Marina, Green Bay
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LouC
PostPosted: Thu Jun 20, 2019 7:40 am 
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Joined: Thu Jun 29, 2006 10:26 pm
Posts: 5688
Location: Long Island NY
You guys in freshwater are lucky. Here in salt water a raw water cooled exhaust is considered disposable. 5-7 years and you have to replace, unless your manifolds are on the closed cooling side. Then again salt water does not rot wood cored transoms!

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