exhaust risers
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=48166
Printed Date: April-29-2024 at 9:08am
Topic: exhaust risers
Posted By: WakeskateNW
Subject: exhaust risers
Date Posted: October-23-2019 at 12:35am
Tackling some engine maintenance projects on my '89 this winter, starting with the risers , for obvious reasons.  upon inspection after removal , I noticed the outlet in one riser looks a little different than the other; as it has a big blob at the bottom, my question is this just years of build-up? and do I need to address it? when I pick at it with a screwdriver it seems quite solid compared to the rest of the rust corrosion elsewhere. trying to get a sense of how concerned I should be.  
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Replies:
Posted By: WakeskateNW
Date Posted: October-23-2019 at 12:43am
heres what the mating surfaces look like
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Posted By: Gary S
Date Posted: October-23-2019 at 1:05am
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How does the matching manifold side look? Are you running in brackish water? I'm thinking it's time to bite the bullet. Maybe you only need new risers but post up a pic of the manifolds ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: WakeskateNW
Date Posted: October-23-2019 at 1:42am
| I haven't scraped the gasket off the manifolds yet, so tbd. will report back later with some pics. I've never ran in brackish or salt and as far as I know the previous 2 owners haven't either. |
Posted By: WakeskateNW
Date Posted: October-24-2019 at 5:59pm
ok heres what the manifolds look like seem to be in much better shape then the risers. |
Posted By: desertskier
Date Posted: October-24-2019 at 8:07pm
| Manifolds and risers don't have to see salt water to rust out. I just replaced mine with about 1700 hours of fresh water use. Your risers look about the same as mine did but your manifolds look much better. If it was me I would replace just the risers. |
Posted By: Gary S
Date Posted: October-24-2019 at 8:38pm
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+1 on the risers Your right Sean but I only mentioned it because he's closer to salt water than you or I. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: WakeskateNW
Date Posted: October-24-2019 at 9:41pm
| new risers it is then! appreciate the feedback, this is all new territory for me. |
Posted By: outerbanked
Date Posted: October-24-2019 at 11:01pm
I have two used ones that I keep tripping over in my garage near UW area. Picked them up along with other stuff I needed on CL. I cut the gaskets off and spent 30 sec with a flat file on each. They just need a home before I recycle them. You would need a gasket kit and new hardware. Probably new rubber exhaust hoses since you already have it this far apart. Pm me if interested.   
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Posted By: desertskier
Date Posted: October-24-2019 at 11:24pm
| Those look good! |