Replacing the riser gasket
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=33615
Printed Date: November-17-2024 at 5:02pm
Topic: Replacing the riser gasket
Posted By: Halvey
Subject: Replacing the riser gasket
Date Posted: May-17-2014 at 2:09pm
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So I noticed a drip coming out from between the riser and the exhaust manifolds, so i'm in the process of taking them off to clean them up and replace the gaskets. I'm having a hell of a time trying to get the rear bolts out and can't imagine that everyone has this much trouble.  The spacing on it is so tight that the only way to get anything on it is by using a 1/2" swivel socket. This is giving me crappy leverage and I'm assuming that I'm going to break the bolt head off before I even get close to loosening it. Does this sound right? I cant even get a wrench to seat on it because it sits too far back. (351w) ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=6833" rel="nofollow - '83 Ski Nautique |
Replies:
Posted By: Morfoot
Date Posted: May-17-2014 at 2:31pm
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Sounds about par for the course.... Guessing you can't get a boxed end wrench in there???? Mix up some Tranny oil and acetone 50/50 mix and soak it for a bit. Looks a little rusty in there and I'd imagine the bolts haven't been moved since they were originally installed. If the bolt is still being stubborn then soak it some more with your mixture then run the boat for a while to heat up the manifolds (or use a heat gun) Metal swells when warm so that might loosen the grip the manifold has on the bolt. You could use a torch to heat up the manifold but then you'll ruin the paint on it but a rattle can of black high temp grill paint can touch it up. ------------- "Morfoot; He can ski. He can wakeboard.He can cook chicken.He can create his own self-named beverage, & can also apparently fly. A man of many talents."72 Mustang "Kermit",88 SN Miss Scarlett, 99 SN "Sherman" |
Posted By: 8122pbrainard
Date Posted: May-17-2014 at 4:15pm
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I agree with Tim's ideas. With the wrench, I'd suggest a 6 point box. It's a tight area and you won't get a decent grip on it with a socket. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Frankenotter
Date Posted: May-17-2014 at 5:50pm
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I had the same problem when getting my manifolds off. If you search my name in the forum, you'll fun a thread with a ton of techniques and failures regarding manifold bolts. I broke 3 of 4 of my bolts from the risers. Fortunately, it didn't matter because my manifolds were cracked anyway. The technique that yielded the BEST RESULTS : 1. Lots and lots of Automatic Transmission Fluid mixed with acetone. 2. Weld nuts on to the existing bolts. The heat from the weld will work miracles. 3. Use an impact wrench to back them out. This combination saved me LOTS of money and time. Trust me, you don't want to spend all your time dealing with machine shops. Also remember, when you finally replace the rider gasket, one of the water jackets are intentionally blocked (should be the rear most if I remember correctly). ------------- 1999 Ski Nautique 196 |