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    Do I NEED Exhaust shutters?

    Well per my earlier thread I was changing the bellows and gimball bearing when I found an exhaust shutter/flapper in the exhaust. I saw mentioned a few times on here recently that some shutters were eliminated from the current Y-pipes, and Volvo doesn't use them anymore. So... Do I really need...
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    Bellows tube/boot bigger than regular bellow?

    I was replacing my bellows, gimball bearing, lower shift cable, and trim sender today. Besides finding a flapper in the exhaust everything was going good except when I got to puttin the exhaust bellow on I realized its way too big. The small end of the new exhaust boot is a 1/2 inch bigger...
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    Cobra Pressure test results

    Ok so Ive been having water in my drive oil. I took the drive off to fix this and do the other maint items like the bellows. I put 15 PSI in the drive and I can hear it leaking out around the propshaft. So, I got a bottle of soapy water and started spraying. I cant find any leaks anywhere...
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    Riser/Manifold leak?

    This is a new engine (in July) that came complete with these manifolds and risers. I noticed a little tiny rust spot about a month ago and it has gotten worse and now as you can see the rust is all the way around where the riser meets the manifold, and you can see where water actually dripped...
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    Any other sugestions while I do the bellows? And ? about part.

    Well I found out that both of my bellows are rotted very bad. I have been wanting to install a new lower shift cable anyways just so I know its new. I have also been finding a little bit of water in the drive. Not alot just enough where you can tell. Soooooo, I'm bringing my boat home so...
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    Anyone done Tampa to Key West?

    My friend just bought a 30 ft Catalina. He has never had a sailboat but he used to go out with me all the time when I had a Catalina 25 a few years ago. I have traveled from Ft. Walton Beach to Sarasota before. I really wasnt prepared for the voyage and it was a real eye opener on the 25'r...
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    Can both OMC Cobra bellows be changed without removing drive?

    Just wondering. I am gonna be removing the drive anyways when I get the boat home from the marina sometime. But can it be done?
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    Cobra trim ram(s)

    When I went to my boat yesterday I noticed that there was oily fluid leaking from the drive somewhere. I found out it was from the port side trim ram. I noticed that where the ram enters the cylinder there was a ring shaped piece (seal maybe) that had come off. I slid it back on as tight as I...
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    Steering assy is loose and making noise

    Well I figured out what the noise is when I steer. With the enine cover off when I was turning the steering wheel I could see the steering assy that's attached to the inside of the transom moving around. When I went back there I can move the whole steering assy. It's really loose. The transom...
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    OMC Cobra power stearing cooler

    Well I went down to my boat today and started her up. I suddenly saw a jet of water comeing from behind the engine. Uposn further investigation I found the nipple on the power steering cooler was cracked and thats where the water was coming from. After I took the cooler off I saw it was...
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    First engine rebuild

    As a little background this engine had a small oil leak. Oil pressure was lost while underway and engine was immediately shut off. When I checked the oil it was low but only held about a qt to get it back up to where it should be. After starting it back up it had a lower end knock. So this...
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    Power steering noise/vibration

    Recently I noticed that when I turn my steering wheel I can feel what feels almost like clicks or something in the wheel. But I can also hear some almost knock sound coming from the engine compartment (I assume the power steering pump), and the knock is at the same time I feel the clicks in the...
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    What is a heat tab sensor?

    Just curious. Was looking through parts here at iboats and found these. What are they for? "]http://www.iboats.com/OMC-Heat-Tab-Sensors/dm/*******.117261240--**********.997498834--view_id.710797] Incase that link doesnt work they are Mallory Part # 9-59050
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    ??? about reversion

    I dont have any reason to believe I have an issue with water reversion but I was just wondering. If the manifolds and risers are straight up from where the exhaust goes out of the engine then what stops water from going back down into whatever cylinders exhaust valve is still open after...
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    new complete engine with 70 hours 1st overheat.

    So Im pretty sure my engine has a 140 degree t-stat in it because it usually sits right at 145-150. A couple weeks ago I noticed that after running it for a while it was creeping up to 160 or so but would come down if I let off the throttle for a sec. I just bought the boat the end of June and...
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    Someone went on my boat and stole my stuff!!!

    I keep my boat at a marina dry rack and uasually keep it on the water at the dock there for three or four days at a time. There is a locked gate that you have to walk down the side of the marina to get to the docks. There is a half a** fence set up with wire on top but I have locked myself out...
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    Just to make sure. Interchangeable hub install.

    I changed to a new SS prop that takes the interchangeable hub and now I have a vibration. Just to make sure, the interchangeable hub is installed by putting the square piece in the prop cavity, putting the thrust washer on the prop shaft, putting the insert part that has the splines in it in...
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    GREAT new prop. Now vibration?

    So I put the new Apollo prop on yesterday and today I went for a little ride and there is a vibration now from 1300-3200 RPM's. It might be vibrating above 3200RPMs but if it is I cant feel it. The Apollo uses the interchangeable hub. I checked the prop again and it is on there correct and...
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    ESA knock???

    My boat has been running great. Sometimes when i shift into F the esa will stock and i have to jiggle the handle to get it to stop stumbling Well, I changed the impeller and put a new SS Apollo prop on yes. Today I took it out today and notice that the boat now makes a weird almost knocking...
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    Keep spinning hubs

    Hi all, I have a OMC 5.7 with a 1.5:1 Cobra drive. The boat came (when I bought it) with a 15.5 X 15P alum prop. The prop looked pretty dinged up so I planned on getting a new one but first I put the line on the hub and prop to see if the hub is spinning at all. It was. I didnt have any...
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