N5DWI
03.06.2021 12:44:41
Tip.If you do paint the bottom keep the paint at least 1 inch away from the transom housing. [links]
See full version: Corrosion Problem
Tip.If you do paint the bottom keep the paint at least 1 inch away from the transom housing. [links]
Bravo 3 drives are touchy when it comes to corrosion. <br />I assume this is a dealer showing this boat to you? He is still giving you a "bit of a line". They probably didn't need to be replaced, but were corroded. He just "sold" the previous owner on a total replacement.<br />Send me your e-mail address, and I'll email you photos of my 1997 Bravo 3 drive that has been slipped in freshwater for the last 4 summers (it was trailered prior to that). The drive is corroded, but it doesn't need to be replaced.<br />There are two different types of annodes. The standard type and Magnesium. Magnesium is supposed to help in fresh water. But if the Mercathode system is not functioning properly, my marina warned me that the Magnesiums wouldn't last an entire summer. And they aren't cheap.
not to me<br /> corrosion on bravo III's can be a beyatch. even in fresh or brakish water or polluted waters they would corrode without the proper protection.<br /> some would do it in 6 months
The Bravo III drives had problems and still do. With 2 large SS props, aluminum housings, and if the previous owner put copper bottom paint on the boat and had it up against the transom shield, and used the wrong anodes, YES. There could have been serious corrosion problems.<br />The service manual, ( Click Here ) has a section in it for the mercathode.<br />There are also different control boxes for the Mercathode for fresh and salt water and even the possiblilty of parallelling them together. But it all has to be checked out using the meter and tests shown in the link above.<br />If the Marina says they burn up the Magnesium anodes in less than a season, then there is probably something wrong with the wiring at that marina. BUT. the Mag. anodes are a lot cheaper than a drive and transom shield. here
Step:3 Inspect whether the pulley is spinning or not if the pulley seems loose in connection or leaking the water pump. That means your MerCruiser engine seawater pump failed and needs to be immediately replaced.
Now, run a test drive by floating your boat on the water. If you find any minor issues like exhaust dropper leaks, fixed them by adjusting rubbers or hose clamps in the right position. here
The third most common problem is the exhaust manifolds leakage that some customers have already mentioned about. [links]
When repairing my boat, unfortunately on the port side, the steering pin had been leaking for so long it had corroded a hole the entire way through the transom housing! If the water line had dropped an inch or so, the boat would be constantly taking on water and likely sink.
A few hours of scrubbing and vacuuming the water out, and sure enough the bilge was now clean. I then spent the rest of Day 2 fitting the new transom assemblies, exhaust horns and changing the exhaust manifolds and risers on the port motor. here
The pressure is on – the boat was due to go back in the water in the afternoon and engines were still on the hardstand. The morning was spent tidying up the engines, getting them ready to be refitted. New thermostat and gasket was fitted on the starboard motor, then I cleaned as much corrosion as possible, and painted the motors. The port side exhaust manifold elbow also cracked, so a new one was sourced and fitted. By about 11am, the engines were getting craned back in. Fast-forward to 2pm, they were all bolted down and alignment done, ready for the sterndrives to be fitted. Once the sterndrives were fitted, the Marina was notified that we were ready to float. By about 4pm, the slings were being connected, and we were floating at 5:30pm. [links]
You depend on your garage door every day, but if you are like most people, you never pay much attention to the torsion spring. Torsion springs are designed to raise and lower the garage door smoothly and quietly. Homeowners need to understand that garage doors require periodic maintenance and must get inspected regularly. If you are having a problem with your garage door, the springs are likely the cause. Here are a few signs your torsion spring needs to be replaced.
The torsion spring repeatedly expands and contracts with everyday use. Over the years, it loses its flexibility, which eventually leads to failure. In fact, depending on maintenance and use, the lifespan of a torsion spring is only between seven and nine years. One way to test the strength of your springs is to manually lift your garage door to waist level and let it go. If the garage door stays up, your springs are fine. If the door starts to go down, your springs likely need replacement.
With regular and proper maintenance of your garage door, rust and corrosion are not an issue. However, a neglected torsion spring, by contrast, is a different story. Rust and corrosion wear out the springs, making a failure likely to happen sooner rather than later. If you see obvious corrosion, spring replacement is recommended.