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    Antifreeze circulation through engine

    Where is that rust coming from? Thats the exhaust?
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    Antifreeze circulation through engine

    This will be the first year I winterize my own boat. Always paid a boat shop to do it. It looks like the Splash RV AF -50 at Menards has corrosion protection. I was planning to drain and leave it empty but decided to refill with AF -75 to slow internal rusting. Not so much for the block but...
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    5.7L 1984, Rough idle at start up, then ok after a minute or so

    Might be worth swapping in a known good ignition coil. It might be shorting internally. And the suggestion of using the timing light on each plug wire Is a good idea. Could also be a bad plug wire. Sounds like a electrical issue
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    5.7L 1984, Rough idle at start up, then ok after a minute or so

    Collapsed lifter sounds plausible. How does the battery negative (black) cable look? If it gets corroded that can reduce voltage from the battery until the alternator can overcome the voltage drop. It can also stop the battery from getting fully charged, and reduce power to spark plug on start...
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    Which gasket is better for impeller install, metal or fiber?

    Yup, from the look of the old parts, it was aftermarket alright. The next time I do this, I will get a new housing too. I feel better knowing the key parts are all new now. You just never know what the PO did or didnt do. You can see where water was getting past the gasket. The topside...
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    Mercruiser Alpha One Gen II not pumping water

    I just finished my impeller install. First thing I noticed was the plastic guide tube was melted at som point. I used a heat gun to soften the guide and reshape it. The lower unit went back together very easily. I can only assume it lined up with the pump outlet. I will have to wait until...
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    Which gasket is better for impeller install, metal or fiber?

    Stormulus, When I removed the pump this morning the old fiber gasket looked like hell, torn up and missing in spots. So I followed your lead, used the steel lower gasket, applied the permatex aviation to both sides of the gasket and it looks like it will last a lifetime. whoever did this...
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    Which gasket is better for impeller install, metal or fiber?

    I am sorry, I wasnt questioning your reply. I was trying to respond to the last 3 posts at the same time. I appreciate your input and shared experience. whats interesting is a few posts back someone shared info from a source that it was to be i stalled dry.
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    Which gasket is better for impeller install, metal or fiber?

    Im coming from this perspective. My boat is 26 years old. While the information is mostly accurate, some parts have been updated, upgraded, or modified over the last 2 decades. The manual does not, will discuss the new pump seal which is just 3 years new. Which is why I started this thread...
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    Which gasket is better for impeller install, metal or fiber?

    The deformed sleeve guides the water pipe into the pump. It doesnt seem to much else. I used my heat gun this afternoon and reshaped it so its round again. Should be fine for what it does. The grooves in the shaft, while not ideal is probably fine with new o-rings and lube. The gear case is...
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    Which gasket is better for impeller install, metal or fiber?

    I debated if I wanted to replace the impeller now while I winterize or in the spring before boating. So my A.D.D. got the better of me. here are some pictures before I start the disassembly. This looks uglier than anything I have seen in youtube videos. Im guessing its been a long time since...
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    Which gasket is better for impeller install, metal or fiber?

    Did you coat both sides with permatex or just the top side?
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    Which gasket is better for impeller install, metal or fiber?

    I have had this boat a short time. Had it out 3x this year. Before going out I changed the thermostat just for peace of mind. The old T-stat would not close completely. However when I was out on the lake last, I noticed that the temp held at 160*F while running, but at higher RPMs 3500 and...
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    Which gasket is better for impeller install, metal or fiber?

    My thoughts exactly. If that steel plate cant seal, air will be sucked in and overheat at full throttle. And a sealant cant be used, I believe the fiber gasket is the better choice with gasket compound. That plate is slick and bolts far apart. It needs to be glued in place. I picked up permatex...
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    Which gasket is better for impeller install, metal or fiber?

    Thats one of the kits I have and it looks like the impeller has a steel core. Its stronger but Im thinking of corrosion to the driveshaft. Thanks
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    Which gasket is better for impeller install, metal or fiber?

    Good grief. And this is your contribution to scold me first thing in the morning?. These gentlemen offer one answer. Follow the manual. I dont have one. Which is why I posed the question. Not to point out the Obvious, but if I had the manual and live next to a marina, I wouldnt need to ask the...
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    Which gasket is better for impeller install, metal or fiber?

    neither kit I bought had instructions. That metal gasket cant make a complete seal. It might not blow out, but as mentioned above, would most likely suck air when on plane. Another difference between the two kits I bought, one impeller had a plastic core, the other had a metal core. Im...
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    Which gasket is better for impeller install, metal or fiber?

    The kits are coming with a perimeter steel plate rather than a fiber gasket. The item in the upper left corner is the lower gasket, made of stainless steel.
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    Which gasket is better for impeller install, metal or fiber?

    thats what Im looking for. Did you install the metal gasket dry or coat it with something. Im just wondering how a metal plate held in place with only 5 Lb ft can be a seal or gasket, spacer, yes. Gasket, no
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