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    New Yamaha 70hp correct prop size

    Hello, I have a 1964 Glastron 17', had a new Yamaha f70 installed. Trying to figure out the best prop size. Dealer installed a 17" prop to try. WOT I get 5400 rpm's, they suggest a range 5300 - 6300. I know I'm in that range but barely , wondering if should go to a 15" to get more in the middle...
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    Low Voltage

    Hello, I've got a 1996 Mercruiser 5.7 noticed the voltage gauge was reading about 11 volts when I cranked the engine. I checked the battery with a multimeter with the engine off it reads 12.2 volts, when I crank the engine it drops to 11.2 volts. I've checked the connections and the alternator...
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    Water dripping thru lower shift cable

    Hello, I've got a '96 Mercruiser 5.7 Alpha II, started it up on muffs on the trailer and noticed water dripping from the lower shift cable on top of the engine. Any idea as to what I need to check to find where it's coming from. Any help would be greatly appreciated, thanks.
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    Manifold/Riser gasket question

    Hello, I've got a 1996 mercruiser 5.7 engine. I'm replacing the exhaust manifolds and riser/elbows and they have a 3" spacer between them.My question is which gasket to use. I've attached a picture of what I have. The new manifolds come with 2 gaskets pictured on top with 2 slots and 2 small...
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    Intermediate exhaust elbow question

    Can these holes be repaired with something like jb weld and hold up?
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    Intermediate exhaust elbow question

    This is the one from my boat. It's more of a 90 degree bend and measures almost 13". Can't seem to find this particular one, may have to make something else work. Seems to be a pretty common engine, didn't think it would be this hard to find. Thanks
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    Intermediate exhaust elbow question

    I'm am replacing exhaust manifolds,riser elbows and intermediate elbow. I'm am having a problem finding the right intermediate elbow. My engine is a '96 5.7 Mercruiser W/alpha one gen 2. There is a 3" spacer on the manifold, the only casting numbers on the exhaust tube are MH 64560. I can't seem...
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    Changing exhaust elbow tube

    Hello, I'm replacing my exhaust manifolds, risers and elbow tube. My question is will the elbow tube that fits a 4.3 liter engine fit my 5.7 liter engine. I've found some that say they are for a 4.3 liter but not 5.7. They seem to be the same dimension as what I have, just wondering if they will...
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