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    Merc 5.7 Keeps Shearing starter bolts

    Found the problem... hydro Locked....yippee kya....
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    Batter Switch Off, Still Power to Instrument Panel

    Mystery solved....wiring mix up.... A boating I will go...
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    Batter Switch Off, Still Power to Instrument Panel

    Not dure if it's on all the time will check. If it is, is it shorting something out?
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    Batter Switch Off, Still Power to Instrument Panel

    Yes the bilge is hot wired to post 1.
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    Batter Switch Off, Still Power to Instrument Panel

    With the battery switch off, I noticed I now have power to the instrument panel and ignition key accessory post. The only wire connected to power at the switch (not the COM) is to the auto bilge pump (As per wiring diagram 99 Sea Ray 260). Could the battery switch be bad or is it possible for...
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    Merc 5.7 Keeps Shearing starter bolts

    Batteries are up to charge. Starter doesn't labor at all. It cranks very quickly....
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    Merc 5.7 Keeps Shearing starter bolts

    Engine is a 99, Serial OL336107. I had changed the starter 6 years ago, ther was no additional bracket or brace.... is there an aftermarket one available? Also,, does the bell housing support the starter nose cone,,does it fit in tight? I need to take a look.... I recall the plastic shield...
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    Merc 5.7 Keeps Shearing starter bolts

    5.7 Merc Sterndrive. 2nd starter installed in less than 2 years where outside bolt sheared off. Most recent installed a New Sierra starter with their supplied bolts. Torqued per specs. Started boat maybe 3 times. Fired right up. The other day...wouldn't start...tried a few brief times. Wouldn't...
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    Replace Bravo2 Lower Unit W/ Bravo

    Other question, I can across a bravo lower unit housing. Does the 1 and two use the same housing? Thanks
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    Replace Bravo2 Lower Unit W/ Bravo

    Thanks for all the input. The boat is a 99 Sea Ray 260 Sundancer, I believe to be 6,400 pounds dry. Yes is swings a 19 inch prop. Maneuvers very well at the dock. Sounds like I should stick with a Bravo 2.... unless the difference considering the application is minimal
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    Replace Bravo2 Lower Unit W/ Bravo

    I have a Bravo 2 Drive with a cracked lower unit. I have come across several Bravo 1, No Bravo. Is it possible to replace the B2 w a Bravo 1 lower unit using the Bravo 2 Upper?
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    Mercruiser 5.7 Thunderbolt 5 Hard to Start

    Lol. I get it. Pretty worthless. Thanks for the recommendation.
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    Mercruiser 5.7 Thunderbolt 5 Hard to Start

    I have the seloc manual. No much troubleshooting info. I will try your recomendation. Thanks
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    Mercruiser 5.7 Thunderbolt 5 Hard to Start

    I'm not very knowledgeable about intake manifolds. This what I have on the boat. The lower of the two sides is flooding... Cylinder side 1, 3, 5, 7. Would the base gasket be a contributor... Its the thin open plenum gasket. Not the spread bore...4 holes... Thanks for all your help
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    Mercruiser 5.7 Thunderbolt 5 Hard to Start

    Compression is 170 to 175 on all cylinders except for #8 Which is about 155. The carb was fully rebuilt by a rebuildeer in Tampa. The motor is getting fuel. Odd thing is when it floods, only the spark plugs on the port side are wet and fouled.
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    Mercruiser 5.7 Thunderbolt 5 Hard to Start

    This may be a stretch, what is the possibility of exhaust manifold being plugged? They are 5 yrs old. Always fresh water flushed, raw water cooled.
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    Mercruiser 5.7 Thunderbolt 5 Hard to Start

    Ok, I check the voltage at the coil + with key on. 13volts. Rechecked all the grounds. Checked engine wiring for chaffing etc. Checked ignition switch. Power is 12v in the on position. Crank motor... Go to run position...run position has power. Tried to start, immediately fires but will not...
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    Mercruiser 5.7 Thunderbolt 5 Hard to Start

    Got it. There is only one wire on the negative side of the coil. And I had thought that there was no resistor wire on the TB5. Thank you for verifying that.
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    Mercruiser 5.7 Thunderbolt 5 Hard to Start

    Can someone point me to the location of the resitor wire and color, on the Thunderbolt 5? I do not see it in the ignition diagram.... Thanks for everyone's help
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    Mercruiser 5.7 Thunderbolt 5 Hard to Start

    Timing chain was very sloppy, about a half in of play...
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