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    Faulty IAC or something else

    Not sure what you mean by all my testing is correct. Are you saying that the assumption of a bad IAC is correct?
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    Faulty IAC or something else

    I had some intermittent stalling issues at idle in gear and some rich smelling exhaust. Running on plane, boat behaved great. I got me the Diacom software and plugged in to see what was going on. Everything but the IAC duty cycle seemed fine. BTW, all testing done running on muffs. With the...
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    Merc 6.2L MPI low idle, rich and stalling....trying to put it all together

    I have a 2005 6.2L MPI with Bravo 3 and took the boat out over the weekend for the first run of the season. I had a couple instances of the engine stalling out while in gear at idle. It started back up each time with no problems. Other than these few stalls, it ran just fine. I think it may...
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    opinions ---hub temps

    Are there brakes on the trailer? If you have disc brakes, it's possible the calipers are sticking. I just completed a 300 mile run....on the way to, hubs were running upper 110's with mid 80's air temp....on the way back, hubs were running lower-mid 120's with mid 90's air temp. To date, the...
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    Dual battery setup (batt 1 & 2 or engine & house)

    I have the batt 1 & 2 setup (On, 1, 2, both) and I was curious about any pros/cons to this setup versus a setup with a dedicated engine and house batt where you could use the batt switch and ACR from Blue Sea. I've thought about converting over the Blue Sea system to keep the house circuit on...
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    I think this means water intrusion

    I still need to do a pressure test, but for discussion purposes, if I were to find a leak in the lower unit on the drive shaft, what seals/o-rings would need to be replaced. For example, looking at the parts diagram #40 (o-ring) and #42 (oil seal), would both of those get replaced? I see other...
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    I think this means water intrusion

    It's tannish looking on the outside edges as it's draining out.
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    I think this means water intrusion

    Unfortunately I've already discarded the old oil. I just remembered, since I just got the last year, when I changed the gear lube, it was a brownish colored lube and it looked clean in the sense it was a solid brownish color. I'm wondering if the color I'm seeing now is the greenish lube mixing...
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    I think this means water intrusion

    Did my winterization dance today :cry: Seeing the color of the gear oil makes me think I've got a water intrusion problem. What should be the next step? Pressure test it? Just replace the seals? Or does the drive need to be pulled apart to check for any internal damage?
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    How to address rusting hinge

    Thanks. Is it better to remove the hinge? Is the cleaner gel coat friendly?
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    How to address rusting hinge

    I have a similar stainless steel engine cover hinge and a small part of it is starting to rust. How can this be addressed? Do I need to get a new hinge, or can I remove the hinge, sand/grind the rust away and do some type of paint job?
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    Mercruiser 4.3L TKS Won't start when warm.

    Sounds like this is a possible TKS module/circuit issue. When the engine is warm, the TKS module is supposed to remain energized with the ignition off to keep the rich fuel mixture port closed off so a warm engine can start. If the module is not energized, the fuel mixture is going to be too...
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    Aluminum I-beam trailer question

    I have an I-beam trailer that has this channel in it where the brake lines and light wiring runs in. There is some type plug thing that is wedged in between the channel and the top of the I-beam every few feet or so to keep the stuff in place. What is this plug thing called and are they reusable?
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    Normal charging voltage

    All measurements using the multi-meter. I take it then you think the alt is acting up?
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    Normal charging voltage

    Batteries at 12.4 to start. Engine at idle right after start up....12.4 at the jumper terminals...eventually works its way to 12.8-12.9. Once at 12.9, off the alternator in to the isolator around 13.5-13.6. Rev to 800 rpms, off the alternator around 14.5 and around 13.5 at the jumper...
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    Normal charging voltage

    That's what I thought. The voltage at the jumper terminals is around 12.5v engine off...that's was just the one battery ON. I should check voltage on both. Any possibility the battery isolator is going bad....for all I know it's the original one...15 yrs old? I guess I should take a reading...
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    Normal charging voltage

    I have a 6.2 merc, dual battery. When I start up the engine, the voltage gauge starts off pretty close to the 10v mark and then then works it's way to the 13v mark (I'm thinking the gauge is not that accurate). Took a meter to it and right at start up, the meter reads low 12v like 12.1 or so...
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    Surge brake glide roller....almost lost one.

    Full wheel service before taking the boat out first time this year. Done about 4 outings with no problems. Last weekend was the first sign of something going on. I have the EZlube/Sure-Lube set up. I coasted to stop last night so I could do a reasonable temp reading. The only reason I decided...
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    Surge brake glide roller....almost lost one.

    I discovered this yesterday and I'm wondering how often such as issue can occur. I was out last week and had a feeling I was having a brake dragging issue as all 4 hubs were too hot to touch. Trailered out yesterday and the same thing...this time I had one of the thermal temp gun....the...
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    Integrated swim platform leaking?

    So it happened again...this time I was the only one at the ramp so I was able to take to the time to figure it out. Nice water fall (not a trickle) in this area (stbd side). The last two times I went out, nothing happened, the difference this time. I had the trailer further in to the water...
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