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    Shift Assist Question

    It probably won't fit due to the studs on the shift assembly being too short. Why do you need a shift assist?
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    Merc 350 mag mpi HELP! 200°

    Looks like based on pictures you're taking temp readings at the exhaust manifolds. Yeah, they get hot. If you are getting 160 degree readings at all rpm/load ranges at the senders you are good. The outsides of the exhaust manifolds get extremely hot during normal operation
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    Shift cable ?

    Yes, but you need to rotate the input shaft to do so. Usually able to get the linkage to move in/aft somewhat easily but you'll need a stout grasp with pliers on the linkage to get it to move out/forward. This is of course while you are rotating the input shaft. The shift mechanism will be...
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    Trim issue

    Post #2 is where you need to focus and is most likely your issue
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    alpha 1 Gen 2 sterndrive broken lower drive shaft

    You'll need a new transom assy as well. And if efi a reflash of the ecm at a minimum
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    Shift cable ?

    That may be but without the drive properly installed it's useless. Plus without engaging the shift linkage, shaft and yoke in the drive there is no resistance on the cables as in your case As I stated the engine needs to be running with the drive installed in order to check the shift system is...
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    Shift cable ?

    Bravo drives don't shift when the engine isn't running. At least not very well/easily. In the video the engine and drive aren't installed and he doesn't attempt a shift. He actually mentions checking the shifting with the engine running once everything is installed In any case you need a new...
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    Shift cable ?

    Picture is blurry but can see the pressed end came off the outer cable. Is this alpha or bravo? And how did you adjust the cable?
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    Thunderbolt IV. 1986 454 inboard

    Control box as in ignition module/control or remote control box? If your saying ignition there's a couple good write ups on the thunderbolt ignition including troubleshooting in the stickies, top of forum page
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    Running boat on land with no prop?

    Agreed What really gets me confused is how in one thread you'll see some knowledgeable folks post that you must adhere 100% to oem recommendations, no exceptions and the next thread they're bashing manufacturer recommendations and say to not follow procedure and to not waste money on quality...
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    Alpha One II grinds in reverse

    You can do the adjustment in the water, in fact it's better due to the load on the prop in gear. Place the stud at the bottom of the slot. Shift the drive into fwd with the engine running and set the 6" spec on the lower cable. Then adjust the remote cable accordingly. Try your shifting...
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    PRT EMCT OVRHT alarm

    I'm not sure if the ecm reads an actual temp value off the ex manifolds or of its a threshold switch. Never used diacom on a mercury ec engine so can't say to what it'll show you. My guess is that because you are allowed to see engine coolant temp and sea pump pressure those two values plus an...
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    alpha 1 Gen 2 sterndrive broken lower drive shaft

    Could be bad luck, but not likely What is your idle speed? Is shift cable and throttle cable adjusted properly?
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    Running boat on land with no prop?

    Trust me muc, once these guys have their minds made up no amount of factual information is going to sway them. I'm with you on this one, I have much experience in the field and can confirm all the facts you are posting. The problem with this forum is when one is pragmatic it increases the...
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    Waterproof Thread locker

    I use red loc tite on helicoils. I use blue loc tite on the bell housing hinge pins and heat to remove the hinge pins for service. Never had a failure on either, ymmv
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    5.7L Mercruiser 350 MAG MPI Horizon Part Identification - What is this?

    Cool fuel module. The handle on top is for removing the fuel filter basket
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    WOT RPM too high. Where is the slip?

    Trim limit may be off and getting a slight cavitation at upper limit
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    Drive oil

    Sae 90, high performance
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    1984 228 305 carb problem

    My "hills" are facts. If you cannot observe reality your existence is moot and has no reason for reply You did not respond to post #27
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    Drive oil

    There is a great story about the bravo drive. Takes place in 1984 at lake x. 1988 proved fatal for most bravo 1 drives.
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