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    Need help locating serpentine belt part number

    Hey Guys, The numbers on the existing belt have just about all worn off and I'm not seeing one listed in the merc maintenance book. I've tried looking on a parts fiche and there's several options listed. Just trying to make sure I order the right one. This is a 4.3 TKS with power steering and...
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    Solving inaccurate tachs?

    Yes. I have a new timing light that shows rpms. In the midrange, the boat gauge seems to be spot on. It's on either end of the range where it seems to be off. I'm thinking maybe the gauge internals are just old and worn/sticky? Fuel: My needle bounces wildly even on smooth water. It's also real...
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    Solving inaccurate tachs?

    So my 20 year old boat has Faria gauges that mostly work okay. If I were to get a new rpm gauge and assuming everything is wired up correctly, would that then show a vaguely correct reading? Or would I need to look for more of an enthusiast/racing brand gauge to do that? (I'm aware of the engine...
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    Running Out of Fuel - Half Full

    Sorry, I meant once the boat "runs out", is it possible something else could still pump fuel out of the tank, so you could rule out whether it's the pump or something inside the tank blocking the flow. You could just put the other side of that pump into a gas can.
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    Running Out of Fuel - Half Full

    With the boat on the "new" empty, can you hook something else up to the pickup tube and see if you can pump any fuel out with something different?
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    Managed to brick a new Garmin 93SV

    So I picked up one of these from Cabelas last week on sale and bricked it the same day. I used brand new sandisk sd cards and everything was done on a spare battery next to my computer indoors that is on a UPS. 1) Updated Garmin OS - went fine. 2) Downloaded updated lakevu maps using Garmin...
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    Carbed 4.3 timing adjustment sanity check

    An update: The innova 5568 timing light I ordered off big river came in. I opted for that one since it includes an rpm readout, with voltage and dwell as bonuses. (Nice to have confirmation the alternator is working correctly.) Anyway, I got the engine timed correctly and did find that the...
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    3.7 to 4.3 swap

    Incoming “Converting my 4.3 to Penta thread…”. 🤣 In all seriousness, I am expecting enough hours on this boat, I should be looking into diesel. 😉
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    3.7 to 4.3 swap

    Thanks. I keep hearing people talk about the negative effects of going up to a v8 due to added weight and was wondering why folks aren't going with one of the all aluminum crate engines that GM sells. (Yes, I'm a Corvette fan.) It probably doesn't make much sense in current days, but there was...
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    3.7 to 4.3 swap

    While we’re on the subject - for a lake boat, what’s the reason for not wanting an aluminum block?
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    Running Out of Fuel - Half Full

    Fuel pump good?
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    2021 Ram Oil and fuel filters

    Sounds like a good excuse for a remote filter mounting kit.
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    Carbed 4.3 timing adjustment sanity check

    Thanks! On the dizzy, I figure since this engine is coming up on 25 years of age, might as well make sure the sparky bits are fresh.
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    Head with no holding tank, is this illegal?

    My local lakes in the SE US requires boats with poopers to register and have the overboard dumps disabled.
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    Carbed 4.3 timing adjustment sanity check

    Ty Sir! I need to order the parts to convert to dry joint exhaust manifolds and I was thinkjng ahead to doing the distributor replacement with plugs and wires, impeller, etc.
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    Carbed 4.3 timing adjustment sanity check

    Can you guys recommend an online place to order mercruiser parts from?
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    Carbed 4.3 timing adjustment sanity check

    Yes Sir. Have a fleet of old carbed vehicles around and an ultrasonic cleaner that just croaked. The water trickle trick is exactly what I did last week. Have done that in the past on other vehicles with success. Though I always thought using something like a garden spray mister in spurts would...
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    Carbed 4.3 timing adjustment sanity check

    Wouldn’t an “italian tune up” also help? I’ve certainly been doing that when conditions permit. 😁
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    Carbed 4.3 timing adjustment sanity check

    Aye - I have already done a bit of de-carboning as a step one. And there is techron in the tank currently. If none of this clears it up, I’ll “clean” that 2bbl carb right into a 4bbl. 😉
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    Carbed 4.3 timing adjustment sanity check

    Tyvm. Big river should have those to me this weekend.
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