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  1. J

    Trouble Starting & Tripping Electrics?

    Hi, yes that's correct on how it's set up. The fuse hasn't blown, wait a while and the electrics will work again. But, that fuze seems to be where the electrics sometimes fail when attempting to start, as I can bridge it with a separate cable and the blower and other electrics work. Upon...
  2. J

    Trouble Starting & Tripping Electrics?

    Hi, thanks for the quick reply. Just to check, are you saying that I have it wired up wrong on mine, or that they're all wired up this way from the factory and there's a better way? What would cause the electrics to trip, is the block fuze "thermal protected", as i can get it working again...
  3. J

    Trouble Starting & Tripping Electrics?

    Hi All, 2006 (ish) 4.3L Mercruiser with Carb and Thunderbolt Ignition Boat was running great last year. Just attempted to start the boat for the first time this season (on earmuffs water hookup). It turned over a few times sounding normal, then the electrics went dead. Nothing on the ignition...
  4. J

    1995 Mariah Barchetta 182 with 4.3LX and Weber marine carb start issues advice needed

    Are you following the "normal" cold start procedure? 1. Neutral 2. Crank for 5-6 seconds to prime 3. Two full pumps of the throttle 4. Throttle in slight forward position 5. Crank again to start
  5. J

    Mercruiser 4.3L Cranks, Has Sparks & Fuel, But Will Not Fire Up

    Hi all, I wanted to post a quick update and a summary of the fix, as I hate posts that don't share their outcomes - hopefully it's helpful to others. We managed to fit in a trip to the coast (Christchurch, Dorset, UK) for a full water test this week, which went great and we got very lucky with...
  6. J

    Water Pipe Temperatures on 4.3 Mercruiser - Hot / Cold?

    Thanks @AllDodge for the additional diagram and @Dieter for the written explanation, that doubly put's my mind at ease. I'm hoping to water test the boat this week and will keep a close eye on the gauges. I recently found the alarm buzzer under the dash had been disconnected by one of the...
  7. J

    Water Pipe Temperatures on 4.3 Mercruiser - Hot / Cold?

    Thanks @AllDodge, I think I'm getting my head around the basic direction of the waterflow now (y)
  8. J

    Water Pipe Temperatures on 4.3 Mercruiser - Hot / Cold?

    Thanks @kghost, i'll add that to my "tool box" list.
  9. J

    Oil change issue, Merc 4.3L

    I drained 0.2 Litres today and it was bang on the mark after, thanks for the info @GMcInroy, don't think I would have spotted change.
  10. J

    Water Pipe Temperatures on 4.3 Mercruiser - Hot / Cold?

    Understood. I was just hoping for a quick "that's normal and how it should be", or "nope, something's wrong and you need to look into that" response. I would have provided more info if looking for part's etc, I've just recently come across stories about "clogged inlets, manifolds and risers"...
  11. J

    Oil change issue, Merc 4.3L

    Thanks @GMcInroy, looks like i'll be draining 0.2 Litres out tomorrow. Quite handy really as 4.0L size is regularly available in UK.
  12. J

    Water Pipe Temperatures on 4.3 Mercruiser - Hot / Cold?

    I've just been through my owners Operating and Maintenance Manual and there's nothing in there regarding water flow diagrams. Then I realised you may have ment a professional workshop service manual @kghost ? Those I don't have. However, If they're easy enough to get hold of then I'll look to...
  13. J

    Oil change issue, Merc 4.3L

    I actually checked it both ways @kghost; it was higher before I ran it up (but presumed the new filter would take some), I just checked it again today and it's still a bit above the line (that's with 4 Litre can), an additional 0.3 Litres is certainly not needed at the moment. The Mercury...
  14. J

    Oil change issue, Merc 4.3L

    My 2004 4.3L is fitted with the oil drain hose (that can exit through the transom), should that drain 99.9% of the oil from the engine? I've just drained my engine via that method and gave it a new filter, but when I added only 4 Litres in, this has taken it above the mark already. It's supposed...
  15. J

    Need Help Identifying A Mercruiser 4.3L Component (Sensor / Switch)

    I'll see how annoying I find it when out on the water - I will most likely modify it some way or another. Thanks for the input
  16. J

    Water Pipe Temperatures on 4.3 Mercruiser - Hot / Cold?

    Thanks @kghost, I'll check the manual I've got when I get home (y). It's not something I remember seeing before, but I will check. From your description, it sounds like its running correctly. Mines a 2004, but I will check the manual.
  17. J

    Need Help Identifying A Mercruiser 4.3L Component (Sensor / Switch)

    Maybe it's something i'll get used to. Or put a light on it instead lol
  18. J

    Water Pipe Temperatures on 4.3 Mercruiser - Hot / Cold?

    Hi, Just a quick one I hope. I managed to get the engine running yesterday thanks to the help from this forum and wanted to double check the temperature of the water pipes (simply hot and cold) and if mine is normal. The boat is new to me and i've not had an sterndrive before. After a few...
  19. J

    Need Help Identifying A Mercruiser 4.3L Component (Sensor / Switch)

    Thanks @kghost, I really wasn't expecting it to sound straight away - as long as that is correct then that's ok. I might look at installing a short time delay device, giving enough time to start the engine before it's activated. Or having it only operate in the run position would be good.
  20. J

    Need Help Identifying A Mercruiser 4.3L Component (Sensor / Switch)

    I connected the alarm back up today and it sounded as soon as the ignition was activated - constant. I presume that's why the previous owner disconnected it, rather than finding the problem. Or is it supposed to do that? Before I go looking for a problem that doesn't exist :unsure: lol
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