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    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    The Mustang I pictured is a modified early 2000's 4.6, I like it a lot though. Been on the boat again twice this week so far... I previously mentioned the engine temperature swings, same again this week but not getting too hot now. Started out at light throttle with the temp fairly constant...
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    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Been on the boat on the little river again today, just by myself. Asked my missus, son, daughter, sister, friends, and a customer (whose car I still had in the yard) if they'd like to come for a ride on the boat but they were all either busy or didn't want to, I wanted to so went myself and had...
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    No Acceleration when cold Slow Acceleration when warm. No top speed

    Could be many things. Is the mixture lean?
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    Star trek stuff.

    Some sort of a pun with Uranus
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    Star trek stuff.

    Been meaning to ask, I can 'like' or 'reply' but where's the 'laugh' button?
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    Star trek stuff.

    An interesting read
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    2002 5,7 Mercruiser exhaust manifold keeps cracking - 5 times this summer

    Plenty people are more experienced with boats and marine exhaust manifolds than me but I do know a lot about fuelling/mixture. The amount of fuel an injector will flow for a given pulse length is related to the square root of fuel pressure minus manifold pressure, so the actual effect of none...
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    2002 5,7 Mercruiser exhaust manifold keeps cracking - 5 times this summer

    Nothing wrong with the injectors then. Tbh even if there were a problem with injectors or wiring I don't think it would lead to a cracked manifold. There should be enough water flow through the manifold to prevent hot spots from a lean mixture, if mixture was so lean might expect a burned...
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    2002 5,7 Mercruiser exhaust manifold keeps cracking - 5 times this summer

    Do you know for sure the manifolds are cracked or do you assume they're cracked because water gets into engine cylinders? I can't see how anything besides sudden heating / cooling (lack of or inconsistent cooling water flow), manifold torqued onto a cylinder head that has exhaust ports not flat...
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    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    I'd need to recheck but I seem to remember most wires being similar gauge except the red/yellow main feed to the helm being thicker. I wouldn't expect a 1.5V drop on the red/yellow over the fairly short distance from the engine to the helm. I agree the problem could be dirty/oxidised connections...
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    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Thanks Lou, I'll re-read your posts about winterising again when the time comes, hopefully get a bit more boating done before then. Still haven't used the boat since before my last post, planned on using it on the sea just before then but the weather forecast was bad. Still haven't checked...
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    Barefoot skiers?

    Always found 2 Skies easy but I remember dad and his friends learning mono-skiing, lots of falling off and bouncing over the water. They learned mono-skiing then tried barefoot, method was to go really fast then try to kick the ski/skis off and stay up, none of them managed it for more than a...
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    1977 Ford 302 Rebuild Tips and Advice

    I rebuilt my boat's 1996 Ford 302 engine. In case you're interested the link below is to a thread I started around June last year after just buying the boat when I didn't even know for sure which engine it had. The thread goes through me lifting the engine, rebuilding it with new pistons, new...
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    Bilge Pumps Not Working

    Thanks. Yes I have looked the boat over, heh, I rebuilt the engine, rebuilt the trim pump, fixed wiring issues. Thanks, yes I'll read the other thread and won't take continue to take this thread off subject.
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    Bilge Pumps Not Working

    I fitted my current pump in place of the old broken one but didn't dismantle it to check the internal design or try to backflow water through it. I expect water would backflow through it, what do you think?
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    Sharrow propellers

    I thought the Sharrow prop in the test was aluminium? My first thoughts were the test/review seemed like an informercial but I don't know anything about Boattest. Keeping an open mind, can't see me ever buying one unless prices become close to standard props. Remains to be seen if they'll...
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    Bilge Pumps Not Working

    Yes 2 one way valves would make it work. Don't know how much (without a one-way valve) a bilge pump would restrict reverse flow when it's off. For my purpose I'd want them to be quite restrictive to reverse flow when turned off.
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    Bilge Pumps Not Working

    Quick question - If I fitted a 2nd bilge pump could I Tee the output from both pumps together so still just have the 1 outlet hole in the side of the boat? Or would that mean that if only one pump was pumping it would backflow the other pump so just circulate water around the bilge instead of...
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    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    The old stat is 160F. I can't check the new stat now it's fitted, I seem to remember it being stamped 70C (which is 158F) or a little cooler like maybe 65C (which is 149F). The designs are almost identical but the old stat has a small triangular shaped cutout at the edge of the middle part...
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    Trailer tongue bracing? Help!

    I'd probably weld it myself or (like @Scott Danforth said) hire a mobile welder. Would expect welding to be easier than trying to temporarily strengthen it by e.g. drilling holes through it and bolting more steel to it. But if welding isn't your thing would you also be out of your...
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