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  1. Q

    Volvo Penta 3.0 - Fuel lag and shakes

    More than likely needs the fuel tank emptied and or carb cleaned. Especially after the mention of only being used 2 times in a year
  2. Q

    TWIN 1994 VOLVO PENTA 8.2 OVERHEATING

    Is the boat in the water or out ?
  3. Q

    5.0GL-C won’t get on plane

    I’d run it off a remote fuel tank. See what happens
  4. Q

    Viibration

    How’s the propeller ?
  5. Q

    1992 Volvo Penta 230 with SPA-1 Overheating

    Ok. So the cap is either doing it’s job and releasing pressure because of another issue, or it’s what’s at fault. If the cap replacement doesn’t work. Then it’s likely a cylinder head issue to be the favourite, if a couple of other reasons. I’d do a gas test if that’s the case, like you...
  6. Q

    Performance issue

    Good luck. I’d try everything you have for good measure and comparison! Good luck
  7. Q

    Performance issue

    To be honest there are lots of possibilities it could be otherwise. So many variables with such matters. Hard to believe for some, but I know that even the smallest of things can affect a boats performance quite drastically. Even in fresh water, my boats can lose 5-7 mph in performance between...
  8. Q

    Performance issue

    The behaviour between 4 and 3 blade you’ve mentioned can be true. But can also just as easily have exceptions too. 4 blades can often have a larger diameter and heavy things to spin up too. But perhaps more relevant to your situation, it’s a very rare thing to have both props on a two or duo...
  9. Q

    Volvo 5.0 gxi Stalls at idle. Hard start.

    Sure sounds like your IAC is trying to control and counter another issue. Is it possible that the throttle position at idle has been messed with previously to counter another, previous or underlying issue ? Have you had a look into the throttle body to check what that’s actually doing for...
  10. Q

    Proper way to place engine compartment/bilge fans?

    Down low.
  11. Q

    Performance issue

    I’d maybe try and find out what other identical models like yours came with, prop wise. Usually bravo 3 drives are propped well from new. Not often there is the need to mess with the props. I’m not sure many would consider going from a bravo 3 set of original stainless 3 blades to 4 blades…an...
  12. Q

    Performance issue

    Sounds like you are over propped as AD suggests. These mpi really need to be at or near the top of the rpm range. That said, these kind of boats are greatly affected by design. As in, lots of weight towards the rear, if you have passengers and more crucially, lots of fuel onboard. The tank is...
  13. Q

    1992 Volvo Penta 230 with SPA-1 Overheating

    Have you the internal cooling thermostat in it ? Different from the raw water cooled by about 20 degrees im sure. Apart from that. Check your coolant tank cap seal and function. If these are faulty they release pressure before they should and the pressure of the coolant system reduces to...
  14. Q

    Creaking While Steering

    Does it do this with the engine fired up and power steering active
  15. Q

    Mercruiser Oil Pressure Alarm switch troubleshooting

    Hi. I don’t think it’s normal for the alarm to sound for a few seconds until it builds oil pressure. Not at all, I’m sure. Is it definitely an alarm for this reason ? Is it perhaps more likely that it’s an alarm for low voltage for a few seconds as a result of a failing alternator or slipping...
  16. Q

    Fuel Injector Question

    You may have a more serious issue if the injector wasn’t fuelling properly (if I’ve read you right). You may have a damaged valve or worst case a damaged piston as a result. Hopefully not.
  17. Q

    Yamaha to Mercruiser 3.0 engine components swap

    Never worth conversion to Fi. Especially not on a 3.0.
  18. Q

    Fuel Filter??

    Hi. Out with being a fuel issue…it could be a result of other things that are making the boat struggle to plane. Like propeller damage, outboard trim position not fully down, Hull growth…engine health or additional weight in the rear of the boat. I’d expect if it is one of these things, then...
  19. Q

    Merc cruiser 5 0 backfire

    Think it might be a little less than that. Not sure. If it’s rev range is the usual 4400-4800. Around 5000 or close to it I think others have popped at that I’ve been on similar. Weird for sure the first time I heard it. Not like the usual limiter on later models like mine. let us know how you...
  20. Q

    Merc cruiser 5 0 backfire

    Definitely Scott. Very easily confused with a carb backfire or lean condition. Sounds exactly like that.
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