Recent content by Jiminthekeys

  1. J

    25w-50 in a 3.0L ?

    I got a few free gallons of mercury racing synthetic 4 stroke 25w-50 oil and I am wondering if this would be safe to use in my mercruiser 3.0l or should I sell it and just stick with the 25w-40 I've always used? I live in the Florida Keys and summer temps are 90 and above with winter temps 80-85
  2. J

    Sea Ray 185 3.0L

    I have a 2007 Sea Ray 185 Sport with a 3.0 Mercruiser Alpha 1 Gen 2 2.0.0ratio drive. My current prop is a 3 blade black max 14.5X19 stock prop. I currently hit my RPM WOT range of 44-4800. My WOT with normal gear and load is about 4800 trimmed out for best ride and get a top speed of about...
  3. J

    Mercruiser 3.0 Power Steering pump

    Ok, after chasing a high RPM metalic rattle sound for about a year I determined the noise is coming from the power steering pump. I am not sure if it is the pump or the pulley bearing though. As far as power steering assit goes it works good just got the god aweful rattle at RPM about 4000...
  4. J

    Mercruiser rattle noise at high RPM

    I've been trying to narrow this problem down and there was a previous post. Old now and not getting any more replies. What I have done so far is new ujoints, gimbal bearing, plugs, full tune up, set timing to *2ATDC new fuel filters all the way around, new 90Octane marine fuel, checked...
  5. J

    Chatter/Rattle coming from Alpha 1 Gen II

    Re: Chatter/Rattle coming from Alpha 1 Gen II Plugs 1-4 from right to left Carb Filter. A few particles but nothing major. I replaced anyway. Video of engine Idling. I can maybe hear what I think is the U joints but I think it may be normal...
  6. J

    Chatter/Rattle coming from Alpha 1 Gen II

    ok, here's the story. Took my boat out one day 2007 Mercruiser 3.0L with Alpha 1 Gen 2 and I started to hear a chatter/rattle sound coming from the outdrive area when trimming up slightly (like a tap or two) at high RPM (3500-4000) or making moderately tight turns at the same speed. The noise...
  7. J

    Rattle from outdrive area

    Ok I started noticing a rattle when turning while trimmed up on plane so I had thought it was worn ujoints. My mechanic replaced the worn ujoints and while in there I had him replace the gimbal bearing and bellows. Took the boat out the other day and there is no abnormal sound when trimmed all...
  8. J

    New Mercruiser OEM Manifold and riser. Painted?

    I just got my new mercruiser brand manifold and riser in for my 3.0L. I was a bit impressed they came with all the gaskets, new fuel pipe, manifold fittings etc. Could have save 25 buck or so if I new that! guess I have some spare parts to slap some new gaskets on it next year anyway... My...
  9. J

    Head - Manifold Mating surface

    Anyone have any suggestions on what i should do with the corrossion on head mating surface? Do i need to have it machined before i install a new manifold? This is on a 2007 Mercruiser 3.0L
  10. J

    2007 Mercruiser 3.0L Manifold/Riser change *need advice*

    Re: 2007 Mercruiser 3.0L Manifold/Riser change *need advice* Thanks Don. Yes I will definitely be replacing both the manifold and riser. After I took these off and realized the extent of gasket failure and water intrusion I new I was lucky. I was just surprised it was this bad on a 5 yr old...
  11. J

    2007 Mercruiser 3.0L Manifold/Riser change *need advice*

    I hope someone her can give me some sound advice on my corrosion concern. I was changing the old in my 2007 sea Ray with a 3.0 Mercruiser inline 4cyl. During the maintenance I noticed a build up of running rust from the riser to manifold and also a bit of rust/corrossion on the lower rear of...
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