Recent content by Jimmy Buoy

  1. Jimmy Buoy

    2003 410 Sundancer 410 Shaft Seal

    That's why I mentioned Lasdrop if the seal units were going to be replaced. I've had Tides on my 340 Amberjack. The issue with them is that they are a "lip" seal. The shaft spins on the seal's lip, but with that comes some friction. Sometimes a little friction but sometime a lot of...
  2. Jimmy Buoy

    2003 410 Sundancer 410 Shaft Seal

    Not an expert with diesels, but the mechanics are probably similar. The props will have to come off, coupler removed from the shaft and the shaft slid back enough to fit a new seal over the shaft along with a second (or maybe two more) to be used as a spare for next time. Sounds easy but in...
  3. Jimmy Buoy

    2010 sea ray 390 sundancer with bravo 3 outdrive

    I believe they've always used them on their "X" and "XR" drives only.
  4. Jimmy Buoy

    2010 sea ray 390 sundancer with bravo 3 outdrive

    Agreed. And once Merc's original rusty hardened STEEL steering pin is replaced with a new STAINLESS pin along with a new seal and a grease fitting to lube the shaft annually it should never be an issue going forward. In fact, it will be better than new IMHO! The main reason the seal leaks is...
  5. Jimmy Buoy

    Battery isolator question

    You may be confusing "isolators" with "battery selector switches". Isolators work like one way valves, allowing current to flow one bank of batteries to another when a charging current is present. If no charging current is present, current will NOT flow from the battery bank to another. From...
  6. Jimmy Buoy

    Closed cooling system drain Mercruiser 5.7

    Each engine setup is different, but I would assume that you'd remove the Blue Tube attached to "H" (engine circulation pump) and drain. Next would be to remove both the starboard and port side engine block drain pugs (they're low and center on the block just above the oil pan). To be thorough...
  7. Jimmy Buoy

    Hi pressure fuel pump leak

    This is unbelievably dumb, thinking that a zip tie would be adequate to hold this pump onto the o-ring fitting under pressure. I also question Merc's method of securing the pump. It appears to be held in place by the unit's plastic cover that is only connected to the backing plate with plastic...
  8. Jimmy Buoy

    Surging Idle - 490 HO

    I believe all 496's are the same (I had 2 8.1S engines which are the same but for inboard applications) and they sure do have an IAC. It's on the back of the engine on the intake. Follow the small black tube from your throttle body back and it is attached to the IAC. Easy to replace and GM...
  9. Jimmy Buoy

    Boat mechanics

    You're not alone on this! Same thing everywhere. Frustrating.
  10. Jimmy Buoy

    Hi pressure fuel pump leak

    As already mentioned, you have the older style cool fuel unit. Same as my last two boats had. Compared to the newer units, yours is very simple, robust, and usually trouble free. I've seen more issues with multiple replacement pumps failing (seizing) than anything. One thing to consider is...
  11. Jimmy Buoy

    Hi pressure fuel pump leak

    With that much fuel pooled in various spots in the ER, I would assume there is some degree of risk of fire/explosion as they work to remove the engine. Given the lack of any real working room on the engines in the 320 it $3000 sounds more than reasonable for a labour estimate. My last boat had...
  12. Jimmy Buoy

    Steering help-95 Sundancer 250?

    Thanks for the reply. Not really an expert on how Merc's hydraulic steering works. Could it be that once the engine is running (and the steering pump along with it) it might be more responsive with the same test?
  13. Jimmy Buoy

    SeaRay 315 MerCruiser 4.3 EFI - after 1500 hours

    Typical marine engine killers are overheating (lack of cooling water - ineffective raw water pump), water ingestion (exhaust manifolds leaking internally), or running the engine near or at the top of it's rpm for most of the engine hours. As stated, regular maintenance will minimize the first...
  14. Jimmy Buoy

    1998 330 Express Cruiser with 6.2L 350's - Is it enough?

    I looked at a 400 I looked at a 400 Dancer years ago but declined due to the fact that it had 7.4 gassers. Many at my marina said "don't buy it - it will be a dog". I passed on the boat without seriously considering it. Mistake in hindsight. A few years later a friend bought a 43' Wellcraft...
  15. Jimmy Buoy

    Where is the water going?

    There is a product for sealing hot tub leaks (made in Canada). You'd be best to fill your empty water tank with hot water along with the appropriate amount of the leak sealant. Might be worth a try for $30...
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