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  1. Scott06

    Broken Forward Gear? Cause?

    It could be the gears and or bearings had corrosion from sitting. Did i read that correct it was sitting from 1985 =>2017? When I bought my current boat in 2015, it was a 2004 that had only 37 hours on it. the lube that came out was pretty dark, assume it had never been changed. Had zero issue...
  2. Scott06

    Mercruiser Setting Timing on 3.0L

    if you have zero compression in two adjacent cylinders that would normally point to a blown head gasket between them. yes unplug center wire on dist , throttle wide open, engine warmed up. Fuel pump doesn't matter as once the bowl is full the float/ needle and seat will close off fuel supply
  3. Scott06

    Screeching Noise from Frankenstein 383

    what you outline is the same as others post on the car sites. While this provides many benefits, the guys who think it will be plug and play vs a carb are disappointed. I know running a carb I will have to rebuild it 1-2 times during the lifespan of owning the boat, but I also like I can do...
  4. Scott06

    torque or angle torque

    the bolt is what stretches. I think bolts designed this way hold their torque better. Mini uses it on the cam and crank sprockets there are no keys ways or traditional timing marks. You buy a tool to index the cams, put a pin in the flywheel, tension the timing chain and lock them down with...
  5. Scott06

    Screeching Noise from Frankenstein 383

    I'm the opposite I prefer the carb on my boat as it can be fixed with simple hand tools. So in your experience it holds up ok? My other hobby is muscle cars and you seem to hear mixed reviews for folks, mostly that some of the systems are not OEM quality systems like on modern cars
  6. Scott06

    Engine mount nut sizes

    2003 vintage since I turned a 4.3 into a 5.0 I technically dont have a merc serial. Original 4.3 serial was OM694685, that is what the side engine mounts are from. I am going to do an alignment - what size are the adjustment nuts on the side engine mounts? I thought they were 1 & 1/16" or 1 &...
  7. Scott06

    Prop Swap opinions...

    this has been my experience with 4 blades as well, not only for my own boat but a neighbors as well. be interested to see if you can hit 4800 maybe a tad higher. Not that you have to wind it out that often but when pitched to the top end of the WOT rpm range throttle response is much better...
  8. Scott06

    torque or angle torque

    the rachet head broke set at 85 ft lbs. I bought a used snap on, No sense screwing around with angles on a cheap wrench. Because this was middle of doing a timing chain on the wife's mini I punted and just marked the bolt head for the angles, which also worked just fine as long as you can get at...
  9. Scott06

    torque or angle torque

    This POS, yeah it’s sold under abiut 15 different brands https://www.harborfreight.com/38-in-drive-5-to-100-ft-lb-digital-angle-torque-wrench-64915.html
  10. Scott06

    torque or angle torque

    On the wifes mini I bought HF angle torque wrench broke on the second bolt... so I just marked the bolt heads with a sharpe for the angles. I dont think the angle is that precise
  11. Scott06

    destroyed 2 gimbal bearing tools trying to dislodge a seized bearing. still stuck

    I used an axle bearing puller, foot of 5/8" fine threaded rod and a piece of C channel this was after the bearing broke the jaws on my big F'ing slide hammer, was original had been in there 20 years but never got wet. Not sure if it was crooked in there or what never had so much issue...
  12. Scott06

    Merc 350 bolt v 2 barrel carb fluctuating RPMS

    Yes . Some mercs have two grey wires on the negative coil post. One tach one to module. If you have two disconnect the tach one. Some mercs have the tach signal wire bonded to the single grey off the coil. In this case tach the signal wire off the back of the tach to test
  13. Scott06

    Merc 350 bolt v 2 barrel carb fluctuating RPMS

    i have found them used on ebay in the past for $200-250 range
  14. Scott06

    Screeching Noise from Frankenstein 383

    yeah good for a relatively easy solution. will be interested to see how the sniper works for you
  15. Scott06

    Merc 350 bolt v 2 barrel carb fluctuating RPMS

    I would disconnect the tach and see if the mis in timing goes away. Is there play in the distributor shaft/rotor? Also verify that voltage is not dropping to positive side of coil. Also may disconnect the shift interrupt for testing if it is an alpha It could be the module but might look to...
  16. Scott06

    Screeching Noise from Frankenstein 383

    was it leaking vacuum or just noise from the airflow through mismatched bore sizes
  17. Scott06

    1987 Merc 180 (“470” 3.7 litre) won’t idle

    Purple powers the coil when in run not in diagram linked below it is a resistance wire, everything but this resistance wire will be 12 v, the resistance wire drops it to 9 v at the coil when in run. 12v is only supplied off the purple yellow during cranking. get the factory engine manual for...
  18. Scott06

    Rotax 717 and 720 reliability

    it does come down to how they were maintained, oil used and if they ran lean. If compression is still good that likely means it was reasonably cared for. Not exactly the same engine but we just sold our 2004 GTI RFI LE (787 engine) with just shy of 300 hrs on it. We bought it with about 100...
  19. Scott06

    salt water in single cylinder

    Michigan motorz is worth a call to they have remans as well as new base engines
  20. Scott06

    Mercruiser 3.0 won't "lock in"

    Many here speak highly of the SEI drive as one can bolt it on and go, plus it comes with a 3 year warranty. So for an older boat owned by a DIYer its a good fit. I personally have never had a drive I maintained let go so I have never used one. you got the idea keep and eye on the lube level and...
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