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  1. Scott06

    Thinking of buying a Maxum 2400 SCR. Thoughts?

    I've owned two Sea Rays and I would freely admit that, especially the smaller Sea Rays. The two I have had are a 1991 Sea Ray 170 (had it for 20 years) , and currently a 2004 Sea Ray 200 Sport. There was more of a difference especially on the interior finish level on the '91. The 2004 not much...
  2. Scott06

    Mc-1 wont go all the way

    I would try the aligning where he smacks the alignment tool to center the bearing near end of this video
  3. Scott06

    Mercruiser 4.3 carb weep

    An item i recently found is a copper flare washer like these https://pontiactripower.com/products/copper-flare-gasket-for-3-8-fuel-lines?_pos=1&_sid=a7eb5f707&_ss=r i assume they are from hvac but work great on sae flare fittings, especially when tightening in fragile carb bodies. and @achris...
  4. Scott06

    Is my coupler off ? looks like it and drive won't go back in ..

    What year is the boat? Newer ones use less or no structural wood, but older ones can be an issue . You can check real easy by drilling 1/4" holes into stringers and transom down low. If the wood comes out dry you are fine, plug with 5200 sealant and go boating. If its a new to you boat might be...
  5. Scott06

    Drive availability

    Well hopefully you have it for summer 2023...
  6. Scott06

    Thinking of buying a Maxum 2400 SCR. Thoughts?

    either bad batteries, non functional battery switch, loose or corroded connections and or undersized or corroded cables
  7. Scott06

    Q. Factory : 2022 Mercury 565 racing engine.) & ( Mercury 496 Mag H/O bravo one ) boat spd (Q).

    Yeah What he said... if you legitimately lost 10 mph you have either added a bunch of weight via stuff (generator or batteries?) or waterlogged hull, or you must have very low compression on engine. I assume the initial 70 mph speed was accurate via gps?
  8. Scott06

    New Engine Replacement - Engine Died and Hydro locked after 5 hrs!?

    I see no reason you can't trim those down . It looks like a strengthening rib/stringer. If you remove a lot of material you may have to add something back in or double up material like sistering a floor joist or use some type of angle iron ...
  9. Scott06

    Is my coupler off ? looks like it and drive won't go back in ..

    You need an alignment tool to determine if the alignment is off Cant tell from photos. put grease on the tool, put it into the coupler , the coupler will leave witness marks or marks in the grease to allow you to tell if it is centered. If you google mercruiser alignment tool you can find them...
  10. Scott06

    Conversion

    I'm assuming you have a newer replacement block that doesn't have a provision for a mechanical fuel pump? you need to wire it up through a oil pressure switch. If you follow the merc wiring diagram you can see how to properly wire it up. The merc pumps are made by airtex which is available at...
  11. Scott06

    Mercruiser 4.3 Vortec Backfire and no start

    Yes you have a TB V shown in your photos attached to exhaust elbow
  12. Scott06

    Merc 4.3 Vortec Conversion

    https://www.summitracing.com/parts/edl-1478 would think this kit would work.
  13. Scott06

    Mercruiser 4.3 Vortec Backfire and no start

    Yes you need to put it in base mode to set the timing. As others have said the compression is good enough that the engine should run. It does seem to cough and with no backfire clearly timing should be closer. Agree with NOLA timing or firing order must still be off… can you post a video of...
  14. Scott06

    Mercruiser 3.7 / 470 Holley EFI Sniper.

    Perfect. On the harden one they have a couple small holes on either side of oxygen sensor for cooling, and they claim their anodizing resists the corrosion sometimes seen with aluminum on the raw water side, but may e you can find a way to keep this on the closed side of the cooling
  15. Scott06

    Mercruiser 3.7 / 470 Holley EFI Sniper.

    If you need to stab an o2 sensor in you will need something like this https://www.michiganmotorz.com/o2-spacer-stock-mercury-riser-wet-joint i just bought one to sanity check the jetting on my boat With my air fuel ratio meter. One thing the AFR meter companies mention is for marine...
  16. Scott06

    Thinking of buying a Maxum 2400 SCR. Thoughts?

    I think you will a bigger engine than a 5.0 with 220 hp in a 24 ft
  17. Scott06

    Mercruiser 4.3 Vortec Backfire and no start

    Number on cylinder on tdc of compression stroke & rotor pointed at number one cylinder is all you need to worry about, get it running then set timing with light, idle speed and mixture.
  18. Scott06

    Mercruiser 4.3 Vortec Backfire and no start

    Not flywheel on the balancer don’t worry about where dist is now you will be pulling it out to retime anyways You are 180 degrees out being on exhaust stroke so #1 will have to move
  19. Scott06

    Mercruiser 4.3 Vortec Backfire and no start

    Yes needs to be on compression stroke . If you cant see your rockers to verify both valves are closed put your thumb over the spark plug hole. It will only build pressure coming up on compression stroke not exhaust. if you time it on tdc of the exhaust stroke it will back fire as ignition will...
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