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  1. J

    Selecting the correct prop

    I just purchased a new (to me Boat), it's a 2000 Four Winns Horizon 170 with the 4.3L engine with the SX-M outdrive. It was owned by a doctor with plenty funds so it was very well maintained, I noticed on the info plate on the engine WOT should be 4500 Rpms, it will run 51MPH at 5000 Rpms with a...
  2. J

    Can't Win For Losing

    So after installing my freshly rebuilt 3.0 Engine i hear a slight knock towards the back of the engine after using a home aid stethoscope I finally pin pointed it to the flywheel housing, so I decided to pull the foot off and check gimball bearings and found that those are in great shape. I...
  3. J

    Engine Break in

    So I've finally finished rebuilding my 97 3.0GSMLKD engine and it's come time to break in the new engine and after reading a few threads about needing a zinc additive with flat tappet camshafts I'm suddenly afraid that if I don't do this correctly I'll be replacing a camshaft, so the question is...
  4. J

    No ignition Fire! PLEASE HELP!!

    I have a 94 Polaris SL 750 that will not turn on, the only thing that your suppose to do is install the lanyard under The stop switch, there isn't a on/off switch other that that, I've tested the switch and it's working but I can't get any electronics to come on, no gauges, trim or starter. I'm...
  5. J

    Exhaust riser boot orientation

    Ok so I have a 97 3.0 gs and it's overheating only with the thermostat installed and I was reading and there are a couple of people sayin that the restrictor plate between manifold and riser is marked wrong and it needs to be turned 180degrees so I buy gaskets and take it apart and looking at it...
  6. J

    97 3.0GSMLKD Hot water outlet?

    Ok so I've posted before about the running hot problem only with the thermostat installed.. We'll now the exhaust manifold, the riser and the sea water pump is brand new and also brand new thermostat and still temp steady rises at cruising speed.. I got to looking to make sure all my hoses are...
  7. J

    Engine runs hot with T'stat installed

    I have a 97 3.0 GSMLKD and when I purchased the boat last year it did not have a thermostat installed so after reading that it does need one I purchased one and installed it we'll at cruising speed the temp will continue to rise and when I come to idle it will sloooowly return to normal and if I...
  8. J

    which cfm carburetor should i have

    Engine is 1997 3.0GSMLKD I finally purchased a reman holley carb and the guy told me that he had the original one for my boat well i noticed that it is only 300 cfms and im thinking it should be 500cfms. Does anyone know what it should be the volvo penta original part number is 21610333 but...
  9. J

    Several questions...........

    Ok so first my engine is a 97 3.0GSMLKD and I purchased a new carb it is a holley 2bbl and It has a dead spot in it but I'm thinking it has st to do with the timing because if you advance the timing while at around 1100rpms the engine runs excellent at cruising Speer and wot but if you,return...
  10. J

    3.0 gsmlkd starter replacement?

    Ok starter replacement easy easy task..... So I thought. I get the starter off and look for a delco remy replacement and all I can find is 11 teeth replacement this is according to the volvo penta store parts breakdown. We'll the starter that is on there is 9 teeth so my question is will 11...
  11. J

    Choosing between Rochester or Holley

    I'm about to replace the carburetor on my 97 3.0 Gs and I can not decide between the 2bbl holley or the 2bbl rochester. I just want a dependable carburetor that's fairly easy to tune. I'm 25 and have had little experience with carbs and am not the best at tuning them, I live in a generation with...
  12. J

    Help 97 3.0 gsmlkd carburetor identification.

    I purchased the boat last year and ran it a few times and have had good luck besides the minor things I had to replace like the sea water pump and the intake/exhaust manifold but other than that the engine runs good so I decide to give the engine a good tune up and get it ready for this summer...
  13. J

    Restrictor plate between manifold and exhaust elbow

    on the 3.0 GSMLKD between the exhaust manifold and the elbow that attaches to the exhaust there is a plate that goes between the 2 that only has a hole in one side ( its square) i believe in that elbow there is so much buildup that water can not flow through that one channel fast enough to keep...
  14. J

    volvo penta 3.0GSMLKD Hard to shut off

    ok i have a 97 volvo penta 3.0 it starts good and it runs good its just when it gets normal temp and its only sometimes when you turn the key off it wants to sputter for a sec and then cut off. ive checked for voltage at the coil and it cuts off as soon as you turn the key off is there anything...
  15. J

    Elbow That goes from exhaust manifold to exhaust pipe???

    Well i just noticed water leaking from the bottom of the intake/Exhaust manifold so i decided to take it off and replace the gasket, so when i get it off its cracked in 2 places, so i have to replace it and also the elbow that bolts to the back of it that connects to the exhaust pipe is very bad...
  16. J

    Volvo penta cobra SX-CT1 HELP REMOVING OUTDRIVE

    Ok so im new to the boating hobby and could use a little advice. Im a diesel mechanic so i think i have the skills just need the knowledge, ha but i have a volvo penta sx ct1 outdrive and the trim line on the right side of the foot is leaking so ive tried and tried to get to the inside line but...
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