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Engine loosing power |
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subli572 
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Joined: August-09-2005 Location: Mexico Status: Offline Points: 23 |
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 Topic: Engine loosing powerPosted: January-09-2007 at 4:36pm |
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Hi, happy 2007 for everyone. I have a '89 Ski Nautique, the engine has arround 1,150 hours and recently I'd noticed that the engine is loosing power, especially when we do the slalom course I can feel how the boat breaks when the skier pulls. What do you suggest me? rebuild the engine?
Thanks for any advice, |
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todicus
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Joined: July-10-2006 Location: Napa, Ca Status: Offline Points: 493 |
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Posted: January-09-2007 at 6:22pm |
Can you clarify your statement ?? There are lots of things you can check, but don't quite know what you mean yet. |
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boat dr
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Joined: June-27-2004 Location: United States Status: Offline Points: 4245 |
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Posted: January-10-2007 at 8:44am |
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Sub, a motor that has that kinda hours on the clock will slowly lose power ,and not always because of internal wear,rings, valves, but because the timing chain streches. this not only retards timging but also retards your valve timing as well. Easy test, pull dist. cap,turn your engine over, plugs out,with a breaker bar. when you have taken up the slack, the rotor will move,now reverse rotation, the rotor should move at the same as the crank . the "lagtime" tell you how much slack or stretch is in your chain and gears............ boat dr
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subli572
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Joined: August-09-2005 Location: Mexico Status: Offline Points: 23 |
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Posted: January-11-2007 at 4:02pm |
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Thank you for your answers.
Todicus, what I mean is that when the skier is pulling, tha boat lose power reducing the speed on every pull, its very hard to maintain the speed of the boat while the skier is on the course. boat dr, I'll try what you're telling me, is there any gaskets or something I have to change for better performance? |
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79nautique
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Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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Posted: January-11-2007 at 4:05pm |
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the gaskets are not going to help performance wise. To fix the problem if it is a stregthed timing chain is to replace the timing chain then that will correct the valve timing relative to the piston movement.
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boat dr
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Joined: June-27-2004 Location: United States Status: Offline Points: 4245 |
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Posted: January-14-2007 at 5:59pm |
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79,i know i'm from the south and we speak a little different than you and sometimes we have our own name for certain parts,But what the hell is this???????????????
'"a stregthed timing chain " |
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Hollywood
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Joined: February-04-2004 Location: Twin Lakes, WI Status: Online Points: 13516 |
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Posted: January-15-2007 at 10:12am |
'doc stretched + lengthened = stregthed |
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GottaSki
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Joined: April-21-2005 Location: NE CT Status: Offline Points: 3363 |
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Posted: January-15-2007 at 11:35am |
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Maybe his skier is getting better.
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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79nautique
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Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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Posted: January-15-2007 at 12:52pm |
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where's spell check, kevin got.. what's the problem doc... got to spell everything out correctly\\\\\\\//
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subli572 wrote: