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High pitch noise..... |
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Yvan 
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Joined: August-22-2005 Location: Canada Status: Offline Points: 11 |
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 Topic: High pitch noise.....Posted: August-22-2005 at 11:29am |
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Hello all;
I bought a 1991 Ski-Nautique this summer the ''problem'' is : when running the boat at about 15 to 20 mph there is high pitch noise... Somebody mention that i am higgher in altitude and some adjustment must be made . Does it make any sense ??? Thanks ! Yvan |
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David F
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Joined: June-11-2004 Location: United States Status: Offline Points: 1770 |
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Posted: August-22-2005 at 2:51pm |
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Altitude should make any differences noise wise. Yes, with carb jetting, but not noises. I suppose the noise could be a bad bearing in either the alternator or raw water pump. Is the noise present in neutral or in gear or both?
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Yvan
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Joined: August-22-2005 Location: Canada Status: Offline Points: 11 |
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Posted: August-22-2005 at 3:15pm |
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O.k, thanks David F...
The noise is not present in neutral. At low and high speed, the noise is not noticeable.... But between 15 and 20 mph, the high pitch noise is very strong (anoying for both people in the boat and outside !) Yvan |
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David F
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Posted: August-22-2005 at 3:28pm |
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Ok, I think I know the problem. It is a high pressure issue within the PCM 1:1.23 reduction transmission. PCM has a kit to correct this problem. Basically, the kit adds a rubber hose that reduces the internal pressure and eliminates the whin.
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Yvan
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Posted: August-22-2005 at 3:53pm |
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Oh oh.....
 ...this mean that i will
have to remove the engine ? Yvan |
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David F
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Posted: August-22-2005 at 4:36pm |
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No, very easy retrofit. Engine and transmission stays put. Kit is installed externally. Call your local CC dealer or Skidim.
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Yvan
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Posted: August-22-2005 at 5:12pm |
I will try that and post the result Thanks again ! Yvan |
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Yvan
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Posted: August-23-2005 at 2:28pm |
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Hello David;
I just got an answer from a Correct Craft dealer (here in Canada) the dealer call a PCM tech advisor and he said that such a kit doesnt exist !!!!! ...and the only thing that he can do (the dealer) is replace the transmission for a newer model....... Well.....i'm not very surprise.... i've e-mailed Skidim and still waiting for a reply.... Yvan |
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David F
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Posted: August-23-2005 at 4:11pm |
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See this link and determine if it fits your boats symptoms...thread link
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Yvan
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Posted: August-23-2005 at 4:40pm |
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Hello again.....
Well, he is talking about the noise at idle....and i can't ear it at idle... ...and some vibration.....i dont have... He is talking about a 12'' quarter high pressure hose with high pressure fittings... Anyway, i'm ready to try this...I'm sure i can find this here....or find someone who can ''built'' it for me ??? Yvan |
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