Vibration
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=17206
Printed Date: November-18-2024 at 11:39am
Topic: Vibration
Posted By: jblmark
Subject: Vibration
Date Posted: April-20-2010 at 5:23pm
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I recently replaced the shaft and bushing. I carefully followed the alignment procedures gracefully givin in the forum (Thanks to all). I now have some vibration at low speeds. The vibration lessens as I gain speed. I am concerned about damaging the Transmission if I don't figure out where the vibration is coming from. I have not yet had the prop looked at. I plan on replacing in the next couple of weeks for a 4 blade. I was so concerend that I re-did the alignment procedure again. It seems to be tight with no gaps.
Any suggestions? Thanks again, JBLMark76 ------------- JBLMArk76 |
Replies:
Posted By: TRBenj
Date Posted: April-20-2010 at 6:08pm
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I take it you didnt have such a vibration before aligning? How bad was it out? Perhaps the previous misalignment was holding the shaft tight to the strut bushing, causing uneven wear- which is now resulting in vibration. Do check the prop, as you mentioned. ------------- |
Posted By: 8122pbrainard
Date Posted: April-20-2010 at 6:10pm
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Mark,
When you did the alignment, did you turn the shaft to check for a bent shaft forward of the strut? This is where you look for the gap between the coupling halves to follow as the shaft is rotated. Aft of the strut, you need to use a dial indicator on the prop taper. How's the prop? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: jblmark
Date Posted: April-20-2010 at 6:33pm
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I replaced the shaft becasue it was bent. While I had the shaft out I replaced the bushing. The shaft turns freely. I did rotate the shaft as I was cheking the alignment. I have not yet re-done the prop. I assume this may be the culprit.
Thansk, ------------- JBLMArk76 |
Posted By: eric lavine
Date Posted: April-20-2010 at 11:46pm
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ha, another guy who spells becasue like me, I always have to go back and change that one..
you dropped something on your foot and had knee surgery?? enough said? ------------- "the things you own will start to own you" |
Posted By: GottaSki
Date Posted: April-21-2010 at 12:05am
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Suggesting lapping the prop to the shaft, and mark the shaft with a sharpie marker. Then add the keyway, if the prop doesn't seat where it was, the keyway is binding up. ------------- "There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing." River Rat to Mole |
Posted By: 79nautique
Date Posted: April-21-2010 at 1:47pm
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Ok you installed a new prop shaft, did you re-use the old coupling or get a new one? if you used the old one did you have the face trued to the new shaft? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: jblmark
Date Posted: April-21-2010 at 1:52pm
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Thanks,
I'll give it a whirl ------------- JBLMArk76 |
Posted By: jblmark
Date Posted: April-21-2010 at 1:53pm
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Yes,
Thanks ------------- JBLMArk76 |
Posted By: 79nautique
Date Posted: April-21-2010 at 2:07pm
? yes to what? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
jblmark wrote:Posted By: JBLMark76
Date Posted: April-26-2010 at 6:54pm
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Sorry for the miss-posting.
The transmission is bad. Any suggestions regarding rebuilding or replacing. Are they hard to get rebuilt? expensive? Are replacements hard to find? Thanks, |
Posted By: C-Bass
Date Posted: April-26-2010 at 7:16pm
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Why the new screen name???
Anyway, where are you located, what type of engine, type of transmission? I'm sure Eric will chime in...he's the resident transmission guy. Chances are, whatever is wrong with it, it's repairable. ------------- Craig 67 SN 73 SN http://www.correctcraftfan.com/diaries/details.asp?ID=6103" rel="nofollow - 99 Sport 85SN |
Posted By: JBLMark76
Date Posted: April-26-2010 at 7:19pm
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For some reason my profile was not recognized any more. I had to re-up. I'm in Tennessee.
Thanks, |
Posted By: eric lavine
Date Posted: April-27-2010 at 10:22am
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877-369-6693 or my cell 330-322-8817, eric, im in ohio ------------- "the things you own will start to own you" |