Last year I had a new Yanmar and prop installed on my CD33. At 4 knots and above while under engine power there is a significant vibration I believe may be caused by an improperly sized prop which is causing this vibration or cavitation. Is there a correct prop size for the 33? Has anyone experienced this type of noise or vibration?
Your input is appreciated.
civiello@idcomm.com
Correct Prop size for CD33
Moderator: Jim Walsh
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sam
Re: Correct Prop size for CD33
Last year i replaced my prop shaft. In the process I did a lot of web surfing and found several prop shaft locations. At least 2 had forms to fill out about your boat so that you could select the right size and pitch prop. I don't have the URLs any more but I found them on Yahoo or one of those search engines.
Vibration can also occur if the engine was not aligned correctly. I know of more than one case where the mechanic forgot to tighten the engine mount nuts and the engine worked a little out of position and started to vibrate. Alignment is usually to several thousands of an inch so it doesn't take much.
Vibration can also occur if the engine was not aligned correctly. I know of more than one case where the mechanic forgot to tighten the engine mount nuts and the engine worked a little out of position and started to vibrate. Alignment is usually to several thousands of an inch so it doesn't take much.