Thread Tools Search this Thread
Old 22 May 2011, 17:41   #1
Country: UK - England
Town: gravesend
Boat name: curach/Earl
Make: seago/Lifeguard 4M
Length: under 3m
Engine: 3.3 marinar/10 hp
Join Date: Jul 2008
Posts: 802
Prop or more serious?


Took the Earl out sat ,with yet another second hand outboard ,prop right jaggered up,so going at 6 odd knotts opened her up ,get acceleration,start to pick up, then horrid vibration,i throttled down,me thinks not just the prop,more like gears,oh dear what have i brought now?would the prop be the reason for this?can t believe its just a roughed up prop?no expert mind, just something not right?

thornbackflound is offline   Reply With Quote
Old 23 May 2011, 02:19   #2
Peter_C's Avatar
Country: USA
Boat name: Uh...a kayak?
Length: 4m +
Join Date: Dec 2009
Posts: 1,483
If the prop is damaged, it could easily cause a nasty vibration. I have seen an inboard with a slightly bent 3 blade cause the boat to shake badly at anything over 2,000 rpm. Get a good prop and test it again.

Peter_C is offline   Reply With Quote
Old 23 May 2011, 02:20   #3
RIBnet admin team
Poly's Avatar
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 9,416
post pictures of the prop - people might be able to guess then. However if the prop is bad enough this will cause the symptoms you described. If it is run like that for long the vibration will then start damaging stuff!
Poly is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 01:24.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.