Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 23-02-2012, 15:09   #16
Registered User

Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 7,932
Re: Losing Prop on Volvo Penta MD2030 Saildrive

Quote:
Originally Posted by Pieter View Post
Hi BelizeSailor,

Thanks again for yr comments and the link (solution) you mentioned. I will look into that...
Best rgds
Pieter Kommerij
SV Onda Boa
You're welcome. Hope it helps. The solution on the link looks like a very clean solution. I have a friend who is a Moorings base manager and will ask him if he has implemented it.

If you use it please post how it works out for you.

Fair Winds! (important with no prop! )
__________________

__________________
belizesailor is offline   Reply With Quote
Old 23-02-2012, 15:52   #17
Marine Service Provider
 
Pieter's Avatar

Join Date: Mar 2010
Location: Angra dos Reis, Brazil
Boat: Catamaran, FP 40 ft
Posts: 173
Re: Losing Prop on Volvo Penta MD2030 Saildrive

Thanks Cotemar, As it happens i use a two blade fixed prop and not folding props.
As mentioned above: i will get with the Volvo guys and see what they have to say... Any news, i will surely post here..

Best rgds
Pieter Kommerij
SV Onda Boa
__________________

__________________
Pieter is offline   Reply With Quote
Old 24-02-2012, 16:29   #18
Registered User

Join Date: Jun 2007
Location: SW Florida
Boat: FP Belize, 43' - Dot Dun
Posts: 3,425
Re: Losing Prop on Volvo Penta MD2030 Saildrive

I lost a few props on my Yanmar SD20 sail drives. The solution was a castle nut and cotter pin (or safety wire) from Seahawk Props.
__________________
DotDun is offline   Reply With Quote
Old 05-03-2012, 08:03   #19
Registered User

Join Date: Jan 2010
Location: Gloucester, MA
Boat: CS 36t
Posts: 387
Re: Losing Prop on Volvo Penta MD2030 Saildrive

Since I didn't see it already asked, were you applying the correct tightening torque? Bolts that are undertorqued are much more likely to back off. The best way to do this is with a torque wrench. A properly torque bolt clamping a hard material (unfortunately bronze isn't as hard as would be good) will almost never back off. The other way for the bolt to back off is if the prop wasn't fully seated initially and it moves a bit, the preload on it will go down similar to if it is not properly torqued. Also, a bolt that is loose will be subject to fatigue.
__________________
klem is offline   Reply With Quote
Old 05-03-2012, 08:20   #20
Registered User

Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 7,932
Re: Losing Prop on Volvo Penta MD2030 Saildrive

Quote:
Originally Posted by klem View Post
Since I didn't see it already asked, were you applying the correct tightening torque? Bolts that are undertorqued are much more likely to back off. The best way to do this is with a torque wrench. A properly torque bolt clamping a hard material (unfortunately bronze isn't as hard as would be good) will almost never back off. The other way for the bolt to back off is if the prop wasn't fully seated initially and it moves a bit, the preload on it will go down similar to if it is not properly torqued. Also, a bolt that is loose will be subject to fatigue.
Yes, this could certainly lead to fittings loosening up, but don't over tighten of course. The procedure I follow:

1. Coat prop shaft and inside of prop hub and cone with appropriate marine grease.
2. Firmly seat the prop.
3. Put cone in place and tighten. There is a hole bored horizontally through the hub which you can insert a small bar to tension properly -- I use a large phillips head screw driver.
4. Lube the hub bolt and tighten. I don't usually use a torque wrench but certainly a good idea.

I've removed the props on my boat several times over 10 years to service the shaft seals. To date, I have never lost a prop or found one to be loose (I usually give them a quick check a few times a season), but now you guys have me a little paranoid !
__________________

__________________
belizesailor is offline   Reply With Quote
Reply

Tags
md2030, penta, saildrive, volvo

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale: Volvo Penta 2003 Engine Parts Doug Brown Classifieds Archive 11 10-07-2012 12:10
Losing Prop on Volvo Penta MD2030 Saildrive Pieter Propellers & Drive Systems 19 05-03-2012 08:20
So, you catch a mouse on a sticky tray - then what ? ty.gregory Off Topic Forum 96 23-02-2012 09:07
Extra Drive Belt on a Yanmar 3 GM Tomahawk Plumbing Systems and Fixtures 5 22-02-2012 04:55
Extra. Elt on a Yanmar 3 GM Tomahawk Engines and Propulsion Systems 2 19-02-2012 08:57



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 23:41.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.