Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 08-01-2012, 11:41   #16
Senior Cruiser
 
atoll's Avatar

Cruisers Forum Supporter

Join Date: Mar 2010
Location: gettin naughty on the beach in cornwall
Boat: 63 custom alloy sloop,macwester26,prout snowgoose 37 elite catamaran!
Posts: 9,310
Images: 75
Re: replacing the engine and need prop hints

Quote:
Originally Posted by w1651 View Post
I tried that but the bolts are to rusty and stripped the heads. I did take the heads off the engine and removed the extra weight earlier.
I saw a MD3 engine for sale and wondered if that would fit in the space for the MD2B instead. About ten horses more and that would really push her along.
md 3b may be the way to go,as a lot of the parts off the md2 are the same,would reccomend a new shaft if corroded anyway,plus may want to change pitch on the prop for the bigger engine.

though becareful about exchanging one engine for another non runner!
__________________

__________________
my catamaran building project updates http://www.cruisersforum.com/forums/...36#post2502136
atoll is offline   Reply With Quote
Old 08-01-2012, 14:38   #17
Registered User

Join Date: May 2010
Location: St Pete FL
Boat: 1972 Contest 33
Posts: 783
Re: replacing the engine and need prop hints

Quote:
Originally Posted by Celestialsailor View Post
Hard to tell from the picture but that shaft and stuffing box looks like it needs some attention or even replacing. You might have to bite the bullet and haul the boat replacing it all. If the shaft is badly corroded, you could haul, saw the shaft and yank the unit whole. I know...I know...I'm the bad guy!
No not a bad guy at all. I am looking to for a storage space for it now but money is tight these days. Still I wonder what the line at the top of the stuffing box is for if it is lubed from behind it.
__________________

__________________
Auto pilot is saying get up here and grab the tiller.
w1651 is offline   Reply With Quote
Old 08-01-2012, 18:21   #18
Registered User
 
Celestialsailor's Avatar

Join Date: Nov 2006
Location: In Mexico, working on the boat
Boat: Hallberg Rassy 35. and 14ft.Whitehall pulling skiff.
Posts: 8,013
Images: 5
Re: replacing the engine and need prop hints

Quote:
Originally Posted by w1651 View Post
No not a bad guy at all. I am looking to for a storage space for it now but money is tight these days. Still I wonder what the line at the top of the stuffing box is for if it is lubed from behind it.
I think the tube is to allow water pass into the stuffing box packing, so it stays cool. The tube you're talking about should terninate above the waterline. The other way that same process is done is to cut slots into the the side of prop tube area between the cutless and the stuffing box.
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming: Wow - what a ride!"

http://wwwjolielle.blogspot.com/
Celestialsailor is offline   Reply With Quote
Old 08-01-2012, 18:42   #19
Senior Cruiser
 
atoll's Avatar

Cruisers Forum Supporter

Join Date: Mar 2010
Location: gettin naughty on the beach in cornwall
Boat: 63 custom alloy sloop,macwester26,prout snowgoose 37 elite catamaran!
Posts: 9,310
Images: 75
Re: replacing the engine and need prop hints

Quote:
Originally Posted by w1651 View Post
No not a bad guy at all. I am looking to for a storage space for it now but money is tight these days. Still I wonder what the line at the top of the stuffing box is for if it is lubed from behind it.
the tube to the stuffing box is for water cooling/lubrication,normally tee'd
into the raw water just below the anti siphon so water is pumped through it
and the exhaust,and so as not to flood the engine once stopped.

some stuffing boxes have the same set up but with grease boxes,to force grease into the sterntube and bearings.
__________________
my catamaran building project updates http://www.cruisersforum.com/forums/...36#post2502136
atoll is offline   Reply With Quote
Old 28-02-2012, 08:22   #20
Registered User

Join Date: May 2010
Location: St Pete FL
Boat: 1972 Contest 33
Posts: 783
Re: replacing the engine and need prop hints

I am seriously looking at a electric motor set up for propulsion. I found a D/C motor not cheap but reasonable and a I can get a controller at a reasonable cost also. But I was wondering if I should change the polarity to change prop direction for reverse or should I add a trans on the back end of the motor? I have to do more research on that aspect of it. I think a trans on the D/C motor is the best way to go there.
__________________

__________________
Auto pilot is saying get up here and grab the tiller.
w1651 is offline   Reply With Quote
Reply

Tags
engine

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
Boat Insurance for the Caribbean wahoo40 Boat Ownership & Making a Living 6 04-03-2012 19:03
Restoring the LOST PERL Capt. Mike Liveaboard's Forum 5 29-02-2012 18:48
Crew Available: Free Help with Craft and Food allamericanboy Crew Archives 0 28-02-2012 13:42
For Sale: Achilles Inflatable and 5 hp Nissan lancelot9898 Classifieds Archive 1 28-02-2012 07:45
Pass the International Boat license in Australia to use it in Europe Le-Blond Rules of the Road, Regulations & Red Tape 15 27-02-2012 22:54



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 21:00.


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.