MD7a Hand Crank - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 15 Old 11-30-2012 Thread Starter
Islander Yacht Fan
 
ECS-IB30's Avatar
 
Join Date: Oct 2011
Location: Kent Island
Posts: 60
Thanks: 1
Thanked 3 Times in 3 Posts
Rep Power: 4
 
MD7a Hand Crank

I have a 1980s vintage Volvo MD7a in my Islander Bahama 30 - it has a gear box for a hand crank to start the engine without the use of a battery - has anyone out there seen one of these cranks handles or could provide a picture of what it looks like -

Thanks
Eric
ECS-IB30 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 15 Old 11-30-2012
Senior Member
 
chucklesR's Avatar
 
Join Date: Sep 2007
Location: Pasadena Md - Magothy side
Posts: 5,979
Thanks: 10
Thanked 31 Times in 31 Posts
Rep Power: 10
     
Re: MD7a Hand Crank

and a picture of the gorilla who cranks it

Lessons learned are opportunities earned.
chucklesR is offline  
Quote Quick Reply Share with Facebook
post #3 of 15 Old 11-30-2012
Senior Member
 
chef2sail's Avatar
 
Join Date: Nov 2007
Location: Maryland
Posts: 7,096
Thanks: 30
Thanked 58 Times in 54 Posts
Rep Power: 8
 
Send a message via AIM to chef2sail
Re: MD7a Hand Crank

I used to have a hand crank as an emergency star for my old Islander 28 with an atomic 4. I had to use it once because I had run down the small amount of batteries I had inadvertantly. When the ngine started the cranks lever almost broke my wrist and fingers, Be careful..

Dave


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
___________________________
S/V Haleakala (Hawaiian for" House of the Sun")
C&C 35 MKIII Hull # 76
Parkville, Maryland
(photos by Joe McCary)
Charter member of the Chesapeake Lion posse

Our blog-
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


“Sailing is just the bottom line, like adding up the score in bridge. My real interest is in the tremendous game of life.”- Dennis Conner
chef2sail is offline  
Quote Quick Reply Share with Facebook
post #4 of 15 Old 11-30-2012
Senior Smart Aleck
 
jameswilson29's Avatar
 
Join Date: Aug 2009
Location: Richmond, Virginia
Posts: 2,152
Thanks: 34
Thanked 70 Times in 65 Posts
Rep Power: 7
 
Re: MD7a Hand Crank

Marine supply stores sell several different sizes of standard/universal crank handles.
jameswilson29 is offline  
Quote Quick Reply Share with Facebook
post #5 of 15 Old 11-30-2012 Thread Starter
Islander Yacht Fan
 
ECS-IB30's Avatar
 
Join Date: Oct 2011
Location: Kent Island
Posts: 60
Thanks: 1
Thanked 3 Times in 3 Posts
Rep Power: 4
 
Re: MD7a Hand Crank

So far, I've looked at about every marine store online I could find - ebay, craigslist, etc - still nothing...was hoping someone had one or a picture so I could fabricate one.....

Thanks
Eric
ECS-IB30 is offline  
Quote Quick Reply Share with Facebook
post #6 of 15 Old 11-30-2012
Senior Smart Aleck
 
jameswilson29's Avatar
 
Join Date: Aug 2009
Location: Richmond, Virginia
Posts: 2,152
Thanks: 34
Thanked 70 Times in 65 Posts
Rep Power: 7
 
Re: MD7a Hand Crank

West Marine sells them - they are yellow, they hang them in the engine aisle.
jameswilson29 is offline  
Quote Quick Reply Share with Facebook
post #7 of 15 Old 11-30-2012
Moderator
 
Jeff_H's Avatar
 
Join Date: Feb 2000
Location: Annapolis, Md
Posts: 6,957
Thanks: 5
Thanked 163 Times in 133 Posts
Rep Power: 10
     
Re: MD7a Hand Crank

I have hand cranked a Volvo 2 cyl. before. It is surprisingly easy especially if you have two people (one top crank and the other to operate the compression release. Before cranking, you release the compression relief, the one person cranks the engine up to speed, then as that person backs out the handle, the other person flops down the compression release.

As to safety, before you crank check to make sure the handle backs out properly. The way these handles are designed, the handle engages by screwing in half a turn so that when the engine starts the handle disengages. This should work effortlessly. If there is any doubt that the handle is going on and off easily do not try to do this.

Also, if the engine is hard to start, after a try or two, you need to close the cooling water intake so you don't fill the cylinders with water while you are cranking. Then you need to open the intake quickly once the engine starts. Because the problem of filling the cylinders varies with the engine and installation, some people close the intake before any hand-crank attempt.

Jeff


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Curmudgeon at Large- and rhinestone in the rough, sailing my Farr 11.6 on the Chesapeake Bay
Jeff_H is offline  
Quote Quick Reply Share with Facebook
post #8 of 15 Old 11-30-2012
Senior Member
 
SchockT's Avatar
 
Join Date: May 2012
Location: North Vancouver, BC
Posts: 1,439
Thanks: 1
Thanked 27 Times in 25 Posts
Rep Power: 4
 
Re: MD7a Hand Crank

I have one on my boat. I can't say that I have ever tried to use it! I will try to get down to the boat this weekend and grab it and take some pics.

1979 Santana 30 Tall Rig
Hull#101
SchockT is offline  
Quote Quick Reply Share with Facebook
post #9 of 15 Old 11-30-2012
Member
 
Join Date: Feb 2011
Posts: 31
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 0
 
Re: MD7a Hand Crank

I had an MD7A on my 1979 S2 9.2C. Jeff H. accuratly described the use of the crank. On my boat the cranking shaft was about four feet long, the crank end had about a 14 inch lever with a handle. Think of a wind up sissors jack. And yes it does work. Practice at the dock first.
adki110 is offline  
Quote Quick Reply Share with Facebook
post #10 of 15 Old 11-30-2012
me at 67!
 
deniseO30's Avatar
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 6,969
Thanks: 55
Thanked 126 Times in 115 Posts
Rep Power: 10
   
Re: MD7a Hand Crank

get drunked up like these two LOL

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

My last project!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


My boat is sold!
deniseO30 is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Can you hand-crank a Yanmar 15 hp? micheck Diesel 12 09-27-2011 12:52 AM
Greasing Hand basin Manual hand pump Frozensurfer Gear & Maintenance 1 05-04-2010 12:53 PM
Westerbeke 27 doesn't crank brianontheroad Diesel 11 12-14-2009 10:48 AM
Diesel Hand Crank backcreeksailor Gear & Maintenance 8 04-01-2009 07:44 PM
where has the hand crank gone???? SimonV General Discussion (sailing related) 13 08-17-2006 11:44 PM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome