20 degree engine start - SailNet Community
 
LinkBack Thread Tools
post #1 of 7 Old 01-16-2009 Thread Starter
Senior Member
 
Join Date: Sep 2007
Posts: 171
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
20 degree engine start

Just thought I'd share this for the folks who will appreciate it.

20F is really cold for the locals here in NC.

I went to check on her at 0530 on the way to work. THe batteries are not as good as they could be but by disconnecting the compression on one cylinder and advancing the throttle a lot I was able to start the 30 year old Yanmar 2QM20 without glow plugs.

I figure that's the bottom end of what I will ever ask this engine to do.

In over my head?
First Boat, a well-equipped 1977 Camper Nicholson 31
What is all this stuff and how does it work?
hertfordnc is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 7 Old 01-16-2009
the pointy end is the bow
 
erps's Avatar
 
Join Date: Aug 2006
Location: La Conner, Washington
Posts: 6,264
Thanks: 2
Thanked 27 Times in 26 Posts
Rep Power: 11
   
How did you deactivate one cylinder?

Ray
S.V. Nikko
1983 Fraser 41
La Conner, WA


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


Boating for over 25 years, some of them successfully.
erps is offline  
Quote Quick Reply Share with Facebook
post #3 of 7 Old 01-16-2009
Senior Member
 
Boasun's Avatar
 
Join Date: Feb 2007
Location: New Orleans, LA
Posts: 3,070
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 11
   
A touch of ether helps diesels start also... But be careful in the usage of ether, because your engine will develop an ether starting habit if you use it all the time.

1600 Ton Master, 2nd Mate Unlimited Tonnage

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

S/V Rapture
Boasun is offline  
Quote Quick Reply Share with Facebook
post #4 of 7 Old 01-16-2009
Senior Member
 
Join Date: Nov 2002
Location: New York
Posts: 5,856
Thanks: 0
Thanked 18 Times in 17 Posts
Rep Power: 16
     
Quote:
Originally Posted by erps View Post
How did you deactivate one cylinder?
Each cylinder on a Yanmar has it's own decompression lever.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Never Forgotten

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
bubb2 is offline  
Quote Quick Reply Share with Facebook
post #5 of 7 Old 01-16-2009
Senior Member
 
Join Date: Feb 2007
Location: michigan
Posts: 296
Thanks: 3
Thanked 2 Times in 2 Posts
Rep Power: 10
 
ether causes pre compression ingnition burning holes in pistons
never use ether
is you need a supplement use wd40
cruisingdream is offline  
Quote Quick Reply Share with Facebook
post #6 of 7 Old 01-16-2009
Senior Member
 
denby's Avatar
 
Join Date: Feb 2007
Location: Dead Sea, some times called Long Island Sound
Posts: 2,527
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
       
Quote:
Originally Posted by hertfordnc View Post
Just thought I'd share this for the folks who will appreciate it.

20F is really cold for the locals here in NC.

I went to check on her at 0530 on the way to work. THe batteries are not as good as they could be but by disconnecting the compression on one cylinder and advancing the throttle a lot I was able to start the 30 year old Yanmar 2QM20 without glow plugs.

I figure that's the bottom end of what I will ever ask this engine to do.
I have the 2QM20F and I'm always amazed how easy it starts.

Dennis
O'Day 302

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

Be careful or i will do what the voices tell me to do
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To get the most from Sailnet, follow the link in
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
's signature.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Hey stuffit "Get a life"
denby is offline  
Quote Quick Reply Share with Facebook
post #7 of 7 Old 01-17-2009
Senior Member
 
Join Date: Sep 2006
Location: Scotland
Posts: 2,364
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 10
 
If your compression is good, and your oil has not thickened to treacle and emasculated your starter motor, the diesel really should start even when that cold. If compression is good, the temperatures at the top of the compression stroke are fierce, and the ambient temperature does not matter much.

Pls don't use narcotics to start the motor. It gets addicted to them very readily, then it's a diesel junkie.
.
Rockter 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
Cruising without an Engine Mark Matthews Seamanship Articles 0 06-07-2004 08:00 PM
Surveying a Diesel Engine Tom Wood Buying a Boat Articles 0 01-26-2003 07:00 PM
Safety Check Mark Matthews Gear and Maintenance Articles 0 01-25-2000 07:00 PM
Engine Checkup Tom Wood Buying a Boat Articles 0 03-26-1999 07:00 PM
Engine Checkup Tom Wood Gear and Maintenance Articles 0 03-26-1999 07:00 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