cold starting woes - Page 2 - SailNet Community
 4Likes
Reply
 
LinkBack Thread Tools
post #11 of 24 Old 04-19-2016
Member
 
Join Date: Feb 2011
Posts: 64
Thanks: 0
Thanked 7 Times in 6 Posts
Rep Power: 10
 
Re: cold starting woes

Have you replaced ALL the fuel filters?
adki110 is offline  
Sponsored Links
Advertisement
 
post #12 of 24 Old 04-19-2016
Senior Member
 
Join Date: Dec 2012
Posts: 350
Thanks: 24
Thanked 18 Times in 18 Posts
Rep Power: 8
 
Re: cold starting woes

When I start my yanmar cold, I open the throttle wide open until it fires, then bring it down to idle for a minute or two. Works every time.
CLOSECALL is online now  
post #13 of 24 Old 04-19-2016
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 3,183
Thanks: 9
Thanked 92 Times in 91 Posts
Rep Power: 10
 
Re: cold starting woes

Quote:
Originally Posted by Faster View Post
Trying to fire without glow plugs wouldn't be 'fixed' by bleeding the injector, and would produce quite a bit of smoke.
I agree, however, experience in customer support has taught me to approach "I do this and then this happens" with a degree of scepticism, and to start by checking the basics.

For example, what would have happened if instead of bleeding the injectors, he had simply waited for an hour? We don't know. Coincidence does not equal cause and effect.

Bristol 31.1, San Francisco Bay
MarkSF is offline  
 
post #14 of 24 Old 04-19-2016
Senior Member
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 19,488
Thanks: 160
Thanked 587 Times in 558 Posts
Rep Power: 17
     
Re: cold starting woes

Quote:
Originally Posted by MarkSF View Post
I agree, however, experience in customer support has taught me to approach "I do this and then this happens" with a degree of scepticism, and to start by checking the basics.

For example, what would have happened if instead of bleeding the injectors, he had simply waited for an hour? We don't know. Coincidence does not equal cause and effect.
True.....

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
post #15 of 24 Old 04-20-2016
Senior Member
 
Join Date: Oct 2011
Location: Nanaimo B.C.
Posts: 4,558
Thanks: 5
Thanked 140 Times in 139 Posts
Rep Power: 9
 
Re: cold starting woes

Injectors have an outlet for excess fuel (and air )to return to tank They are usually ganged in series and routed right back into fuel source somewhere (simple but dumb) so the bit of air accumulates and just goes round and round until it's a problem. I use my return to fill a day tank for the stove and overflows from there back to tank of choice.by separate line.If you can tap into vent at the tank top.?? Fuel transfer (pulse pump type) are set to a pressure by a solenoid powered diaphragm against a spring. When flow happens,pressure drops and the solenoid clicks again to reload. I advocate it low down first off the tank so that rest of system is pressured This makes filter change ,bleeding and leak detection so easy They act as check valve but still need petcocks on tank.Sometimes the existing lift pump stays so it can be used in case of electric failure.Put plugs over the in and out lines to keep clean while it waits.
Capt Len is online now  
post #16 of 24 Old 04-20-2016 Thread Starter
Junior Member
 
Join Date: Apr 2016
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: cold starting woes

The injector return line goes back into the dirty side of the secondary fuel filter. It's all rigid steel lines so changing this could be challenging as, like you guessed, they're all ganged together before routing back to the filter. I recall reading something about some sort of device attached to the secondary filter housing that was there to remove air but, uh, it's vague at this point.

And yes, I replaced both the primary and secondary filters and all soft low pressure fuel lines EXCEPT as noted the line from the tank to the Racor.
David Spear is offline  
post #17 of 24 Old 04-20-2016
Senior Member
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 19,488
Thanks: 160
Thanked 587 Times in 558 Posts
Rep Power: 17
     
Re: cold starting woes

My money is still on a suction side air leak. I had the same persistent problem for a while, at the time I had a priming bulb in the line to help fill the filter. Eventually came to the conclusion that the fittings on that bulb were the culprit, removed it and installed a Racor with a built-in priming pump. No issues since.

Worthwhile changing out the fuel line from tank and checking/redoing all the connections.

btw Where are you moored??

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
post #18 of 24 Old 04-20-2016 Thread Starter
Junior Member
 
Join Date: Apr 2016
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: cold starting woes

RVYC. Just moved from Jericho to Coal Harbour this weekend.
David Spear is offline  
post #19 of 24 Old 04-20-2016
Senior Member
 
JimsCAL's Avatar
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 4,557
Thanks: 5
Thanked 205 Times in 197 Posts
Rep Power: 13
 
Re: cold starting woes

Definitely sounds like you are getting a bit of air into the fuel system. You will just have to go through the system step by step to locate it.
JimsCAL is online now  
post #20 of 24 Old 04-20-2016
Senior Member
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 19,488
Thanks: 160
Thanked 587 Times in 558 Posts
Rep Power: 17
     
Re: cold starting woes

Quote:
Originally Posted by David Spear View Post
RVYC. Just moved from Jericho to Coal Harbour this weekend.
Your choice?? Most prefer Jericho. We're in False Creek, but our son is at Jericho (he joined as a youngster)

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
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











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
Starting a Diesel in cold weather okawbow Diesel 12 02-26-2011 05:50 PM
Reverse Woes GaiaOrion General Discussion (sailing related) 9 08-08-2010 11:22 AM
Anchor woes bobdamiano Gear & Maintenance 13 06-07-2010 02:57 PM
Universal M3-20 Cold Starting perlasowner Diesel 7 01-08-2010 08:12 PM
Tacking Woes Dan Dickison Cruising Articles 0 05-19-2002 08:00 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