1gm10 alarm - SailNet Community
 2Likes
  • 2 Post By aa3jy
 
LinkBack Thread Tools
post #1 of 8 Old 08-02-2014 Thread Starter
Junior Member
 
Join Date: Jun 2013
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
1gm10 alarm

Hi All,
When I turn on the battery the alarm sounds.
Start the engine... alarm stops, as it should.
Stop the engine ... alarm sounds and stays sounding.

This one is new to me, all was well until I changed the battery.
Also, the engine is showing a new tendency to stall when idling, when cold, and is slower to start, needing some throttle to get going.

Where should I start looking?
Captain Aubrey is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 8 Old 08-02-2014
Senior Member
 
dabnis's Avatar
 
Join Date: Jul 2007
Location: Truckee, CA
Posts: 8,641
Thanks: 2
Thanked 116 Times in 114 Posts
Rep Power: 9
 
Re: 1gm10 alarm

Quote:
Originally Posted by Captain Aubrey View Post
Hi All,
When I turn on the battery the alarm sounds.
Start the engine... alarm stops, as it should.
Stop the engine ... alarm sounds and stays sounding.

This one is new to me, all was well until I changed the battery.
Also, the engine is showing a new tendency to stall when idling, when cold, and is slower to start, needing some throttle to get going.

Where should I start looking?
My, that is a puzzle. The VW diesels I had had a battery powered solenoid that acted as a fuel on/off valve, no hands on experience with Yanmars.

I can't think of why a new battery would effect fuel delivery unless you have an electric fuel lift pump? Perhaps you hit or dislodged a fuel line connection when installing the battery, allowing a minor air leak?

"Slower to start"? If your engine has glow plugs, maybe they are not getting enough current, maybe go over all electric connections to make sure they are clean & tight.

Once it is warm does it run properly? If so, it may be back to the glow plugs.

Interesting, let us know what you find.

Paul T
dabnis is offline  
Quote Quick Reply Share with Facebook
post #3 of 8 Old 08-03-2014
Remember you're a womble
 
PaulinVictoria's Avatar
 
Join Date: Aug 2009
Location: Sidney, BC
Posts: 2,114
Thanks: 10
Thanked 54 Times in 52 Posts
Rep Power: 6
 
Re: 1gm10 alarm

The alarm is oil pressure, should sound when you have power without the engine running although it may take a few seconds to sound after stopping. Maybe the new battery finally has enough juice to sound the buzzer?
As to the problem starting etc, sounds like the timing is off. Mine used to take several seconds, needed throttle on/off and so on, generally a bit of a pain to start. Adjusted the timing and it now starts in a second or two with no throttle at all.

Orange Crush
1974 C&C27 MkII

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PaulinVictoria is offline  
Quote Quick Reply Share with Facebook
post #4 of 8 Old 08-03-2014
Senior Member
 
dabnis's Avatar
 
Join Date: Jul 2007
Location: Truckee, CA
Posts: 8,641
Thanks: 2
Thanked 116 Times in 114 Posts
Rep Power: 9
 
Re: 1gm10 alarm

Quote:
Originally Posted by PaulinVictoria View Post
The alarm is oil pressure, should sound when you have power without the engine running although it may take a few seconds to sound after stopping. Maybe the new battery finally has enough juice to sound the buzzer?
As to the problem starting etc, sounds like the timing is off. Mine used to take several seconds, needed throttle on/off and so on, generally a bit of a pain to start. Adjusted the timing and it now starts in a second or two with no throttle at all.
It kind of sounds like the starting, rough when cold problem, started when he changed the battery? I am wondering if any other work was done at or near the time the problem started. I am assuming it started & ran OK before hand?

Paul T
dabnis is offline  
Quote Quick Reply Share with Facebook
post #5 of 8 Old 08-14-2014
Over Hill Sailing Club
 
smurphny's Avatar
 
Join Date: Feb 2009
Location: Adirondacks NY
Posts: 3,447
Thanks: 86
Thanked 99 Times in 96 Posts
Rep Power: 7
 
Re: 1gm10 alarm

If you reversed polarity when installing the new battery, even momentarily, it may have fried the diodes in your alternator. I had this happen. The symptoms sound similar. Somehow after the alternator is shorted, a backfeed develops into the alarm circuit.

Alberg 35: With a philosophical flourish Cato throws himself upon his sword; I quietly take to the ship.
smurphny is offline  
Quote Quick Reply Share with Facebook
post #6 of 8 Old 08-14-2014
Senior Member
 
Join Date: Jul 2006
Posts: 1,258
Thanks: 1
Thanked 40 Times in 39 Posts
Rep Power: 10
 
Re: 1gm10 alarm

Quote:
Originally Posted by Captain Aubrey View Post
Hi All,
When I turn on the battery the alarm sounds.
Start the engine... alarm stops, as it should.
Stop the engine ... alarm sounds and stays sounding.

Where should I start looking?
Normal...look in you Yanmar shop manual,if you have one, explains the alarms
RichH and asdf38 like this.
aa3jy is offline  
Quote Quick Reply Share with Facebook
post #7 of 8 Old 08-15-2014
Over Hill Sailing Club
 
smurphny's Avatar
 
Join Date: Feb 2009
Location: Adirondacks NY
Posts: 3,447
Thanks: 86
Thanked 99 Times in 96 Posts
Rep Power: 7
 
Re: 1gm10 alarm

Just turning on the battery should not activate the alarm circuit. I think that's the key piece of evidence. If the alarm is sounding before the key is turned to the ON position, there may well be feedback through the alternator to the neutral into the alarm buzzer. The problem is not at the sending unit.

Alberg 35: With a philosophical flourish Cato throws himself upon his sword; I quietly take to the ship.

Last edited by smurphny; 08-15-2014 at 03:19 PM.
smurphny is offline  
Quote Quick Reply Share with Facebook
post #8 of 8 Old 08-15-2014
Senior Member
 
Join Date: Jul 2006
Posts: 1,258
Thanks: 1
Thanked 40 Times in 39 Posts
Rep Power: 10
 
Re: 1gm10 alarm

I suspect your key switch is shorted if the key is in the off position and alarm sounds.Test switch for continuity.

Last edited by aa3jy; 08-15-2014 at 03:49 PM.
aa3jy 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
Use of 1gm10 through the winter Zuma Diesel 5 11-20-2013 02:16 AM
Low rpm 1gm10 akbucki Diesel 20 08-09-2012 11:42 PM
Overheating Issues (1GM10) asdf38 Diesel 26 07-25-2011 03:16 PM
1GM10 Oil Alarm Issue asdf38 Diesel 3 12-27-2010 10:04 PM
1GM10 questions rperret Gear & Maintenance 7 06-17-2007 07:51 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