Yanmar not starting - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 10-06-2012
Member
 
Join Date: Dec 2011
Location: Maine
Posts: 43
Thanks: 1
Thanked 2 Times in 2 Posts
Rep Power: 0
doug1957 is on a distinguished road
Yanmar not starting

Hi all. Just want check my assumptions. The engine (2YM15) initially started, and I didn't hear the cheerful gurgle from the stern and a quick check confirmed there was no water coming out. Turned the engine off immediately, and no alarms sounded. Strainer was fine, impeller checked out, so it's not that. In the engine compartment, dirty water (black) had sprayed around - not oily to the touch. Also, on a second try the engine turned over, but would not start. Also, diesel(?) vapor appeared to be coming out of the air filter.

What I think happened is the mixing elbow clogged completely and probably blew out. There is still sufficient back pressure to keep the engine from starting. I'll be checking on this tomorrow but is this a reasonable hypothesis, and most importantly, is there any possible major damage to look for? Thanks.
Reply With Quote Share with Facebook
  #2  
Old 10-06-2012
Gene T's Avatar
Senior Member
 
Join Date: May 2006
Location: Left Coast USA
Posts: 666
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
Gene T is on a distinguished road
Re: Yanmar not starting

Well, sprayed blackish water = blown exhaust hose due to blockage or hole after the riser. Blockage could be in anti-siphon riser. That doesn't explain why it won't start now however. Find the leak and it will probably lead you to the problem.

Gene
__________________

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

Currently in Long Beach, CA
Reply With Quote Share with Facebook
  #3  
Old 10-07-2012
Lost at Si!
 
Join Date: Jan 2010
Location: Travel 365
Posts: 40
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
lostatsi is on a distinguished road
Re: Yanmar not starting

There is no harm in shutting off the salt water (cooling supply) sea **** and working strictly on the starting issue first ( no need to run long once fixed). Very basic on a deisel, fuel at injector pump. Then address the (no gurgling) sea water issues. Bear in mind that an impeller can look fine and even appear to spin with pump cover off yet still not work when the pressure from the cover is applied or rpms increase. I have had hands on experience with the impeller hub spinning inside the rubber. If you feel you have water in the combustion chambers turn the motor over back-wards by hand a couple of revolutions to prevent hydraulic damage. Check for water in oil also.
Reply With Quote Share with Facebook
  #4  
Old 10-08-2012
Member
 
Join Date: Dec 2011
Location: Maine
Posts: 43
Thanks: 1
Thanked 2 Times in 2 Posts
Rep Power: 0
doug1957 is on a distinguished road
Re: Yanmar not starting

Thanks all. The exhaust riser blew out before the mixing elbow, so that explains part of the problem. Should have made sure (asked) the PO if he cleaned the elbow regularly. Water in the combustion chambers has come to mind.
Reply With Quote Share with Facebook
  #5  
Old 10-08-2012
Senior Member
 
Join Date: Jul 2006
Posts: 836
Thanks: 1
Thanked 17 Times in 17 Posts
Rep Power: 9
aa3jy is on a distinguished road
Re: Yanmar not starting

One thing I've noticed over the years in colder climates and passing cold fronts..diesel fuel thickens or condensation builds with drop in temps..try changing your filters more often and change to a slightly larger micron size and bleed your fuel system..
Reply With Quote Share with Facebook
  #6  
Old 10-08-2012
First String
 
Join Date: Jan 2009
Location: South carolina
Posts: 788
Thanks: 39
Thanked 6 Times in 6 Posts
Rep Power: 6
ltgoshen is on a distinguished road
Re: Yanmar not starting

Quote:
Originally Posted by doug1957 View Post
Thanks all. The exhaust riser blew out before the mixing elbow, so that explains part of the problem. Should have made sure (asked) the PO if he cleaned the elbow regularly. Water in the combustion chambers has come to mind.
Yo Doug Vinigar twice a year thru the engine will help beat down the build up.
1)Start the engine,
2) Put a gal on Vinigar in somthing you can fit your suction hose into.
3) take your suction side hose off the water strainer and let it draw the vinigar thru your engine.
4) when all the vinigar has been pulled thru the engine, hook your hose back to the raw-water strainer.
It should help some. You will still need to do a good exhaust riser cleaning once a year. Good luck. I have a 2GM 13 yanmar and Its a great little engine. A little maintenance and they will last a lifetime.
Reply With Quote Share with Facebook
  #7  
Old 10-08-2012
DrB DrB is offline
Senior Member
 
Join Date: Mar 2007
Location: New England
Posts: 966
Thanks: 0
Thanked 6 Times in 6 Posts
Rep Power: 8
DrB will become famous soon enough
Re: Yanmar not starting

Quote:
ltgoshen
Re: Yanmar not starting
Quote:
Originally Posted by doug1957 View Post
Thanks all. The exhaust riser blew out before the mixing elbow, so that explains part of the problem. Should have made sure (asked) the PO if he cleaned the elbow regularly. Water in the combustion chambers has come to mind.
Yo Doug Vinigar twice a year thru the engine will help beat down the build up.
1)Start the engine,
2) Put a gal on Vinigar in somthing you can fit your suction hose into.
3) take your suction side hose off the water strainer and let it draw the vinigar thru your engine.
4) when all the vinigar has been pulled thru the engine, hook your hose back to the raw-water strainer.
It should help some. You will still need to do a good exhaust riser cleaning once a year. Good luck. I have a 2GM 13 yanmar and Its a great little engine. A little maintenance and they will last a lifetime.
Are you saying that sucking the vinegar through the engine in a single pass is enough residence time to clean the exhaust riser or do you need to start the motor, suck the vinegar in, shut the motor down, wait 10 minutes or so for the vinegar to break up the scale, and then blow the vinegar out on the restart? I have also heard that you can use oxalic acid diluted about 1:1.

DrB
__________________
If you liked my advice/response, give me some rep points. If you didn't......well what do you expect, it was free.
Reply With Quote Share with Facebook
  #8  
Old 10-09-2012
trantor12020's Avatar
Senior Member
 
Join Date: Mar 2006
Location: Singapore
Posts: 672
Thanks: 1
Thanked 10 Times in 10 Posts
Rep Power: 9
trantor12020 is on a distinguished road
Re: Yanmar not starting

Might be easier to remove riser and mixing elbow for thorough cleaning. I'm sure your mixing elbow has foulup some.
__________________
Ken
2002 Hunter 326, SV Millennium 2
1999 Macgregor 26X, SV Millennium
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yanmar YSE12 Not Starting eightpoint3 Diesel 9 09-27-2010 05:29 PM
unusual starting Yanmar gevanoff Gear & Maintenance 7 05-14-2009 02:53 PM
Yanmar starting question nk235 Gear & Maintenance 29 04-19-2009 06:35 PM
Starting Battery - Yanmar 3GM JohnRPollard Gear & Maintenance 14 03-11-2008 12:31 PM
Yanmar starting problems... marinesniper Gear & Maintenance 2 12-19-2006 11:45 PM


All times are GMT -4. The time now is 06:36 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.