Probable Injection Pump failure YSE8 - 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 07-11-2006
gsheath's Avatar
Member
 
Join Date: Jun 2006
Location: Melbourne, Australia
Posts: 28
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
gsheath is on a distinguished road
Probable Injection Pump failure YSE8

My engine failed when I most needed it last Sunday, and courtesy of the Australian Volunteer Coastguard who towed me up the channel into the Marina, I got back to the Marina safely.

I've had no sign of any trouble in the 20 hours or so of operation in the last couple of months since purchasing the boat (Compass 28 yacht), but as I had no service history on the old YSE8, I wanted a major service to be completed on it by someone who knew more about marine diesels than I did. I had the marina mechanics (Yanmar dealership) complete a
service recently to be safe, which involved replacing oils, checking cooling system, replacing impeller, and replacing the automotive fuel filter the previous owner had installed (!), with a new marine fuel filter. I watched what they did and they gave me some tips on the things I can do myself.

Why did the engine fail? I suspected air got into the fuel system, but I'm not sure how. It has been suggested that the movement of the boat on the day may have caused the fuel header tank to inject air, but I habitually keep that tank topped up before each trip, and we wouldn't have used much fuel anyway. Apart from a brief start up after the service, my venture out yesterday was the first use of the engine since the service.

The engine just cut out after 50 mins or so after we negotiated the tricky channel from the Marina out into the Bay. The wind was gusting to 20-25 knots and the boat was lively in the 5ft plus chop. We had just finished turning upwind under power to hoist a well reefed main and No3 foresail when the engine just died. We expedited settling the boat down under sail, then tried to get the engine started. She just didn't want to go. After getting some great experience in how my boat handles in a decent wind, we tried the engine again. No go. I radioed the Coastguard and arranged for them to meet me at the entrance to the channel leading to the Marina. (No, it is NOT a channel worth considering sailing up!).

After spending a day trying to figure this all out, the mechanics have proved the fuel system to the injector pump, and they are saying that the pump is the problem. Insufficient fuel is coming out of the pump. Examination of the existing components show some wear in the elements. They suggest replacing the pump and the injector elements therein. They can't explain why this has suddenly become an issue; they say that typically there are preceding symptoms that would warn of impending failure. They have also noted that compression is about 10lb below spec, but say this is not of concern right now.

I was wondering if anyone could shed any light on this from their own experience?
__________________
Graham
Hakuna Matata
(No worries mate!)
Western Port Marina
Hastings, Vic, Australia
Reply With Quote Quick reply to this message 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:

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

 
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
2GM20F - Fresh Water Circulating pump Bill R Island Packet 5 09-17-2007 01:53 PM


All times are GMT -4. The time now is 10:55 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.