Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 25-10-2008, 05:14   #1
Registered User

Join Date: Oct 2008
Posts: 5
Northern Lights exhaust failure

I have a 9kw NL which has 3500 flawless hours on it. Until now. The casting in the exhaust circuit cracked and flooded the generator. I am now in the process of shipping a new one down to Curacao. NL is denying any problems with the casting. Has anyone had any experience with this and is there an aftermarket solution for the replacement part that might not fall apart?

north stand is offline   Reply With Quote
Old 25-10-2008, 05:29   #2
Moderator Emeritus
GordMay's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 29,381
Images: 240
What is your NL Model Number?

Northern Lights Starting Instructions caution:

“... Excessive cranking of the starter on sets equipped with a water lift muffler can cause engine damage.
If the engine does not start after three 20- second cranks, remove the impeller from the water pump">raw water pump. This will prevent the muffler from filling with water and backfilling the exhaust line and engine. Once the engine starts, shut it off immediately and re-install the impeller.
Re-start the engine and check the exhaust overboard outlet for gushes of water...”

Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"

GordMay is offline   Reply With Quote
Old 25-10-2008, 12:56   #3
Registered User

Join Date: Jun 2005
Posts: 1,901
If you can send or post pictures of the failure I can render an opinion.
never monday is offline   Reply With Quote
Old 27-10-2008, 19:34   #4
Eternal Member
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
I replaced one about a month ago....It had a crack running the length of it.....
It had been "going bad for a while as there was extensive rust buildup on the inside.

On thought that I had was mabe the water injection nipple was put in too tight and with teflon tape (it showed). Osco, for example says NOT to use Teflon on that fitting.
Chief Engineer is offline   Reply With Quote
Old 29-10-2008, 04:04   #5
Registered User

Join Date: Oct 2008
Posts: 5
Thanks all. The model is an M773LK 9KW genset. The part is a cast iron elbow (part# 27-32003) above the back end. And yes, it had been "going bad" for a while. It was cracked it's entire length. Unfortunately, that side of the genset is right up against the hull starboard side and I never saw any leakage or rust build up during routine maintenance. It sounds like there might be an aftermarket stainless part available. Any help in locating one would be appreciated. This has been a shockingly (so to speak) expensive design/manufacturing flaw and failure. Evidently it's not unknown to happen and I wish NL had posted or sent warnings out.
north stand is offline   Reply With Quote

exhaust, Northern Lights

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Northern lights Gen S/V Antares Electrical: Batteries, Generators & Solar 3 01-09-2008 20:57
rig failure? irwinsailor Dollars & Cents 3 18-02-2008 07:26
Northern Lights genset problem Terry B Engines and Propulsion Systems 7 18-02-2008 03:29
No Voltage from 6KW Northern Lights Generator Dreaming Yachtsman Electrical: Batteries, Generators & Solar 12 20-12-2007 17:04
Northern lights BC Mike Polar Regions 10 25-01-2006 13:01

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:02.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.