Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 14-05-2019, 07:36   #1
Registered User

Join Date: Jan 2015
Location: Hudson Valley, NY
Boat: Albin Vega 27
Posts: 32
Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Anyone had similar problem with a beta 14/bz482 engines? Or can give me some ideas how to troubleshoot a similar or the same problem in another diesel engine? It starts normal, idles normal for about 15 second and gradually revs up to 4k RPM and stays there. Pushing the cut off button on the panel doesn't do anything. I disconnect the wiring harness and still runs. Finally pulling the fuel line i am able to shut off the engine. Spoken to beta marine rep. and advised to check to see oif slider on the fuel injection pump is stuck. Removed the pump and everything looks normal, i can also see the governor spring inside the cavity that pump sits in so the governor spring is not missing as well. i put the pump back in and same thing repeats. Brought the pump home and planning on disassembly everything and put back together. Meanwhile i wonder if anyone else has suggestion. All cable controls removed so there is no interaction with them, it should just start and idle normally. Thanks.
Beta bz482 is a 2cyl diesel engine, My first diesel engine and it appears to be a simple set up.
__________________

littledevil is offline   Reply With Quote
Old 14-05-2019, 08:54   #2
Registered User
 
Opie91's Avatar

Join Date: Apr 2009
Location: CT
Boat: C&C 34
Posts: 877
Re: Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Quote:
Originally Posted by littledevil View Post
Anyone had similar problem with a beta 14/bz482 engines? Or can give me some ideas how to troubleshoot a similar or the same problem in another diesel engine? It starts normal, idles normal for about 15 second and gradually revs up to 4k RPM and stays there. Pushing the cut off button on the panel doesn't do anything. I disconnect the wiring harness and still runs. Finally pulling the fuel line i am able to shut off the engine. Spoken to beta marine rep. and advised to check to see oif slider on the fuel injection pump is stuck. Removed the pump and everything looks normal, i can also see the governor spring inside the cavity that pump sits in so the governor spring is not missing as well. i put the pump back in and same thing repeats. Brought the pump home and planning on disassembly everything and put back together. Meanwhile i wonder if anyone else has suggestion. All cable controls removed so there is no interaction with them, it should just start and idle normally. Thanks.
Beta bz482 is a 2cyl diesel engine, My first diesel engine and it appears to be a simple set up.

Call Stanley or Farron down at Beta Marine NC. They are extremely helpful.


You could post on the Beta Marine Forum also:


https://82353.activeboard.com/
__________________

Opie91 is offline   Reply With Quote
Old 14-05-2019, 11:48   #3
Registered User

Join Date: Jan 2015
Location: Hudson Valley, NY
Boat: Albin Vega 27
Posts: 32
Re: Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Quote:
Originally Posted by Opie91 View Post
Call Stanley or Farron down at Beta Marine NC. They are extremely helpful.


You could post on the Beta Marine Forum also:


https://82353.activeboard.com/
Hi. I have spoken to Farron yesterday, as you said they have been very halpfull in the past and also today. Removed the pump with Farrons advise. I updated him with the no change result. At this point i would call him after the pump disassmbley if nothing changes. I have been reading online and started to be inclined towards the idea that internals of the pump has something to do. I need to get into that thing and hopefully out. Did it once before, drowing pictures along the way what goes where. Lots of small pieces.
littledevil is offline   Reply With Quote
Old 15-05-2019, 07:24   #4
Marine Service Provider

Join Date: Aug 2008
Location: North Carolina
Posts: 274
Re: Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Hi. I have spoken to Farron yesterday, as you said they have been very halpfull in the past and also today. Removed the pump with Farrons advise. I updated him with the no change result. At this point i would call him after the pump disassmbley if nothing changes. I have been reading online and started to be inclined towards the idea that internals of the pump has something to do. I need to get into that thing and hopefully out. Did it once before, drowing pictures along the way what goes where. Lots of small pieces.
Yesterday 11:54


The problem with this engine is the rack has a spec of rust on it hindering it's free movement or something has happened to one of the governor springs.
This is not a job for someone who has no test equipment and cannot verify that the pump works correctly before it gets assembled into the engine. I advise you to take the pump to a fuel injection shop and have it properly rebuilt and calibrated.
NCboatrx is offline   Reply With Quote
Old 15-05-2019, 11:05   #5
Registered User

Join Date: May 2016
Location: Land of 100,000 lakes
Boat: Boatless for now, looking!
Posts: 72
Re: Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Had the same problem in a Toyota diesel, scared the crap out of me. Return spring in injection pump failed. As noted earlier, best dealt with by a pro, as the new spring will, most likely, require a different shim. If you have a machinist background you will likely have most of the knowledge, and some of the tools required.
Cheers
__________________
Kaos, Panic, Disorder, my work here is done.
Midnight Son is offline   Reply With Quote
Old 15-05-2019, 12:59   #6
Registered User

Join Date: Jan 2015
Location: Hudson Valley, NY
Boat: Albin Vega 27
Posts: 32
Re: Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Just placed an order for a brand new fuel injection pump. I figure if a take it to a pro repair shop, it would set me back give or take the same amount i am paying for the pump (fourfitY$). Getting a pump rebuilt not much cheaper neither. So i am betting all my chips on the fact that its the pump and the new pump would cure the problem.
I have zero experience dealing with the governor stuff. If new pump don't do anything, it will be the next to focus on. I see a spring looking down at the opening for the pump and there is a small spring on the side. Is it something that can be adjusted, replaced....No idea. I just hope the new pump would do the trick.
littledevil is offline   Reply With Quote
Old 15-05-2019, 15:23   #7
Registered User

Join Date: Dec 2012
Location: Mannum, Australia
Boat: Houseboat, 60ft.
Posts: 131
Re: Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Blocked return line? Pressure slowly building up when the relief valve fails to open.
Broken spring etc would go straight away to full revs.
Crack the return line straight after the last injector connection & hang it in a container & start the motor.
Not familiar with that motor but had similar on a 4 cyl Hino motor.
BruceS is offline   Reply With Quote
Old 15-05-2019, 17:07   #8
Registered User

Join Date: Sep 2014
Location: Auckland, NZ
Boat: Compass 790 , 7.9 metres or 26 ft
Posts: 798
Re: Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Good chance new pump will fix it IF problem is not the governor. Have you got a workshop manual for that engine? I'd go thru all the checks they list in that.
You are right about cost of pump vs repair but it would be better to check governor operation first
Compass790 is online now   Reply With Quote
Old 16-05-2019, 06:20   #9
Registered User

Join Date: Jan 2015
Location: Hudson Valley, NY
Boat: Albin Vega 27
Posts: 32
Re: Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Thanks i ll check the return line but its very unlikely. I removed the tank and all and cleaned the hell out of everything.
I have the manual but its not the detailed workshop type. I don't think it exist anyway but i double check, would love to have one. Sometimes in the past beta emailed some extra info with more detailed pic. I ll contact them to see if i can get a bit more onfo about the operation of the governor spring.
littledevil is offline   Reply With Quote
Old 16-05-2019, 06:23   #10
Registered User

Join Date: May 2016
Location: Land of 100,000 lakes
Boat: Boatless for now, looking!
Posts: 72
Re: Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Get a manual from Kubota.
Midnight Son is offline   Reply With Quote
Old 16-05-2019, 07:12   #11
Registered User
 
Cpt Pat's Avatar

Join Date: Feb 2012
Location: Half Moon Bay, CA, USA
Boat: 1963 Pearson Ariel, Hull 75
Posts: 551
Re: Beta BZ482 2cyl diesel Engine revs all the way up and doesn't cut off

Off topic safety aside: This points out am important safety issue. Runaway diesel engines is what destroyed the BP platform Deepwater Horizon. The AC generators aspirated methane from a well blowout, which overrode engine speed controls. The only way to shut down a diesel that is aspirating air mixed with fuel is to cutoff the air intake. All diesel engines on a boat should have a manual or automatic intake air cutoff in case a propane leak reaches the engine intake causing it to overspeed.

Some have hypothesized that sea areas notorious for unexplained losses of vessels may routinely "belch" methane bubbles - causing running diesel engines to runaway resulting in - as NASA has named it - a 'rapid unscheduled disassembly' while the vessel is surrounded by an explosive mixture of methane.
__________________

Cpt Pat is offline   Reply With Quote
Reply

Tags
diesel, engine

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Diesel engine losing revs Feluka Engines and Propulsion Systems 28 21-08-2016 12:59
For Sale: What's a good price for 2cyl Albin Diesel Max Sail Classifieds Archive 0 13-06-2013 21:12
Marine Generator. Low revs or high revs? Russell7171 Engines and Propulsion Systems 8 26-05-2013 07:33
Yanmar, 2cyl, 18hp, model no.? Cheechako Engines and Propulsion Systems 13 03-05-2012 11:25
To Cut or Not to Cut - Underseat Cabinets Jetexas Monohull Sailboats 9 25-02-2012 19:06



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 22:06.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.