Cruisers Forum
 

Go Back   Cruisers & Sailing Forums > Engineering & Systems > Engines and Propulsion Systems
Reload this Page MD2030 slight change in revs
Cruiser Wiki Click Here to Login

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 21-05-2022, 09:28   #1
Nearly an old salt
 
goboatingnow's Avatar

Join Date: Jun 2009
Location: Lefkas Marina ,Greece
Boat: Bavaria 36
Posts: 19,944
Images: 3
MD2030 slight change in revs
Occasionally after several hours of motoring I will notice a 100-200 rpm change( largely detected by ear ) followed a few minutes later by a return to the original rpm. It’s occasional maybe once in a day of motoring. There’s no stuttering or anything.

The filters are clean ( recently changed ) as far as I’m aware.

Anyone any ideas.
__________________
Interested in smart boat technology, networking and all things tech
goboatingnow is offline   Reply With Quote
Old 22-05-2022, 03:47   #2
Nearly an old salt
 
goboatingnow's Avatar

Join Date: Jun 2009
Location: Lefkas Marina ,Greece
Boat: Bavaria 36
Posts: 19,944
Images: 3
Re: MD2030 slight change in revs
Anyone with any similar experience
__________________
Interested in smart boat technology, networking and all things tech
goboatingnow is offline   Reply With Quote
Old 22-05-2022, 04:09   #3
Registered User

Join Date: May 2022
Posts: 12
Re: MD2030 slight change in revs
I have the same engine and it happens to me sometimes. I have so many other problems that I have chosen to ignore this one
Spurs is offline   Reply With Quote
Old 22-05-2022, 04:13   #4
Nearly an old salt
 
goboatingnow's Avatar

Join Date: Jun 2009
Location: Lefkas Marina ,Greece
Boat: Bavaria 36
Posts: 19,944
Images: 3
Re: MD2030 slight change in revs
Quote:
Originally Posted by Spurs View Post
I have the same engine and it happens to me sometimes. I have so many other problems that I have chosen to ignore this one


I wonder if it’s just a funny characteristic of that engine and best ignored.
__________________
Interested in smart boat technology, networking and all things tech
goboatingnow is offline   Reply With Quote
Old 22-05-2022, 16:04   #5
Registered User

Join Date: Apr 2005
Location: Seabroook Texas
Boat: Pearson 323, Tayana V42CC
Posts: 938
Images: 1
Re: MD2030 slight change in revs
Having your injectors cleaned or running some diesel purge through the engine might solve the issue.
Scubaseas is offline   Reply With Quote
Old 22-05-2022, 23:23   #6
Nearly an old salt
 
goboatingnow's Avatar

Join Date: Jun 2009
Location: Lefkas Marina ,Greece
Boat: Bavaria 36
Posts: 19,944
Images: 3
Re: MD2030 slight change in revs
Quote:
Originally Posted by Scubaseas View Post
Having your injectors cleaned or running some diesel purge through the engine might solve the issue.


Good idea. Thanks I’ve a few long journeys coming up we’ll see how we get on
__________________
Interested in smart boat technology, networking and all things tech
goboatingnow is offline   Reply With Quote
Old 22-05-2022, 23:50   #7
Marine Service Provider
 
Emmalina's Avatar

Join Date: Jan 2012
Location: Thailand
Boat: Herreshoff Caribbean 50
Posts: 959
Re: MD2030 slight change in revs
Sounds like the alternator load have you got an acr ?
__________________
Steve .. It was the last one that did this !
Emmalina is offline   Reply With Quote
Old 23-05-2022, 04:47   #8
Registered User

Join Date: Mar 2021
Location: Flagler County, FL, USA, Earth
Boat: Lagoon 380
Posts: 744
Re: MD2030 slight change in revs
Ive got two of those motors. Dont recall that instability, but plan on 6 + hours of running today. Will pay attention to weirdness.
team karst is offline   Reply With Quote
Old 23-05-2022, 15:47   #9
Registered User

Join Date: Mar 2021
Location: Flagler County, FL, USA, Earth
Boat: Lagoon 380
Posts: 744
Re: MD2030 slight change in revs
Tachs showed no unusual behavior today. Ran 2500 all day.
team karst is offline   Reply With Quote
Old 24-05-2022, 01:19   #10
Nearly an old salt
 
goboatingnow's Avatar

Join Date: Jun 2009
Location: Lefkas Marina ,Greece
Boat: Bavaria 36
Posts: 19,944
Images: 3
Re: MD2030 slight change in revs
My one didn’t falter yesterday either.
__________________
Interested in smart boat technology, networking and all things tech
goboatingnow is offline   Reply With Quote
Reply

Tags
md2030

« Speed control lever Yanmar 2gm20f | Westerbeke 4-107 exhaust elbow/riser? »
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Linear Mode Linear Mode
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
Marine Generator. Low revs or high revs? Russell7171 Engines and Propulsion Systems 8 26-05-2013 07:33
Slight Knocking 3GM30F Örjan Engines and Propulsion Systems 1 28-09-2009 14:26
Very slight oil over fill...problem? svjobeth Engines and Propulsion Systems 13 11-01-2009 13:42
Slight Dismasting witchcraft The Sailor's Confessional 8 07-10-2008 08:17
Slight Chemical Taste from Katadyn 40e new in box, but bought second-hand S/V Penzi Plumbing Systems and Fixtures 8 06-05-2008 08:59

Advertise Here


All times are GMT -7. The time now is 23:23.

Contact Us - Cruisers & Sailing Forums - Sitemap - Community Rules - Terms of Service - Privacy - Accessibility - Top

Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
close

Privacy Guaranteed - your email is never shared with anyone, opt out any time.


ShowCase vBulletin Plugins by Drive Thru Online, Inc.