Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 04-05-2016, 17:21   #1
Registered User

Join Date: Oct 2013
Location: Italy
Boat: Beneteau Oceanis
Posts: 89
Engine mounts diagnosis?

Yanmar 3jh4E 1100 hours 8 years old with yanmar 100 & 150 mounts.

Is there any way to check if my engine mounts need to be replaced? If they have gone 'soft'?

They have not collapsed, the space on top of the rubber is more than a finger and the same on all 4.

Revving the engine in neutral almost all vibration disappears above 2200rpm. When in gear there is a lot more vibration which is why I'm concerned.

I found on the internet some yanmar mounts have lasted 15! years despite the recommended service period of 4 years.

There is more fore and aft vibration in gear than 6months ago but it is still small.

Dragging the propeller in neutral shows some vibration which I wonder if this means the prop shaft is bent?

Engine Flange alignment is within .03mm and I just replaced the propeller cutlass/sleeve bearing.

I read that the engine bracket+mounts should not move more than 3mm when revving hard from neutral to max rpm and then the same in reverse

Any input would be very much appreciated especially considering the price of OEM engine mounts
__________________
sailabroad is offline   Reply With Quote
Reply

Tags
engine

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
After market engine mounts and polymer mounts Rustic Charm Engines and Propulsion Systems 32 10-03-2015 02:13
Need help with diagnosis! chrisferro Engines and Propulsion Systems 8 02-08-2013 15:27
Challenge: Engine Diagnosis Celestialsailor Challenges 195 12-02-2013 20:23
Water Pressure Pump Diagnosis enovillo Plumbing Systems and Fixtures 10 19-05-2009 18:41
Help! Outboard Diagnosis - Electrical Joe500 Engines and Propulsion Systems 13 17-05-2009 21:44



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 19:17.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.