SailNet Community

SailNet Community (
-   Engines (
-   -   repair yanmar motors (

JohnnyChristo 07-02-2014 08:57 AM

repair yanmar motors
Hi all
I'm considering buying a cat that has been salvaged I believe it capsized. It has two yanmar diesels apparently oil on tappet cover appears clean.
I'm sure they weren't running at time of immersion
I'm thinking pulling them out leaving heads on removing crank pistons cam shaft flushing oil galleys diesel pump hopefully ok.
Any thoughts on hours of labour , hone cylinders? Replace seLs rings n bearings.
Any thoughts would b useful

Dog Ship 07-02-2014 11:57 AM

Re: repair yanmar motors
If they were in the ocean and are still submerged you may be able to rebuild them. I stress the "may" part of that statement.
If they went into ocean and have been removed from the ocean and have sat for "any" period of time then they will make great boat anchors.
Fresh water is not so bad but they are probably junk as the air will destroy them once they have been submerged.

Omatako 07-03-2014 04:28 AM

Re: repair yanmar motors
The barrels of a diesel engine immersed in salt water rust enough in a day to make the pistons almost impossible to get out.

You can get them out with a big hammer but they will not be usable so budget for new pistons.

JohnnyChristo 07-05-2014 11:20 AM

repair yanmar motors
Thanks for the advice.
I'm not sure if they got water in them but removing the sump plug should tell me.
Yup I won't bother trying if evidence of water.
Thnx guys

newhaul 07-05-2014 11:39 AM

Re: repair yanmar motors
Fwiw if they turn over and have compression they are rebuildable if they are frozen pull heads and make the rest an anchor

All times are GMT -4. The time now is 05:48 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
(c) LLC 2000-2012

For the best viewing experience please update your browser to Google Chrome