Thread Tools Search this Thread
Old 30 January 2010, 13:44   #1
zookeeper's Avatar
Country: UK - England
Town: Greatstone
Boat name: timanfaya 2
Make: zodiac
Length: 5m +
Engine: mariner 75
MMSI: 235079206
Join Date: Jul 2009
Posts: 119
limescale on out board

have mariner engine which has been used by water authority in fresh water, but the leg is covered in" limescale" any suggestions on how best to remove this?

zookeeper is offline   Reply With Quote
Old 30 January 2010, 13:50   #2
Country: UK - England
Town: Gloucestershire
Boat name: Osprey
Make: Osprey Vipermax
Length: 5m +
Engine: E-tec 300 G2
Join Date: Dec 2006
Posts: 4,008
Killrock Gel ?

Certainly works on my taps

Chris Stevens

Born fiddler
Chris is offline   Reply With Quote
Old 30 January 2010, 14:06   #3
RIBnet admin team
Poly's Avatar
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 9,422
If its genuinely limescale then any acidic solution will remove it - the trick will be making sure that the metalwork on the engine isn't damaged at the same time. Are you sure it is limescale not some sort of horrible corrosion of the aluminium leg. If you are looking to dunk the leg in something (rather than carefully apply only to areas which won't be damaged) then something relatively gentle like citric acid (from pharmacists?) should be less harmful to any sensive bits.

If it is limescale on the outside of leg, I would be very concerned about the state of the interior of the engine cooling passages.
Poly is offline   Reply With Quote
Old 01 February 2010, 11:26   #4
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,621
White vinegar on a sponge, followed by a fresh water rinse. Should take care of it.

jyasaki is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

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 -5. The time now is 06:13.

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