Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-09-2014, 17:09   #1
Registered User

Join Date: Nov 2010
Location: Seattle WA USA
Boat: Beneteau 367
Posts: 4
How to clean the water intake in a volvo saildrive

I have a Volvo 130 saildrive and I am getting steam on my exhaust, replaced the exhaust elbow, water pump">raw water pump, check for good vacuum on the raw water filter. That did not fix the issue and still have a little steam at full load that goes away when I bypass the water intake from the saildrive and run it though the raw water filter and directly to a bucket that I keep full with fresh water.

.

How do I clean the water inlet part that the diver can't reach without getting the boat out of the water?

TIA
Astolfo
__________________

__________________
Astolfo is offline   Reply With Quote
Old 10-09-2014, 21:04   #2
Registered User
 
NoTies's Avatar

Join Date: Nov 2005
Location: Vanuatu
Boat: Whiting 29' extended "Nightcap"
Posts: 1,378
Images: 2
Re: How to clean the water intake in a volvo saildrive

If it's biological growth then pressurised hot water (as hot as possible) backflushed through the inlet valve should do the trick. If it's cacium scale you will need to use some muriatic acid.
__________________

__________________
Pete

Positively, socially deviant.
NoTies is offline   Reply With Quote
Old 10-09-2014, 21:20   #3
Registered User

Join Date: Nov 2010
Location: Seattle WA USA
Boat: Beneteau 367
Posts: 4
Re: How to clean the water intake in a volvo saildrive

Quote:
Originally Posted by NoTies View Post
If it's biological growth then pressurised hot water (as hot as possible) backflushed through the inlet valve should do the trick. If it's cacium scale you will need to use some muriatic acid.
I am sorry if it is a stupid question but how do you pressurize hot water without spending thousands of $?
__________________
Astolfo is offline   Reply With Quote
Old 10-09-2014, 21:34   #4
Registered User
 
NoTies's Avatar

Join Date: Nov 2005
Location: Vanuatu
Boat: Whiting 29' extended "Nightcap"
Posts: 1,378
Images: 2
Re: How to clean the water intake in a volvo saildrive

A drill pump should do the trick
__________________
Pete

Positively, socially deviant.
NoTies is offline   Reply With Quote
Old 11-09-2014, 14:05   #5
Registered User
 
tpkas's Avatar

Join Date: Aug 2010
Location: Lake Macquarie NSW Australia
Boat: FP Mahe 36
Posts: 44
Re: How to clean the water intake in a volvo saildrive

There's a bit about this on the Fountaine Pajot Mahe 36 thread.

You can clear the intake from the engine compartment and is fairly easy.

Turn the drive leg seacock off.
Remove the hose from the drive leg to the water strainer.
BEFORE OPENING THE SEACOCK make sure the seacock is above the waterline. If not, make an extension using some tube or hose vertically from the seacock to above the waterline. Then you can open the seacock and using a piece of stiff rod (even a straightened coat hanger will do) insert it down through the seacock into the leg. Move it up and down fairly vigorously to dislodge any growth which should then fall to the bottom of the leg. If the inlet holes on the leg are clear of growth then most of the dislodged growth will hopefully fall out of the leg through these holes. When finished I also blow out the intake as hard as I can with a few big lung fulls of air. Reassembly is the reverse and I prime the raw water strainer ( making sure it's lid is well sealed) before opening the drive leg seacock.

Make sure your diver knows that there are inlet holes on each side of the leg AND another one right at the very bottom of the leg too. You may have to repeat this process a couple of times to clear the growth adequately but it has been very successful for me.

Good luck.
__________________
tpkas is offline   Reply With Quote
Old 21-09-2014, 15:17   #6
Registered User

Join Date: Feb 2010
Posts: 21
Re: How to clean the water intake in a volvo saildrive

Mine is a 120 saildrive but I think the construction is similar. Rodding down from the seacock position will not clear the water channel below the gasket level as there is a plate at that level that has an offset. I clear mine by connecting a stirrup type dinghy pump to the seacock and pushing air down through it.
__________________
Slowtack is offline   Reply With Quote
Old 22-09-2014, 13:15   #7
Registered User

Join Date: May 2011
Boat: Hitchhiker, Catamaran, 40'
Posts: 354
Re: How to clean the water intake in a volvo saildrive

I use a piece of threaded rod to clear the holes in the leg whenever I scrub the bottom. Anything small enough to get sucked up through those holes should end up in your raw water strainer.
__________________
Thumbs Up is offline   Reply With Quote
Old 22-09-2014, 20:25   #8
Senior Cruiser
 
Wanderlust's Avatar

Cruisers Forum Supporter

Join Date: Aug 2005
Location: NSW Central Coast
Boat: Lagoon 410
Posts: 499
Re: How to clean the water intake in a volvo saildrive

I had a surprising blockage in my Yanmar SD20 intake. I had been motoring for maybe 15 minutes when the exhaust note changed and only a trickle of water came out.

Pulling things apart I found a small fish caught at the intake valve. With long nosed pliers I managed to get most of it out, but the head remained elusive so I did my best to mash it into small pieces (the boat was still in the water so I didn't want to remove the valve).

Surprising how a fish with head too large to get past the valve got in there in the first place. This is a photo of the tail section.
Attached Thumbnails
Click image for larger version

Name:	Remains of fish.jpg
Views:	213
Size:	33.3 KB
ID:	88632  
__________________
Steve
Wanderlust is online now   Reply With Quote
Old 22-09-2014, 22:45   #9
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Re: How to clean the water intake in a volvo saildrive

Quote:
Originally Posted by Wanderlust View Post
I had a surprising blockage in my Yanmar SD20 intake. I had been motoring for maybe 15 minutes when the exhaust note changed and only a trickle of water came out.

Pulling things apart I found a small fish caught at the intake valve. With long nosed pliers I managed to get most of it out, but the head remained elusive so I did my best to mash it into small pieces (the boat was still in the water so I didn't want to remove the valve).

Surprising how a fish with head too large to get past the valve got in there in the first place. This is a photo of the tail section.
Had the same thing happen with my water maker. I have a strainer over the inlet and the boat was sitting for a 9 months at the dock. When I started up the pump it sucked in a fish barely small enough to get thru the hose. The only thing I can figure is that when the fish was a baby it went thru the inlet strainer and lived & grew in there to a size that it couldn't get out any more, until I came along.
__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 17-10-2014, 11:44   #10
Registered User

Join Date: Oct 2014
Posts: 44
Re: How to clean the water intake in a volvo saildrive

Forget the saildrive passage and connect the input strainer directly to a thru hull. The SD does not need water going up the passage. Mine is a 110


Sent from my iPad using Cruisers Sailing Forum
__________________

__________________
mark maulden is offline   Reply With Quote
Reply

Tags
sail, saildrive, volvo, water

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
Thru Hull size intake on volvo md11c liveitwell Engines and Propulsion Systems 2 17-06-2013 04:55
How Do I Clean Out Soot Form The Air Intake on Ford Dorset Diesel? Shanaly Engines and Propulsion Systems 3 17-02-2013 10:18
Saildrive Water Intake DWT Propellers & Drive Systems 12 27-12-2011 19:21
Want To Buy: Mercruiser Volvo 4.3 MPI 8 Bolt Intake Manifold V6 QuickSilverAWD Classifieds Archive 0 01-09-2011 09:24
Volvo Penta MD 7A Air Intake / Silencer Length emircedes Engines and Propulsion Systems 4 10-07-2010 04:14



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 08:22.


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.