Reply
 
Thread Tools Search this Thread
 
Old 20 June 2013, 09:12   #1
Member
 
Country: UK - Scotland
Town: Dornie
Make: Ribtec
Length: 7m +
Engine: 2 x Honda BF130
Join Date: Apr 2010
Posts: 24
Mercury 3.3 telltail just drips

Hi

The wife has a 90's Merc 3.3 long shaft for her wee yacht and since we've had the engine it's telltail has always just dripped. I've just replaced the impeller on a std service and it's pumping like a good 'un.

The engine hasn't had a lot of use but it will be soon so I want to ensure that water flow to the engine is ok.

Is it a case of pushing hot water thru the system to try clean out any salt deposits?

Any guidance welcome.
__________________

__________________
Delitubby

Live your life as if it was a revolution - don't just evolve!
delitubby is offline   Reply With Quote
Old 20 June 2013, 09:51   #2
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,645
RIBase
Try pushing a bit of strimmer wire up the telltale as far as it'll go, the tell tale might be part blocked.
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is offline   Reply With Quote
Old 20 June 2013, 11:09   #3
Member
 
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,610
Quote:
Originally Posted by Nos4r2 View Post
Try pushing a bit of strimmer wire up the telltale as far as it'll go, the tell tale might be part blocked.
Quote:
Originally Posted by delitubby View Post
I've just replaced the impeller on a std service and it's pumping like a good 'un.
Wakey wakey Nos! (Good advice tho'.)


The fact your new impeller is pushing a lot of water through the engine is 90% of the battle. What may be going on inside is that salt has literally caked & baked onto the surfaces. Even warm water isn't going to shift that in a hurry, and the other problem you might have is by "cooling" with hot water you do more harm than good.

If there is a quantity of water coming out the exhaust port at the bottom of the leg it's probably OK.
__________________
9D280 is offline   Reply With Quote
Old 20 June 2013, 14:43   #4
Member
 
Country: UK - Scotland
Town: wormit
Boat name: lots of them
Make: various
Length: no boat
Engine: all types
Join Date: Dec 2004
Posts: 388
Take the fuel tank off and drill out the fitting that the hose goes onto with a 3mm drill. Make sure you do not drill in more than 3/4" as the drill will snap!
__________________
Davie is offline   Reply With Quote
Old 20 June 2013, 15:02   #5
Member
 
Tim&Linda's Avatar
 
Country: UK - England
Town: Crewe
Boat name: BLACK BOSS
Make: humber & searider
Length: 9m +
Engine: 2x200 ETEC & 2x40
MMSI: ex directory
Join Date: Jun 2013
Posts: 581
RIBase
I have had the nozzle blocked as it comes thru the glass casing , , small pipe inside could be blocked
__________________
Tim&Linda is offline   Reply With Quote
Old 20 June 2013, 16:17   #6
Member
 
Country: UK - England
Town: Looe
Make: Delta
Length: 4m +
Engine: Mercury
Join Date: Apr 2004
Posts: 1,335
The tell tales on those are usually pretty crap from new!
__________________
Black Dog Marine
www.blackdogmarine.com
Turbodiesel is offline   Reply With Quote
Old 20 June 2013, 16:18   #7
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,645
RIBase
Quote:
Originally Posted by 9D280 View Post

If there is a quantity of water coming out the exhaust port at the bottom of the leg it's probably OK.
That's how I read it-that it was pumping through the exhaust port, but the telltale was dribbling.
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is offline   Reply With Quote
Old 20 June 2013, 16:47   #8
Member
 
Country: UK - England
Town: Gloucestershire
Boat name: Osprey
Make: Osprey Vipermax
Length: 5m +
Engine: E-tec 300 G2
MMSI: TBC
Join Date: Dec 2006
Posts: 4,013
I have just services a Yamaha 2HP and since I owned it the waterflow out of the leg has never been more than a slight spray.

I recently stripped the head from the leg and found loads of salt deposits in the various channels that route the water to the head and then also in the head. I used a piece of wire to loosen everything up and then flushed with hot water. It took a few goes however now the water flows out much more easily.
__________________
---------------------------------------------------
Chris Stevens

Born fiddler
Chris is offline   Reply With Quote
Old 20 June 2013, 18:35   #9
Member
 
Country: UK - Scotland
Town: Dornie
Make: Ribtec
Length: 7m +
Engine: 2 x Honda BF130
Join Date: Apr 2010
Posts: 24
Thanks to all. I'll try your solutions and hopefully that will sort it.

Thanks again!
__________________
Delitubby

Live your life as if it was a revolution - don't just evolve!
delitubby is offline   Reply With Quote
Old 20 June 2013, 21:48   #10
Member
 
Locozodiac's Avatar
 
Country: Other
Town: Lima-Peru
Boat name: Nautile
Make: Sea Rider Boats
Length: 4m +
Engine: Tohatsu 18 /30 HP
Join Date: Sep 2007
Posts: 1,706
If your engine is same as posted pics, it's a rebadged Tohatsu. The best way to solve this problem, is to remove right side cover, pull water tube from engine, will see a small peeing tube. Get a thick needle, thick fishing line, W40 or carb cleaner plastic cannula and insert back & forth several times. Usually cloggs internally and very rare on water indicator exit.

That engine has a water flushing port under engine lower body, check red line in second pic, unscrew nut, buy a water flusher if possible and connect it there, conect hose to house water pipe, pressure will pop-out any obstruction, whether salt , debris, whatever. Flush with engine off.

Flushing from time to time will maintain all water paths in inpeccable condition. On those engines will see poorly peeing or hesitation at idle speeds, will pee near a teenager when giving more juice to engine, providing small crankcase tube is completely unobstructed.

Happy Boating
Attached Thumbnails
Click image for larger version

Name:	Tohatsu 3.5-1.JPG
Views:	213
Size:	61.9 KB
ID:	81702   Click image for larger version

Name:	Tohatsu 3.5-2.JPG
Views:	395
Size:	76.1 KB
ID:	81703  
Attached Images
 
__________________

__________________
Locozodiac is offline   Reply With Quote
Reply

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 16:22.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.