Reply
 
Thread Tools Search this Thread
 
Old 30 March 2004, 04:26   #1
Member
 
Country: UK - England
Town: New Forest Hampshire
Boat name: Moonshine
Make: Jeanneau Sun 2000
Length: 6m +
Engine: Honda 6hp
Join Date: Feb 2004
Posts: 138
OPTI 150 - Should it do that ?

I have a new to me Mariner OPTI 150 (2000) - At tick over when first started my son noticed water coming out from under the bottom cowling .Is this normal or should I be worried?

From looking at the workshop manual I think its OK and coming from two exhaust ports under the bottom cowling but I am a bit new boat paranoid.

(Will try to attach diagram from workshop manual when I can work out how to do it)
__________________

__________________
philip is offline   Reply With Quote
Old 30 March 2004, 07:08   #2
Member
 
Country: UK
Make: Ribcraft
Length: 4.8m
Engine: Mercury F60 EFI
Join Date: Dec 2003
Posts: 89
It might be the tell-tail. This is the used cooling water leaving the engine. If so, this is definetely normal...in fact, you should have been worried if you didn't have a tell-tail. If it isn't the tell-tail, then I'm not sure what it could be. On an Opti 150, the tell tail would be a pretty powerful stream, not a little dribble.

Hope this helps,
Robert
__________________

__________________
Robert1 is offline   Reply With Quote
Old 30 March 2004, 10:07   #3
Member
 
Country: UK - England
Town: New Forest Hampshire
Boat name: Moonshine
Make: Jeanneau Sun 2000
Length: 6m +
Engine: Honda 6hp
Join Date: Feb 2004
Posts: 138
Robert,

Thanks for the response - The tell tail is as it should be and the smart guages indicate water temp and pressure are OK.

I suppose what I really need to know is - are there exaust outlets under the bottom cowling ? This would explain what I am seeing. I would have thougth someone out there would have taken the cowling off and this would save me having to do it if I don't have a problem.

Cheers

Phil
__________________
philip is offline   Reply With Quote
Old 30 March 2004, 11:51   #4
Member
 
Richard B's Avatar
 
Country: UK - England
Town: Devon
Boat name: White Ice
Make: Ranieri
Length: 5m +
Engine: Suzuki 115hp
Join Date: Jul 2002
Posts: 5,015
Quote:
Originally posted by philip
are there exaust outlets under the bottom cowling ?
What do you mean, Philip... do you mean:
a) Lower than the base of the main engine cowling
b) Covered by the "bottom cowling"
c) something else?
A picture or diagram may assist!
Richard B is offline   Reply With Quote
Old 31 March 2004, 03:08   #5
Member
 
Country: UK - England
Town: New Forest Hampshire
Boat name: Moonshine
Make: Jeanneau Sun 2000
Length: 6m +
Engine: Honda 6hp
Join Date: Feb 2004
Posts: 138
Richard,

b) Covered by the "bottom cowling"

Trying to attach diag.
__________________
philip is offline   Reply With Quote
Old 31 March 2004, 03:14   #6
Member
 
Richard B's Avatar
 
Country: UK - England
Town: Devon
Boat name: White Ice
Make: Ranieri
Length: 5m +
Engine: Suzuki 115hp
Join Date: Jul 2002
Posts: 5,015
If you're having problems with attaching a picture, does this: Uploading pictures help?
Richard B is offline   Reply With Quote
Old 31 March 2004, 03:31   #7
Member
 
Country: UK - England
Town: New Forest Hampshire
Boat name: Moonshine
Make: Jeanneau Sun 2000
Length: 6m +
Engine: Honda 6hp
Join Date: Feb 2004
Posts: 138
Richard,

Thanks for the link - fingers crossed diag should be here:

Have also e-mailed you a picture .

Cheers

Phil
Attached Thumbnails
Click image for larger version

Name:	anotated leg1.jpg
Views:	300
Size:	19.7 KB
ID:	5018  
__________________
philip is offline   Reply With Quote
Old 31 March 2004, 05:58   #8
Member
 
Country: UK - England
Town: New Forest Hampshire
Boat name: Moonshine
Make: Jeanneau Sun 2000
Length: 6m +
Engine: Honda 6hp
Join Date: Feb 2004
Posts: 138
And now I've got the hang of posting pictures here's a shot of what the OPTI is connected to - Our new baby.
Attached Thumbnails
Click image for larger version

Name:	hot flush1.jpg
Views:	304
Size:	199.2 KB
ID:	5021  
__________________
philip is offline   Reply With Quote
Old 31 March 2004, 14:15   #9
tue
Member
 
Country: UK - England
Town: Paignton, Devon
Make: Chinook and Viking
Length: 7m +
Engine: 150 Etec + 125 Merc
Join Date: Jul 2003
Posts: 526
The two slots at the bottom are the exhaust openings above the water. They are connected to the grp cowling via a rubber bellow. They allow exhaust to be vented from above the waterline aswell as through the prop. This is mainly done to cut down on the back pressure the water causes and allows the engines to run better.
__________________
**Paul**
Brixham BSAC
tue is offline   Reply With Quote
Old 01 April 2004, 03:26   #10
Member
 
Country: UK - England
Town: New Forest Hampshire
Boat name: Moonshine
Make: Jeanneau Sun 2000
Length: 6m +
Engine: Honda 6hp
Join Date: Feb 2004
Posts: 138
Tue

Thanks for your reply - your going to regret selling me that workshop manual a little knowledge being a dangerous thing and all that .

It would appear from my manual that the rubber bellow connects to the round hole in the previous diagram see below. And that the two slots vent freely underneath (covered by) the bottom cowling.

If this is the case would I expect to see cooling water running down the drive shaft housing from a gap between the bottom cover and the drive shaft housing? Should I be concerned?
Attached Thumbnails
Click image for larger version

Name:	opti diag.jpg
Views:	229
Size:	150.2 KB
ID:	5035  
__________________

__________________
philip 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 20:52.


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