Reply
 
Thread Tools Search this Thread
 
Old 20 April 2004, 17:18   #21
Member
 
Country: UK - England
Town: Herne Bay
Boat name: Rotary Rescue
Make: Pacific 22
Length: 6m +
Engine: Mermaid 160
MMSI: 235021725
Join Date: Nov 2003
Posts: 328
water outlet

For info on some engines the water take off for the tale tale is on the supply to head and block cooling or off of stat housing and therefore a small hole is supplied at the end of the tale tale so that not all the water is spat out via the tale tale (back pressures it)
__________________
Paul F is offline   Reply With Quote
Old 20 April 2004, 17:43   #22
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
Daniel

It is nothing to worry about really. The Mariner 40 will have a temp sensor on it which in the event of the engine overheating will sound a buzzer in the control box (at which point you rapidly turn off engine).

When you pick your boat the dealer should go through it with you running and explain how and when water will flow from the tell tale. Once you have used it a couple of times you will get used to how long it takes for the tell to get up to full pressure and know when its been a bit too long and stop engine to make sure.
__________________
**Paul**
Brixham BSAC
tue is offline   Reply With Quote
Old 20 April 2004, 18:15   #23
Member
 
Country: Germany
Town: Flensburg
Make: Avon Searider
Length: 4m +
Engine: Suzuki DT75 ?
Join Date: Feb 2004
Posts: 50
The discussion of this thread is very similar to likewise ones in other forums- when will there be somebody of the outboard- designers noticing it? The prices for these motors are arificially held to an exorbitant level- a pressure gauge for cooling water is not such a miracle anymore that they couldn`t supply it with the motor?! Or do these guys want us to burn them- good for their sales-numbers when the stupid user buy new ones more often....
greetings,
Wolfgang
__________________
ribfreak is offline   Reply With Quote
Old 20 April 2004, 18:45   #24
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
What you need to buy is an Optimax. That way you get the privalge of £500 worth of Smartcraft guages that shows you the block water pressure
__________________
**Paul**
Brixham BSAC
tue is offline   Reply With Quote
Old 20 April 2004, 19:57   #25
Member
 
Country: UK - England
Town: london
Boat name: Frances May
Make: vailant DR450
Length: 4m +
Engine: mercury 50 hp
Join Date: Sep 2003
Posts: 761
Send a message via Yahoo to Daniel TD5
feel a bit better now seeing that most engines are the same me being
new to this i though the engines were well made due to the high purchase
cost at least its got two year warrenty on it. but valiant give five years
on the boat and they cost about the same
__________________
GET A RIB GET A LIFE
Daniel TD5 is offline   Reply With Quote
Old 20 April 2004, 20:28   #26
Member
 
Country: UK - England
Town: Looe
Make: Delta
Length: 4m +
Engine: Mercury
Join Date: Apr 2004
Posts: 1,409
The tell tale oulet is modified by us for the RNLI Mariner 40s, ( hope i dont get told off for tell people this!!)

We take the tell tale fitting off, drill the hole out to i think its 10mm and push the hose through the hole. Then put a cable tie on the outside of the cowl tray to stop the hose going inside the cowling.

We have done it to stop it getting blocked up. It wont effect your engine.
The RNLI have been using this system for a long time with no problems.

I spent hours measuring temperatures and water pressures on these engines and gradually made the tell tale hole bigger and bigger to make sure the would be no effect on the engine.
__________________
Turbodiesel is offline   Reply With Quote
Old 20 April 2004, 20:33   #27
Member
 
Country: UK - England
Town: Looe
Make: Delta
Length: 4m +
Engine: Mercury
Join Date: Apr 2004
Posts: 1,409
Also forgot to say, the tell tale should come out immediatley, they do have a thermostat but when its shut it will still have a tell tale. Thw cooling water will not be going around the powerhead while the Thermostat is shut.

Some of the older mariners only have a telltale when the engine is hot, and
the V6 engines are thermostatically controled which is why the telltale pulses, rather than having a contstant water flow.
__________________
Turbodiesel is offline   Reply With Quote
Old 20 April 2004, 20:43   #28
Member
 
Country: UK - England
Town: london
Boat name: Frances May
Make: vailant DR450
Length: 4m +
Engine: mercury 50 hp
Join Date: Sep 2003
Posts: 761
Send a message via Yahoo to Daniel TD5
if i make the mod to the engine by drilling the tell tail out to 10mm will this affect
the warrenty from mariner

tims who started this thread has a ex RNLI engine so i wonder why his had not been done before
__________________
GET A RIB GET A LIFE
Daniel TD5 is offline   Reply With Quote
Old 20 April 2004, 20:43   #29
Member
 
Tim M's Avatar
 
Country: France
Town: Côte d'Azur
Boat name: Beaver Patrol
Make: Avon Searider SR4
Length: 4m +
Join Date: Jan 2004
Posts: 5,934
Mine's an ex RNLI Mariner 40 - but it has a regular tiny fitting on the end.
I'd never considered removing the fitting. I think I'll do this; it's too dam small!!
__________________
Tim M is offline   Reply With Quote
Old 20 April 2004, 22:44   #30
Member
 
Country: UK - England
Town: Leatherhead
Length: no boat
Join Date: Aug 2001
Posts: 907
I used to have the same problem on my Mariner 60 - many palpitations were suffered until my engineer told me not to worry about the strength of the t/t stream. The t/t on my current Suzuki is so strong I'm sure it could move the boat on it's own at a push. It can also be rotated so I can play at being a jet-ski if need be .

Would drilling out the outlet fitting out not raise a possible problem with back-pressure (or lack of it) i.e. too much water though the t/t = not enough water going round the block?
__________________
Peter (nick, nick) T

Age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
Ribald is offline   Reply With Quote
Old 21 April 2004, 04:51   #31
Member
 
Country: UK - England
Town: Beverley
Boat name: TBA
Make: Unknown
Length: 6m +
Engine: Tohatsu 8Hp
Join Date: Apr 2004
Posts: 257
If you do ever 'cook' an impeller you'll be getting bits of it stuck in the cooling system for ages afterwards - any tricks for flushing for you engineers? I had problems with an engine that had been run in surf off an sandy beach and the housing for the impeller was scoured, if you're in any doubt change this as well as it drove me mad for 2 years before I figured it out and numerous impellers. Now good as new... Also have an old Suzuki with a 13 year+ impeller in it is this a record?
__________________
Roohairy

"I'm not lost, I'm exploring...."
roohairy is offline   Reply With Quote
Old 21 April 2004, 10:02   #32
Member
 
Country: UK - England
Town: Looe
Make: Delta
Length: 4m +
Engine: Mercury
Join Date: Apr 2004
Posts: 1,409
Yes it does effect the water pressure but only by a very small amount, I cant remember the figure. But its not enough to effect the engine.
__________________
Turbodiesel 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




All times are GMT. The time now is 12:30.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.