Reply
 
Thread Tools Search this Thread
 
Old 26 October 2008, 04:47   #11
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: 10,114
Quote:
Originally Posted by Limey Linda View Post
That is a bit like saying " the light bulb in the kitchen is working so everything must be OK".
and generally if the light is on in the kitchen then there hasn't been a powercut, and the fuse hasn't blown so its not a bad indicator of the general effectiveness of the electricity supply!

Is a water pressure sensor standard fit on a 40HP Mariner then? If not can it be relatively easily retrofitted?

How often have you had an unexpected water pressure failure on a well maintained engine that didn't also show with a tell tale failure or over temperature alarm?
__________________
Poly is offline   Reply With Quote
Old 26 October 2008, 04:57   #12
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 Polwart View Post

Is a water pressure sensor standard fit on a 40HP Mariner then? If not can it be relatively easily retrofitted?
No and depends on your level of ability. You'd really need to put a take off from off water jacket to a mechanical gauge.
__________________
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 26 October 2008, 05:38   #13
JSP
Member
 
Country: UK - England
Town: Southport
Boat name: Qudos
Make: 5.4 Searider
Length: 5m +
Engine: Yam 115 V4
MMSI: 235068784
Join Date: Sep 2008
Posts: 3,930
Running abit along side that. Where is the connection for a trim gauge on the motor? And if my motor doesn't have one is there away around that too?
Cheers
__________________
JSP is offline   Reply With Quote
Old 26 October 2008, 14:36   #14
Member
 
Country: Other
Town: San Carlos, Mexico
Boat name: INDE
Make: LOMAC 730
Length: 7m +
Engine: 200 Merc.
MMSI: Please press 1
Join Date: May 2006
Posts: 1,688
Send a message via Skype™ to Limey Linda
Quote:
Originally Posted by Polwart View Post
How often have you had an unexpected water pressure failure on a well maintained engine that didn't also show with a tell tale failure or over temperature alarm?
I believe a water pressure gauge to of great value because it will warn you that something has changed. Maybe a partial blockage to the cooling system, maybe a worn impeller, maybe a failed thermostat. For what they cost it is better to prevent a hard failure. Also I do not want to be looking over my should to look at the pee hole all the time.
__________________
Running around like a head with it's chicken cut off.
Limey Linda is offline   Reply With Quote
Old 26 October 2008, 14:54   #15
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: 10,114
Quote:
Originally Posted by Limey Linda View Post
I believe a water pressure gauge to of great value because it will warn you that something has changed. Maybe a partial blockage to the cooling system, maybe a worn impeller, maybe a failed thermostat. For what they cost it is better to prevent a hard failure. Also I do not want to be looking over my should to look at the pee hole all the time.
Was that a yes or a no?

The cost of the parts may be minimal but if its not trivial to fit then it all mounts up. I agree it might give you warning of a gradual failure, but I suspect the average car driver can't tell you what temperature their car runs at despite the gauge showing them every day, for someone who gets in a boat once a week or maybe less are they really going to spot a gradual drift in a pressure gauge?

I assume you are looking over your shoulder frequently as part of maintaining a good look out.

I'm not saying if its easy to fit its pointless - but the OP is in a 4m Searider with a relatively small engine and limited console space.
__________________
Poly is offline   Reply With Quote
Old 26 October 2008, 15:22   #16
Member
 
Country: Other
Town: San Carlos, Mexico
Boat name: INDE
Make: LOMAC 730
Length: 7m +
Engine: 200 Merc.
MMSI: Please press 1
Join Date: May 2006
Posts: 1,688
Send a message via Skype™ to Limey Linda
Quote:
Originally Posted by Polwart View Post
Was that a yes or a no?

The cost of the parts may be minimal but if its not trivial to fit then it all mounts up. I agree it might give you warning of a gradual failure, but I suspect the average car driver can't tell you what temperature their car runs at despite the gauge showing them every day, for someone who gets in a boat once a week or maybe less are they really going to spot a gradual drift in a pressure gauge?

I assume you are looking over your shoulder frequently as part of maintaining a good look out.

I'm not saying if its easy to fit its pointless - but the OP is in a 4m Searider with a relatively small engine and limited console space.
Hi Polly
Next time you have to pass a stone through YOUR pee hole I bet you wish you had had a pressure gauge.
__________________
Running around like a head with it's chicken cut off.
Limey Linda is offline   Reply With Quote
Old 26 October 2008, 16:06   #17
Member
 
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
I'm heavily with polwart on the water pressure gauge. Remember outboards ran for a lot of years with bugger all by way of gauges and the only way to tell if all was OK in the coolong was the tell-tale. Why else were they fitted & not something with some big numbers on in the console ?

Even now water pressure is not even an option on the sort of motor youd stick on the back of a 4m boat.

Yes any info can be used , but is it really important ? I'd say no - and its as easy / simpler/ quicker / more intuituve to see a stream of water compared to a change in number . Its also surprising what the eye will pick up , by way of change in amount of water pissing out of an engine.
__________________
PeterM is offline   Reply With Quote
Old 26 October 2008, 17:02   #18
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: 10,114
Quote:
Originally Posted by Limey Linda View Post
Hi Polly
Next time you have to pass a stone through YOUR pee hole I bet you wish you had had a pressure gauge.
it would still hurt either way the gauge just tells you its hurting!
__________________
Poly 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 19:47.


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