Reply
 
Thread Tools Search this Thread
 
Old 22 November 2009, 08:47   #21
Member
 
spartacus's Avatar
 
Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 60hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 3,270
RIBase
Quote:
Originally Posted by Jimbo View Post
I kind of resent that a bit Nasher.
Interesting post. Circumstances change all the time, and as indicated, things were out of your hands. Hope you get her back in the water soon once the engine's sorted.
__________________

__________________
spartacus is offline   Reply With Quote
Old 22 November 2009, 08:49   #22
RIBnet admin team
 
willk's Avatar
 
Country: Ireland
Make: Redbay Boats
Length: 9m +
Engine: 370hp
Join Date: Feb 2008
Posts: 12,928
RIBase
Marine growth is dependant on quite a number of factors. Low salinity and high turbidity will certainly slow things up plant wise. Most animicules tend not to like this much either. There will be some seasonal effects too. Long days and rising water temperatures in spring see a surge in growth that would not be witnessed in the late summer. On reflection, I suppose a murky riverine marine would be a low growth area. Unfortunately it's a lot quicker around here
__________________

__________________
willk is offline   Reply With Quote
Old 22 November 2009, 11:37   #23
Member
 
Country: UK - England
Town: Scillies
Boat name: Freedom
Make: Searider
Length: 5m +
Engine: Yam 2st 90
Join Date: Jan 2007
Posts: 335
Quote:
Originally Posted by Knot Yet View Post
Ahh okay 9 months sounds more reasonable - that was a scary amount for 10 weeks - made me wonder why anyone would keep their RIB in the water and not dry stacked

J
How about because I can row out and get to play anytime I have an hour off and the weather is half decent. I just acid wash the hull 3 or 4 times a season.

Ian
__________________
walruz is offline   Reply With Quote
Old 22 November 2009, 11:49   #24
Member
 
Knot Yet's Avatar
 
Country: UK - England
Town: Horsham
Boat name: Knot a RIB
Make: Avon Typhoon
Length: 4m +
Engine: Yamaha 25hp
Join Date: Sep 2009
Posts: 868
Now you've put it like that Ian - makes me wonder why I park mine on the drive - damn!!!!!
__________________
Sometimes my mind not only wanders ..... it leaves completely

Member of the ebay Blue RIB cover club.
Knot Yet is offline   Reply With Quote
Old 22 November 2009, 12:03   #25
Member
 
Country: UK - Wales
Town: Southampton
Boat name: DynaMoHumm/ SRV/deja
Make: Avon8.4, 5.4 & 4.777
Length: 8m +
Engine: Cat3126 Yam 90 &70
MMSI: 42
Join Date: Dec 2003
Posts: 6,556
Bad dog gnasher

Quote:
Originally Posted by Jimbo View Post
I kind of resent that a bit Nasher.
I kinda resent it too. You should leave stating the bleeding obvious to me and gArfie. No more Scooby snax for you.

Jimbo

As you were using the boat daily then that in itself would keep the bottom fairly clean. How long was it moored without use to get that bad, no wonder thay call the place Sh*t creek

I'm genuinely sorry to hear that you've been knocked for money and had somebody Fkk up an engine for you, I know just how painful and annoying that can be. Does the instructors liability insurance cover mechanical negligence or is it just cover liability when underway?. Cos it strikes me that he/she was liable and negligent and that could be grounds for a claim.

As you are only too well aware of my views on Pwerboat Instructors needing expeience, I won't bang on about it here but, I wonder if you'd agree with me that a PBI needs to be able to prove a degree of mechanical and boatkeeping competence. Perhaps the RYA should set up a course for petrol engine maintenance as well as diesel (or better still an exam) and maybe those courses should be a pre requisite prior to a PBI course.

After all the margins in running a PB2 course can be quite tight and it takes a lot of courses to pay for a fkkd engine
__________________
Here it comes again, I don't stand a chance
Soul possession, Got me in a trance
Pullin' me back to you - Deja Voodoo
Rogue Wave is offline   Reply With Quote
Old 22 November 2009, 12:43   #26
Member
 
Country: UK - England
Boat name: Seashell
Make: Redbay
Length: 7m +
Engine: Inboard diesel
Join Date: Jan 2004
Posts: 5,263
Quote:
Originally Posted by Rogue Wave View Post
As you are only too well aware of my views on Pwerboat Instructors needing expeience, I won't bang on about it here but, I wonder if you'd agree with me that a PBI needs to be able to prove a degree of mechanical and boatkeeping competence. Perhaps the RYA should set up a course for petrol engine maintenance as well as diesel (or better still an exam) and maybe those courses should be a pre requisite prior to a PBI course.
I strongly agree with that point.
__________________
Tim M is offline   Reply With Quote
Old 22 November 2009, 13:36   #27
Member
 
Country: UK - England
Town: Manchester
Boat name: n/a
Make: n/a
Length: under 3m
Engine: n/a
Join Date: Apr 2009
Posts: 76
Sorry to hear about your misfortune I know how difficult it can be to run a small business especially when things get tight financially, fortunately I never had to face the combination of problems you have, for what it's worth, I feel for you.

Obviously, I mean that in a manly, empathic manner not a.....well, anyway.

One thing that puzzles me, is how does a diesel (and an old design at that) manage to rev to 14,000?
__________________
The Beard is offline   Reply With Quote
Old 22 November 2009, 13:43   #28
Member
 
Country: UK - England
Boat name: Seashell
Make: Redbay
Length: 7m +
Engine: Inboard diesel
Join Date: Jan 2004
Posts: 5,263
The way the engineer explained it (and I'm no mechanic) it basically "ran away with itself". How this happens or how this is possible I don't have a clue, but my understanding is something catastrophic happened, it sucked in loads of fuel and air, ran faster and faster until it eventually killed it's self. We initially thought it might be seized. Apparently its far from it, theres no compression at all - its basically eaten its self.
__________________
Tim M is offline   Reply With Quote
Old 22 November 2009, 14:25   #29
Member
 
Country: UK - England
Boat name: Angel-B
Make: Ex Y boat
Length: 3m +
Engine: Suzuki 9.9HP
Join Date: Apr 2007
Posts: 584
Quote:
Originally Posted by Tim M View Post
The way the engineer explained it (and I'm no mechanic) it basically "ran away with itself". How this happens or how this is possible I don't have a clue, but my understanding is something catastrophic happened, it sucked in loads of fuel and air, ran faster and faster until it eventually killed it's self. We initially thought it might be seized. Apparently its far from it, theres no compression at all - its basically eaten its self.
Diesel engines rely on the heat generated by compression to ignite the diesel fuel, and control the engine revs by varying the quantity of fuel injected.

If the quantity of fuel injected is not restricted, the engine revs will rise (ie it will run away). A diesel engine is not fussed where it gets its fuel from, or what fuel it gets - a blown turbo or other failure that releases lube oil into the engine's air intake provides a great source of fuel.

Under these circumstances, shutting down the diesel supply or electrical supply will have no effect - the only thing that will work is cutting out the air supply - firing a CO2 extinguisher down the air intake is usually effective.

Be grateful that the engine remained intact - sometimes a piston or crank will let go and the ensuing shrapnel can be somewhat hazardous to health.

Cheers

Chris
__________________
chris123 is offline   Reply With Quote
Old 22 November 2009, 14:26   #30
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
Quote:
Originally Posted by Tim M View Post
The way the engineer explained it (and I'm no mechanic) it basically "ran away with itself".
This can smetimes happen when there is a really bad failure and the engine starts dragging engine oil into the cylinders. I have seen this happen on freelander and it was quite a scary experience, the engine revved its nuts off and the guy jumped out of the car in the middle of cheltenham with the ignition keys in his hand

He just had to stand there and wait until the engine very suddenly stopped with a very nasty banging noise as it all let go.

Not a nice experience and I imagine if the Old Spice had been in gear when this happened someone could have been in for the ride of their life
__________________

__________________
---------------------------------------------------
Chris Stevens

Born fiddler
Chris 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 16:42.


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