Reply
 
Thread Tools Search this Thread
 
Old 30 November 2008, 18:15   #11
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
Can you get it indoors with the lower unit in a bucket of cold tap water to help defrost it?
__________________
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 30 November 2008, 18:29   #12
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: 10,112
Quote:
Originally Posted by Nos4r2 View Post
Can you get it indoors with the lower unit in a bucket of cold tap water to help defrost it?
unfortunately not tonight. the engine is bolted to the transom, and by the time I de-rig steering, electrics, throttle cable etc the weather will probably be warming up. I will take it back to the boatshed at the marina tomorrow - and can certainly leave it in a bucket there - not sure how cold it will be as its not the most substantial building but it should be above zero. You said cold water - does that suggest doing it gradually is better than using warm water?

I could even leave it in warm salty water outside tonight (salty to stop it refreezing)?
__________________
Poly is offline   Reply With Quote
Old 30 November 2008, 18:34   #13
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
You said cold water - does that suggest doing it gradually is better than using warm water?
Yes-heating it rapidly isn't a good idea. It'll cause a sudden increase in pressure in any air in the gearbox for a start.Just the temp it comes out of the tap will be OK.
Quote:
Originally Posted by Polwart View Post

I could even leave it in warm salty water outside tonight (salty to stop it refreezing)?
That might be an idea-or add some antifreeze to the water instead would be better.
__________________
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 30 November 2008, 18:59   #14
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 4,962
It was -4 here today and it's -9 now. You'll likely be at similar temps. Bung some antifreeze into the water and put the engine back in up to it's neck, if you're worried about how to warm it up.

Edit: Ooops, sorry Nos, didn't notice you mentioned that.
__________________
JW.
jwalker is offline   Reply With Quote
Old 30 November 2008, 19:08   #15
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 jwalker View Post
It was -4 here today and it's -9 now.
No prob
Jesus! -9!

Salt won't do the business then. Antifreeze is really the only option.
__________________
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 30 November 2008, 19:31   #16
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: 10,112
Quote:
Originally Posted by jwalker View Post
It was -4 here today and it's -9 now. You'll likely be at similar temps. Bung some antifreeze into the water and put the engine back in up to it's neck, if you're worried about how to warm it up.
thanks Jeff, only 0.5L of antifreeze here which is probably not enough to stop my 50L bucket from freezing, if it really is as cold as that. Likewise I would need much more salt than Mrs P keeps in the kitchen to prevent that much water freezing. So I will take it back to port edgar tomorrow and pick up 5L of antifreeze on the way and leave the leg in that all day tomorrow.
__________________
Poly is offline   Reply With Quote
Old 30 November 2008, 20:03   #17
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 4,962
Quote:
Originally Posted by Polwart View Post
... So I will take it back to port edgar tomorrow and pick up 5L of antifreeze on the way and leave the leg in that all day tomorrow.
If you're going to Port Edgar, can you not just put it back into the sea?
__________________
JW.
jwalker is offline   Reply With Quote
Old 01 December 2008, 04:44   #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: 10,112
Common sense

Quote:
Originally Posted by jwalker View Post
If you're going to Port Edgar, can you not just put it back into the sea?
JW - don't be coming out with common sense simple solutions like that - when clearly there is a distinct lack of intelligence at this end to have frozen it in the first place .

It seems to be a little milder today - the frost is clearing from the boat and I saw a drip come out the cooling water inlets earlier - so its going in the right direction. Hopefully a day in the shed at Port Edgar will be enough - if not it will go for a dip tonight...
__________________
Poly is offline   Reply With Quote
Old 01 December 2008, 05:08   #19
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
Out of interest I searched again on the freezing point of gear oil (although the more knowledgeable here have already stated it wont be that.)
Another source says Hydraulic Oil, Gear Lube & Gear Oil freezes @ -10.
Now imagine you moor your boat up and leave the leg in the water, you bugger off to get the car and trailer and your delayed for a bit. The flowing water will be at a lower temp to standing water (correct me if I'm wrong on that) and your box freezes as bad as a nuns box.
Will have to think on next time to pull the motor out of the water.
__________________
JSP is offline   Reply With Quote
Old 01 December 2008, 08:36   #20
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 4,962
Quote:
Originally Posted by JSP View Post
...Another source says Hydraulic Oil, Gear Lube & Gear Oil freezes @ -10.
Nah. My Castrol data sheet for my gear oil states the pour point to be -36c. My Fuchs hydraulic oil pour point is -45c and -42c dependent on grade.
__________________

__________________
JW.
jwalker 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 03:04.


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