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Old 01 December 2008, 08:50   #21
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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.
Even sea water will have frozen if it is -10 deg C!
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Old 01 December 2008, 10:21   #22
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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.
Yes I wasn't on about the oil freezing but water IN the oil.........

It was -5 here last night as well. 3 miles away at the coast it was +2 - quite a difference!!!
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Old 01 December 2008, 10:58   #23
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Update...

Guys just a quick note to say she has defrosted and started first turn of the key - seems to be pumping water well. Thanks for advice everyone.
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Old 01 December 2008, 11:09   #24
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Even sea water will have frozen if it is -10 deg C!
Moving cold water can bring the temp of something stood stationery in it alarmingly low.
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Old 01 December 2008, 11:10   #25
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Guys just a quick note to say she has defrosted and started first turn of the key - seems to be pumping water well. Thanks for advice everyone.
Good stuff! Made up for ya
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Old 01 December 2008, 15:04   #26
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Moving cold water can bring the temp of something stood stationery in it alarmingly low.
Yes but my thermodynamics is a little rusty - but I don't think its possible to reduce it below the temperature of the water itself.
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Good stuff! Made up for ya
me too - I was expecting some serious cost... so now I am thinking I might have to spend my "saving" on a wee auxilliary I spotted at the weekend
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Old 01 December 2008, 17:52   #27
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Guys just a quick note to say she has defrosted and started first turn of the key - seems to be pumping water well. Thanks for advice everyone.
Excellent! Well done that man/engine/RIB deity
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Old 01 December 2008, 19:46   #28
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Thermodynamics? That some kind of dynamo fixed onto one of those single slippers that fit both feet that old people wear? Sounds a bad idea to me!
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Yes but my thermodynamics is a little rusty - but I don't think its possible to reduce it below the temperature of the water itself.
Creating savings from nothing, you must be married. What have ya seen?
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me too - I was expecting some serious cost... so now I am thinking I might have to spend my "saving" on a wee auxilliary I spotted at the weekend
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Old 02 December 2008, 03:22   #29
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Thermodynamics? That some kind of dynamo fixed onto one of those single slippers that fit both feet that old people wear? Sounds a bad idea to me!

Creating savings from nothing, you must be married. What have ya seen?
good assesment! i spotted one of the 2hp johny/rude 2str with just one transom screw. fitting anything else on the transom is impossible and even this might need some creativity. - unfortunately its now sold!
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Old 02 December 2008, 12:02   #30
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good assesment! i spotted one of the 2hp johny/rude 2str with just one transom screw. fitting anything else on the transom is impossible and even this might need some creativity. - unfortunately its now sold!
Always the way isn't it?
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