Frozen engine - how bad?

[Poly]

Originally Posted by JSP

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!

[codprawn]

Originally Posted by jwalker

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!!!

[Poly]

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.

[JSP]

Originally Posted by Polwart

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.

[JSP]

Originally Posted by Polwart

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

[Poly]

Originally Posted by JSP

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.

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

[Thumperbob]

Originally Posted by Polwart

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

[JSP]

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!

Originally Posted by Polwart

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?

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

[Poly]

Originally Posted by JSP

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!

[JSP]

Originally Posted by Polwart

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?