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-   -   Can a 496 be damaged with freezing temps? (https://www.offshoreonly.com/forums/general-boating-discussion/306272-can-496-damaged-freezing-temps.html)

Keith Atlanta 12-12-2013 01:11 PM


Originally Posted by flying J (Post 4040682)
Start this fugger up lets get to bottom of this


Fukin a right! Put some gas in this biotch and lets go... We'll figure it out later thats for sure!

FIXX 12-12-2013 01:28 PM

i would at a minimum have him tell his mechanic to pull the exhaust manifolds,this way if they are cracked and when they thaw out no water goes into the cylinder if a exhaust valve is open.

pstorti 12-12-2013 02:03 PM


Originally Posted by Cole2534 (Post 4040637)
Ice, under ideal conditions can generate about 114ksi of force. That's well beyond most steels yield tensile and probably past the ultimate tensile as well.

In other words, don't mess with physics.

The heat exchanger is bunch of copper tubes it is toast no question.

bobbowobbo 12-12-2013 04:50 PM

I had a 496 manifold freeze and crack, I saw the crack as soon as I climbed into the engine hold to reconnect the hoses that were SUPPOSED to have been disconnected. I missed the rh on the rh engine, I couldn't get it by hand and forgot about it apparently. Being crafty and blessed with some talented friends we welded the roughly 4" crack and it seemed to work fine.

Scagburner 12-12-2013 05:10 PM


Originally Posted by flying J (Post 4040682)
Start this fugger up lets get to bottom of this

I agree! Shouldn't he need to run it to winterize it? I wonder if it's been done yet? I keep my boat in the heat all winter but still winterize. You just never know when the power is going to go out for an extended period... The last thing I want to worry about during a power outage is the boat freezing... $10 worth of pink chit per engine is well worth the piece of mind.

Powerquest_Baby!! 12-12-2013 08:55 PM

The boat is in a heated warehouse now so he isn't going to go fire it up. It was never winterized but it sounds like he could be looking at a heat exchanger and/or manifolds. I guess we will find out in the spring.....Fingers are crossed that he is ok.

Scagburner 12-12-2013 09:33 PM


Originally Posted by Powerquest_Baby!! (Post 4040906)
The boat is in a heated warehouse now so he isn't going to go fire it up. It was never winterized but it sounds like he could be looking at a heat exchanger and/or manifolds. I guess we will find out in the spring.....Fingers are crossed that he is ok.

Just a thought, Is it sitting full of fresh or salt water?

the deep 12-12-2013 10:10 PM


Originally Posted by Scagburner (Post 4040918)
Just a thought, Is it sitting full of fresh or salt water?

Ice water......:whistle:

Powerquest_Baby!! 12-13-2013 01:51 AM


Originally Posted by Scagburner (Post 4040918)
Just a thought, Is it sitting full of fresh or salt water?

Yes...Full of fresh water

28cigarettess 12-13-2013 10:29 PM

Probably get flamed for this but put a small ceramic cube heater on low setting under the hatch somewhere up high and block the bilge vents with towels until he can get her inside.


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