How cold before engine damage?

[fwi]

My skis are going to be sitting outside in Muskegon Michigan until november 15th, they are covered and wrapped in plastic. Something has come up and I am not able to get them out until then, my question is how long can they sit outside before engine damage occurs? I know it depends on how cold it gets, I just want to know how much cold weather the engines can endure before its too late? (I have removed the batteries).

 

[SJet]

They should be fine, as long as you blew the water out of the exhaust after your last ride.

 

[steve802cc]

What king of skis.
The cooling system in most stand-ups is self draining as long as you haven't changed the water line routing.

I don't think most Seadoo motors are self draining meaning that the water in the block will freeze and crack the cylinders.

Steve

 

[fwi]

I have a 93 Waveblaster, 99 Kawasaki 750SXI pro and 93 Kawasaki 750SX. The 99 has a Coffmans pipe, the others are stock.

 

[Bigmax]

Georges... the '93 should be fine... if there's any water left in that motor I don't think it could do much more damage... LOL

As for the others... I'd still want to blow out the lines to get any excess water out.

 

[yamanube]

How cold of water can you safely run a ski in without having to worry about it running to lean or overcooling causing engine damage?

 

[Matt_E]

I don't think a cool running motor causes lean issues.
It shouldn't damage anything, either - it just won't run as good as it could/should.

 

[yamanube]

I have read somewhere of people burning down/seizing motors while running in cold water, I dont know how credible the sources where just something I read.

 

[Matt_E]

It's credible. It has not much to do with the cold water per say.
The issue: The cold water does a nice job cooling the engine. The combustion taking place does a nice job heating the piston.
So the concern is that the piston gets hot while the sleeve stays cooler.
The result is a piston that expands in size faster than the sleeve, resulting in what's known as a cold seizure.
The way around this is to properly warm up the engine.

 

[Snackem]

I have read somewhere of people burning down/seizing motors while running in cold water, I dont know how credible the sources where just something I read.

You would think that the water would have to be pretty dang cold, and then you would have to really punish your ski right off the bat, no idle time or anything like that.

 

[thrllskr]

Wait, do you mean I didn't need to run anti-freeze through my 750sx and X2????

 

[Snackem]

Wait, do you mean I didn't need to run anti-freeze through my 750sx and X2????

Just go ahead and dump some of the green stuff into your gas oil mix:woot: I hear it make your ski run better in extreme temps.

 

[Matt_E]

And what would you know about skis running "better"? It seems yours just runs worse and worse.

 

[fwi]

Georges... the '93 should be fine... if there's any water left in that motor I don't think it could do much more damage... LOL

As for the others... I'd still want to blow out the lines to get any excess water out.

Welcome to the X Chad,
Thanks for the info. I am leaving wednesday but the skis have to stay behind until I get back up here in 2 weeks or so.
I just don't know anything about this winterizing stuff and don't want to freeze up da motors!
I am really concerned about my other 2 skis, the one I bought from you is already as dead as it can get........but man, what a nice body!:Banane01:
See you next summer I hope, unless you make it down to Florida first.:cool2:

 

[Snackem]

And what would you know about skis running "better"? It seems yours just runs worse and worse.

So fix it! It's in your garage, what's the hold up? I've had enough of your "theories" as to why it is not running well, just get the job done, it's a good thing that I'm not paying you. BTW when do you want me to drop off my other engine for porting?:Banane01:

 

[Matt_E]

It's that Krazi Kawasaki stuff I tell you. I know Yamahas!

 

[Snackem]

You've got the internet and I'll loan you my shop manual, now get to work!!!

 

[Matt_E]

You've got the internet and I'll loan you my shop manual, now get to work!!!

You've got that wrong.

The Internet has me.:arms:

 

[Snackem]

You've got that wrong.

The Internet has me.:arms:

lol :spankme:

 

[djkorn1]

All my friends and my ski run wayyyyyyy different in cold water. In the late fall and early spring they rip!!! Water 50's Air 50's. It must be running more lean. In the summer, Air 80's and Water 80's they have to be leaned out about a 1/4 turn to run decent.