Super Jet Should I add a second cooling line?

[550headache]

Since I'm starting from scratch and have the ski in a million pieces should I add a second dual cooling line? Couldn't hurt right? Run one to the motor and one to the pipe?

What side do I add the line? Port side looks like it will work ok but I don't know how the stock cooling is plumbed through there. Any tips? I already have the 3/8 6 foot drill bit for running wires that should work well


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[ProSouth]

Opposite side of exhausting cooling line, you'll have to add the cooling line to the other side of the pump too

 

[Harbor]

You may want to run both to your exhaust manifold that way if one line plugs up you'll will still have cooling. The other way you could loose cooling to either your exhaust or engine depending on which plugs up.

 

[Vumad]

You may want to run both to your exhaust manifold that way if one line plugs up you'll will still have cooling. The other way you could loose cooling to either your exhaust or engine depending on which plugs up.

If you can run with one line plugged and not blow your motor up, you do not need dual cooling. I read a lot about how dual cooling is an insurance policy. Motors are suppose to get hot. Dual cooling is to make them run harder and not over heat. Dual cooling when there is not a need can lead to cold seize (hot pistons in a cold cylinder). You should be running single cooling until you need dual cooling, and if you are not hot enough with dual cooling, you should run restrictors to get you somewhere in between.

The only advantage to doing the work now, is that if you do decide to run dual or parallel cooling, you can switch later and keep your siphon bilge.

Dual cooling = 2 line to manifold
Parallel cooling = 1 line to manifold, 1 to pipe, they stay on separate loops.

 

[iangdesign]

You may want to run both to your exhaust manifold that way if one line plugs up you'll will still have cooling. The other way you could loose cooling to either your exhaust or engine depending on which plugs up.

That's kinda overkill don't ya think? Run one to the mani and one to the head and have two different overboard lines. That way you can keep track of where water is/isn't flowing.

 

[tor*p*do]

really it depends on your motor and water temps
stock motor? single cooling
Pipe, MSD, hi comp head, porting, bigger carb, warmer southern waters = dual cooling
I prefer dual over parallel, pipe runs a little hotter and I believe safer