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Southern Airboat Gallery Archives

jessies new ride
13 x 7'6" Palm Beach Boat
3A south 4-19-08
Airgator on TV Show
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The Quest For Fire
I run antifreeze in my boat don't know how it would make it into the water unless you have a leak in the cooling system and holes in your boat If you blow a hose it all endes up in the bottom of the boat and all you have to do is leave the plugs in and it should no get in the water. even if you sink the boat the cooling system is still sealed all you have is the over flow bottle and the don't hold enough to matter.
 
Hey MOODFOOD welcome and we all learn a lot from here there are so many good minds on here and every one tries to help I believe anyways. So come on and go on a run and meet and greet.
 
If you really are concerned about the impacts of alittle antifreeze (old type -eythelene glycol SPELLING?) you can use the new type that is supposed to be envirnomentally friendly. I know the seismic industry boats were required to use it while working in a few places. They also required what they called food grade hydraulic fluid, just in case of hose blow outs.

But I have towed a airboat that shredded the prop and the radiator and had leaks in the hull. (Leading edge cutting bar on some of those wooden propellers was mean). So I guess that is another situation where you could loose some.

But it would be diluted to a very small quanity very quickly and probably not a concern. Or at least in my opinion.
 
you can use water wetter its whats required at race tracks its actualy some kind of soap! thunder knows what kind soap it is. the old kind the glocol stuff is good for snake skin and small game pelts just soak it for a couple of days and let it dry
 
Believe it or not straight water transfers heat better than 50/50 water/ ethylene glycol. The best coolant is distilled water if you have aluminum heads tap water and especially well water will eat them up. Distilled water is the best way to go I never run antifreeze because I have never had a cooling system freeze in Florida. The water wetter Croch talked about works great it usually drops my temp around 15 degrees with straight water and almost 10 with 50/50 antifreeze. I have a radiator in my boat that is half the size of anybody else’s and I can beat on my boat all day long and it will not over heat. I run 100% distilled water with one bottle of water wetter and one G.M. anticorrosion pellet. All of the above is environmentally friendly. It is also a good idea to run a high press cap in an airboat I always run a 20LB cap. All yea for the people who are concerned I have been airboating for a long time and have never seen any antifreeze introduced into the eco system. Nothing like what you will see in the parking lot of any grocery store.
 
I had a reader send in an article that we are printing in the August issue, after a major break down and being stranded out in the glades he came up with what he says is a solution to the over heating problem. He designed a special valve cover of aluminum in which a series of channels were machined in the surface of the top of the valve covers, the channels connected an inlet and an outlet threaded hole. The channels are covered by water tight o ring covers. The water that cools them comes from the water the boat is running in via a pump and squeegee mechanism on the stern of the boat. It's quite an interesting theory and I think he might be onto something. He sent a couple of good photos that shows his system.
 
I know this doesn't relate to the car engines above, but thought it would be good info for the aircraft guys relating to cooling.
 
I never had an over heating problem with a car motor ride airboat. I run them hard as I want for as long as I wanted without ever over heating them. When you properly set up the cooling system they are trouble free.
 
Terri, that sounds like a good idea. Generally the oil temp is highest in an engine around the rockers (because they're near the combustion chamber and also from the friction heat generated by the rocker arms. This can be decreased a lot by using roller rockers)

I wonder how he is filtering out the sediment from the water without it getting clogged up.......
 
There is an oil additive and not one you see on TV at one in the morning. This one is used in Formula one, Nextel cup, Bush series and a host of other endurance racing. It works and I have used it in motors that run to hot of an oil temp and it dropped my oil temp 20 Deg. This stuff works. If anybody on this board has an oil temp problem let me know!
 
I've been doing a little research on oil additives for an up coming article, the thing that puzzles me is I have not been able to find any car manufacture or oil company that endorses any of them. You would think that if they were a benefit to the performance of an engine that at least GM or Ford, someone would recommend their use. If anyone knows of additives carrying such an endorsement I'd really like to hear about it.
I have been able to find many companies that discourage the use of such additives. Would love to hear your thoughts...,
 
TerriABW":2nmil7lg said:
You would think that if they were a benefit to the performance of an engine that at least GM or Ford, someone would recommend their use. ...,
Click to expand...

Especially Ford :D

Waterthunder, is this additive of yours available on the market or is it "black market"
 
Just kidding Bubba. I like selling parts for Fords just as much as I like selling parts for Chevys :wink:
 
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