Cooling fan.

[Rj1]

I had my Vangaurd 6x6 out for the first time in the woods and had blast with it. It's air cooled which I've owned air cooled ATV's before I have 2 now my Honda Odyssey are air cooled I put a fan on my Honda Odyssey FL350 because it was always running way to hot and the fan helped out a lot. After riding the other day I noticed how hot my Vangaurd 6x6 was I no the reason no air flow and you don't go fast to get air in the dirt bikes that I had that were air cooled always had enough air but the Argo doesn't. So now I'm thinking of adding a fan to it so it gets some air has anyone done this? The other thing I was thinking of adding was a electric low pressur fuel pump because a couple of hills I went up it seemed like it was starving for fuel I had almost a full tank so I know low fuel wasn't the problem. Again has anyone hooked up a electric fuel pump to there Argo and has it helped out?

[Grizzly10]

Check out Atwood Turbo Bilge fan. Work great pushing major heat out of engine bay. Simple setup to expel heat. I have 2 in my Frontier. Big Big difference.

[BF6X6]

Would you have any pictures of the install? Interested in getting my Bigfoot a bit cooler. Did you mount as to blow through the engine shrouds?

[Grizzly10]

I mounted it up top, blowing across top of engine out exhaust side. It pushed exhaust gas away as well. It’s really simple and they are small inexpensive and move a lot of air. I will try and get a pic, next time I get it out. Actually had a pic. I moved its location a little but this is basically set up.

[Grizzly10]

Posted pic in my gallery.

[trevorakm1]

I mounted two 4" fans on the inside of the screen where the exhaust pipe exits the tub. draws the hot air from around the muffler and tail pipe and sucks it out of the engine compartment. They $50 each but worth it. They are little ATV radiator fans, so purpose built. I originally started with computer fans and got a couple years out of them but these are much better.

[Rj1]

So I will definitely install a fan. How about the electric low pressure fuel pump? Every time I look at the fuel filter there's only a small amount of fuel in it and when the machine is running I can't see any at all. I replaced the fuel filter and pump and still the same thing. This is the reason I'm thinking of a electric one. After the machine is running for a while it won't idle I have to keep giving it gas or it will stall when I first start it and for at least a half hour there's no problem then after that the stalling starts .

[Grizzly10]

I have read a low pressure pump will need to be regulated at 1-1.5 psi because the Carbs can’t handle pressure being they are fed by vacuum. I heard this can cause a fire in engine bay. This will need further investigation, I have the stalling as well. It stinks. With the electric pump it could fail and possibly
Leave you stranded which is my issue as well. The vacuum is more reliable I would think. Hope you figure it out. Last night I changed fuel filter to Larger Filter. Was Full of gas the filter and still was choking out and trying to stall on hill. Good luck with this one. Post your solution if you actually fix it.

[Noel Woods]

I have multiple machines with low pressure electric fuel pumps, they work great, stay at 2.5 psi or less to avoid the engine fire issues. As an upside, they are much easier to start in cold weather, and if the machine has a choke, you can bump it off after just a moment. One friend of mine put a 10 psi electric pump in his Max2 machine, I warned him about it and suggested he switch to the low pressure pump to avoid a fire. He called me the next day and told me his machine caught fire the night before and burned down to the frame. Learn from other people's mistakes.

Regarding the no fuel in the line issue, many machines will dump that fuel back into the tank if the usage isn't high enough, usually after it has been turned off for awhile, the fuel will drain out. It would be weird to have that issue while running, unless there is an obstruction in the fuel line or a leak (either fuel or vacuum).

You can purchase these electric pumps on Ebay or Amazon, they are cheap enough that you can carry a spare in the tool bag just in case one fails.
I've put these in everything from Max2s and Max4s, to a I/H tractor and a Land Rover Series 2a. Again, don't go over 2.5 psi. They can be wired into a toggle switch so you just run it when you need to then turn it off.

[Rj1]

Noel Woods. Thanks I was reading about the fire issue so I will make sure it's a low pressure pump. I worried about going up a hill with low fuel in the tank and the machine cutting out on me.

[Laird]

On the majority of small engines, lawn tractors especially, unless it is a gravity feed, the fuel filter appears to be empty. Why i don't know. Just something I have observed. I had a Yamaha Rhino 660 that , if not started for a few days , would crank and crank till it started and it had a manual choke. I installed inline a low pressure pump and wired it to a momentary switch. I could fill the carb with the electric pump and it would start right away then it ran on the vacum pump. If you could mount a pump and a switch and then use it on your hills???I know this is probably impossible cause you need two hands to steer for the most case but sometimes one idea can trigger other ideas. Necessity is the mother of invention.

[Laird]

I have added a 7 inch automotive rad fan in the intake duct which goes to an on/off switch. I have also ordered a cylinder head temp guage and two sensors, one for each plug. Hopefully somewhere down the road I can get a switch wired in that will turn the fan on at a prescribed temp. I have not had any overheating problems as of yet but the build is new. Get everything the way I would like it and then probably sell it. Or so says my wife. Sort of my track record. Had a downpour of about 2 in of rain this morning. Hopefully get back to the swamp today.

[Rj1]

I added two 7in fans one to bring air in and the other to exhaust some of the hot air. I have them hooked up to a switch and they seem to work good. I tested the low pressure fuel pump I bought it's 2.5 psi and I wanted to see how much fuel it would push compared to the stock pump that comes with the motor. I was getting more then twice the fuel and I don't think the carb can handle the volume. Could I hook up the electric pump back by the tank and have it on a switch and run the line through the stock pump then when I feel it's not getting enough fuel turn it on? Would that be to much for the carb even if I only used it fora minute then turn it off?

[Ruffus]

One option for your fuel issue is to make a fuel canister, 3 ports, one in on top off to one side from the fuel pump, one straight underneath for gravity feed & one 2 thirds of the way up the canister opposite side to inlet to return excess fuel back to the tank. That should remedy any fuel starvation issues & prevent too much fuel going to the carb. If you know an aluminum welder, it's an inexpensive easy thing to make.

[john swenson]

i had trouble with my vanguard 21 h.p. engine overheating and apparently causing vapor lock . a nice exhaust fan mounted over the engine compartment took care of that . i only need it when it's hot outside and i'm riding a few hours . if theres a temp switch or such to hook it up to so it kicks on when needed i would like to know . not sure it needs to run constant ? thanks , johnboy va.