Air intake modification ideas?

Wendi · Jun 16, 2008

Our TYM's air intake is located low and near the front of the tractor. When conditions are dry, dusty air is easily drawn into the air intake.
We thought we could add pipe or hose onto the air intake and re-route the air intake back along the side of the engine, through the hood and up to a higher stack.

Does anybody have ideas on how we could do this? We can do simple fabrication.

slewisma · Jun 16, 2008

It's been many years since I was a 4X4 pickup modifying youngster but I recall a popular mod back then was a "snorkel" for making 4X4's more likely to survive watercrossings. A little web searching and voila! Have a look here for the general concepts. Need to adapt to the space available for routing and mounting in the TYM but this should give you some ideas:
The Homemade Snorkel for a Bronco

For the TYM, unless you've got some really bizarre uses in mind, you can probably scale this down a bit and keep in inside the hood.

Soundguy · Jun 16, 2008

Do the snorkel idea, and get one of those dust settling 'hat's for it.. IE.. size the pipe fro a standard sediment bowl.. you can get them at tsc.. etc..

soundguy

Wendi · Jun 17, 2008

Scott, thanks for the PVC snorkel idea. Now to find the air intake hose and figure the best route for the air intake hose and the PVC pipe. (Maybe the air intake hose could come straight up from the air filter canister in the front and connect to the PVC which could run along the center top of the hood towards the back and then up.) Both the hood and side panels need to be removable so the junction between the air intake hose and the PVC would have to mate without actually being permanently connected.

Soundguy, what is tsc? Can I find the website?

slewisma · Jun 17, 2008

I think he meant Tractor Supply Company by tsc: www.tractorsupply.com

For the snorkel, the only other thought I had was fewer bends = better air flow.

Soundguy · Jun 17, 2008

Yep.. If possible go straight fromthe air cleaner thru the hood..

soundguy

SPIKER · Jun 17, 2008

Not sure on the TYM but on the jinmas there was/is a mod that unbolts the intake flange mount (4 bolts that takes the intake inlet flange off) rotate the flange over 180 degrees that sends intake hose back towards operator, then with a slight mod of shortening the hose it bends & comes out of side of cowl and right to the FEL to mount the intake air cleaner assy. this would free up access to battery and keep it from sucking hot under hood air. should be several posts on it here and at NYCTOA site.

have to looks & see if you TYM is similar SCMALTS (spelling?) is one who did this I THINK can't remember for sure.

mark m

Wendi · Sep 22, 2008

Thank you all for the very good advice! The project is completed and works great. We found a "cold air " air intake hose at the auto parts dealer for the inside and used ABS for the outside. The mounting hardware is made out of the heavy duty hose clamps we use for our irrigation pipe. Now, it would be nice to put a pre-cleaner on the top of the stack!

Soundguy · Sep 22, 2008

Nice pics.. thanks for posting them.

soundguy

ninefinger · Sep 25, 2008

Nice looking mod. It would appear at least six feet of extra distance was added for air to travel through. Will this affect how the engine will breathe or cool? I do not know or even have a clue, that is why I am asking.

CAT MAN · Oct 2, 2008

ninefinger said:
Nice looking mod. It would appear at least six feet of extra distance was added for air to travel through. Will this affect how the engine will breathe or cool? I do not know or even have a clue, that is why I am asking.

It might run a little hotter!! (might) but should run just as good as stock!! look at some of the old tractors they had it!!!

Wendi · Oct 3, 2008

Yes, we wondered about that (running hotter and decreasing performance) as well. It appears that the new intake actually improved performance slightly: just a little better RPM with full acceleration and the gauge on the temperature meter sits at the same place as it did before modification.

denmansoft · Oct 4, 2008

Cold outside air is what we always wanted for performance when we were building cars in the 70's.

Gary Fowler · Oct 4, 2008

With that short a distance air restriction shouldnt be a problem. You will probably gain a small amount of HP by getting cooler air into the engine than the previously hot air from around the radiator. You should be able to find a pre-cleaner bowl to fit that setup at TSC or even a tractor dealer. Hopefully the size will be the same. If not just get a larger size and fit a PVC reducer between it and the intake pipe you built.

CAT MAN · Oct 4, 2008

Wendi said:
Yes, we wondered about that (running hotter and decreasing performance) as well. It appears that the new intake actually improved performance slightly: just a little better RPM with full acceleration and the gauge on the temperature meter sits at the same place as it did before modification.

thats good to here not only did you improve the design of it you unlocked a little power as well!

Ryan03 · Oct 4, 2008

When I built a homemade snorkel for my Yamaha Big Bear ATV, I was very suprised to find that the snorkel flowed much better than the stock air ducting. When I would try to ford deep water with the snorkel system, the engine would cool off enough to make it sputter under load. At first I thought something was shorting out or I had a snorkel leak, but one look at the plug told me It needed more fuel. I purchased a performance jet kit, and actualy had to go from a 125 stock size main jet to a 132, and now it doesnt miss a beat. All I can figure is that like previously mentioned, the cooler denser air charge from the snorkel plays a big role in performance increases in some snorkeled engines, also, the long straight runs of pipe probably play a role as well. I used 1 1/2 inch heavy schedule pvc pipe with assorted street L`s and couplers, 3 3/16 hose barbs, a trap, and 2 ft of 1 1/2 flexible sump pump discharge hose. here is a pic of the quad with snorkel system.

ninefinger · Oct 4, 2008

Wendi said:
Yes, we wondered about that (running hotter and decreasing performance) as well. It appears that the new intake actually improved performance slightly: just a little better RPM with full acceleration and the gauge on the temperature meter sits at the same place as it did before modification.

That is good to know. My Yanmar has the filter in about the same place, same problems with dust and expensive filters. I have my side panels off right now because of some engine work I needed to do, looking at your set up my panels may not go back on.

sandman2234 · Oct 12, 2008

Until you find a precleaner for the addition, consider coating the intake with a thin layer of grease that you can easily wipe out. Especially if you can put it in at the bends, as that might catch a little of the dust, which will prolong the life of your air cleaner. Remember to change it regularly by wiping out the grease and cleaning it, then reapplying.
David from jax

Soundguy · Oct 13, 2008

Oil bath air filter'd be nice.

soundguy

Wendi · Oct 17, 2008

Weight on the top of the stack is an issue for the pre-filter. We thought that a Centri or Enginaire pre-filter might be a good idea. Though I'd guess that an oil bath cleaner would filter out more of the smaller silt and clay particles.

Perhaps they make oil bath bowls out of lighter material now; plastic rather than heavy glass like the one on our 9N?

David, interesting idea about coating the inside of the tube with grease. Perhaps grease on some sort of easily removeable section or on the inside of the cap would make cleaning and reapplying the grease easier.