my 2009 Mudd OX

[FGuedon]

Mudd Ox Exhaust

AussieMax,

What kind of exhaust did you put on it? I live in South Mississippi and it is over 90 degrees all the time. The first time I drove my Mudd Ox it overheated and I felt like I was driving a cabless John Deere tractor - it was so hot in the cab! Anything to make it cooler I will do. Taking the cab off helped a lot but still hot. I am considering either putting a bigger fan or maybe an oil cooler that I saw on the Kohler web site. Hydraulic temp got up to 220 as well. The Guy I bought it from had put a screen over the air duct inlet to keep trash out but I think this was decreasing air flow. It hasn't run hot since but now I am worried. I was running wide open for about 10 miles, and swimming some through Mississippi River Backwater going to our hunting camp with four adults. I have read on this site that wide open speed is the most stressful on the system. What experience do you have with heat, overheating? Any problems? It seems like everybody that has a Mudd Ox lives in cold climates.

[FGuedon]

By the way, I bought my Mudd Ox from MoAllen with 9.6 hours on it. Very clean and I love it! Just worried over heating issue. Haven't noticed anyone else complaining on here.

[hancock]

So Allen sold his Ox. I was wondering what happened to him........he hasn't posted on the forum in awhile.

I wouldn't worry about the screen on the fan intake not being there. I was curious why he did that.....I haven't had any problems with debris entering the body cavity like he did.

The heat issues are a concern for me. I haven't gone through a summer yet in Missouri with my Ox, and I know Mississippi gets hotter than here, but I've already dealt with the high temps from a long cruise and the heat from under the seat and the higher temps on the hydraulics concerns me somewhat. (and that was barely 80 degrees outside). You are right in pointing out that a lot of the Ox owners live up north in cooler climate areas. I'm curious to see how the Mudd Ox fares if and when they start making their way down south in the warmer climate areas. Time will tell if that becomes an issue. It would help a lot in the cab to block where the heat escapes from under the seat, (into the back of your legs), but I can't help but wonder if this would make the engine bay even hotter. HMMMM.

Hancock

[FGuedon]

I was thinking about putting electric cooling fans like on high performance cars on each side under your feet. Blow cool air back over the hydraulic pumps and the engine. That would add more cool air in the engine compartment and keep the temperature lower under the seat. It looks like about a five inch fan would fit with no problem. My other idea is to change out the engine bay fan. There is a 10 inch there now and I measured it and there is room for a 12 inch. This only increase CFM flow by about 30%. I am looking for something that will double the air flow. Stronger fans draw much more amps however, then you have to worry about charging/battery drainage problems. The Kohler website mentions an oil cooler that decreases engine temps by 40 degrees. That might be the way to go. I am going to try to get in touch with someone at Mudd Ox and see if they have any advice.
This is the fan that would double CFM and would fit. Amperage goes up from 6.4 and CFM of 650 to amps 13.5 and CFM 1360.

Size 12 pull / Part# 2029 - The Fan Man

[Brian in AK]

Has anyone tried wrapping the exhaust? Seems like it would help a lot. I'm going to look into it even though I'm in Alaska, should help deaden some sound also... I Googled it and it is pretty cheap - you could probably wrap the whole exhaust for less than $50.

Regards,
Brian

Exhaust Wrap and Heat Protection

[akexpress]

Matt is working on the solution for those who have this problem. Bigger fans and an alternator kit to supply the additional amps needed for the fans. this is only a problem for those who road the machine for long periods. the heating doesn't seem to be a problem when you are doing maneuvering a lot or even working them hard just full throttle full hydraulics in a straight line for long periods.

[Roadtorque]

I wonder if it would be a problem (even with low speed maneuvering) in Arizona at 115 degrees in the afternoon?

[FGuedon]

Matt called me on my cell phone this afternoon and we talked for about 30 minutes. Wow! He had emailed me this a.m. and said he would get in touch with me later this week. Needless to say, I wasn't holding my breath. While I was talking with him, they were working on mounting a new 105 amp alternator kit with larger fan on one of the Mudd Ox at the factory. He had already looked at the web site I mentioned above and the extra current needed to run the fan. He feels the piece of fabric over the inlet was a large part of my problem, but agreed in certain circumstance the engine bay does get hot. The Kohler engine already has the oil cooler built in. The "kit" they are working on will be able to be added to previously purchased machines without much difficultly. He hoped it would be available in the next couple of weeks. I told him to go ahead and order mine now! Apparently there are commercial operations that want more current to run lights all the way around the Mudd Ox to light up the entire area. That is what I call customer service! Quite impressive!

I cracked the plastic throttle lever, where you squeeze it, by standing outside the machine and squeezing it kind of at an angle. He new the machine I had purchased from MoAllen and informed me that my Mudd Ox didn't have the heated throttle on it, but had the switch on the dash for it. Allen had already informed me of this. He said he would just go ahead and send me the entire new heated throttle cable since that was the one that was suppose to be on there.

Matt, if you read this, you Rule! Thanks a lot! From a Happy New Mudd Ox Owner!

[Amphiman1]

keeping cool....

Matt is working on the solution for those who have this problem. Bigger fans and an alternator kit to supply the additional amps needed for the fans. this is only a problem for those who road the machine for long periods. the heating doesn't seem to be a problem when you are doing maneuvering a lot or even working them hard just full throttle full hydraulics in a straight line for long periods.

Does this mean you have to BUY the kit..??.Even AFTER you bought the machine?

[Roger S]

I think all that stuff is standard on the new model. We were riding the first weekend of this month in 18 degree weather, and all the changes were limiting how much heat he could get to the cab. Kind of hard to design for hot and cold extremes without some tweaking for local conditions.

[AussieMax]

Well, I fitted the new alternator kit some weeks ago with the larger engine bay fan, and it works very well. The new fan pulls heaps more air out of the engine bay, and out of the seating area. This may be a problem for those who need heat in their cabs, but for us in the tropics it's a winner. The new alternator supplies enough power to run both fans and lights on high beam with plenty to spare. I didn't really have much trouble with the standard setup, except when using high beam for long periods of time. The battery got a bit lazy but never let me down. With the new setup, the battery is fully charged no matter what you are doing.
To answer the earlier question about what exhaust I fitted, all I did was lift my muffler up similar to what the new machines have as standard. It puts the muffler nearer to the fan and seems to get rid of the heat better. It also gives more clearance and accessibility to the cvt belt and battery. Mine was a very early machine, I'm pretty sure most machines over there have this exhaust on them already.

[mudbug3]

AussieMax ,

Thats an exellent report for those Mudd-Ox owners that have complained about heat issues. It sounds like this new upgrade really does the job that it was supposed to do.