XUV Heater

[cef2lion]

Last spring I purchased an 07 XUV Diesel. I got the curtis cab heater. I installed the heater unit itself in the summer but never plumbed it till this past weekend. A bit of work routing hose from heater to engine and working around the engine. That hose takes the place of the coolant drain plug below the fuel filter. There is a shutoff valve in that line going to the heater. Near the heater this line has a purge/flush/fill T. The other hose coming off the heater runs to a T off the top of the radiator. The gas XUV heater line runs to the thermostat housing.

Took some time to bleed the system after refill. Both lines in an out of heater became warm and hot at times. Radiator was hot. It was very cold that night. Right arounf 0 F. Been two days and the heater blows warms air but not hot. Checked coolant in the overflow and the radiator. Also took off cap at flush valve. All looks well. Cracked the flush while running as well as cracked radiator cap with care.

Talked to Dealer and they said my XUV has a 160 F thermostat. They said to look for a pinched hose. Not thinking that is it unless its under cup holder or battery box.

I asked Dealer if they can talk with Deere tech support and I also have an email into Curtis. The XUV doesn't appear to get that hot in winter at idle. I have yet to hear fan run. It does in the summer and fall but not all that often. My friend has a Curtis heater in his 4110 Deere compact. It cooks him out of the cab in winter. Difference maybe in that the 4110 is running a steady RPM most of the time where the XUV is at idle and up plus moving a good bit faster.

Wonder if anyone has installed the Deere or Curtis heater and what heat output they are getting?

 

[Skipholiday]

Mike (a37b) has the cutis heater installed in his XUV. Maybe he can give you some advice. Hope this helps~!

 

[milkman]

I think you need a hotter thermostat and diesels need rpm to stay warm, don't know how you can keep your rpms up your drive system.

 

[a37b]

Cef2lion
I had trouble at first with it not circulating tried everything,bled the system numerious times, finally called curtis and they said that the older kawasaki engine had a different water pump. I ended up installing a booster pump. It works great now.
Yours sounds like it circulates ok but just doesnt get hot enough. Maybe a 180 or 190 degree thermostat.
Try blocking the radiator up.
Just a thought.
Hope you can get it working.
By the way I have the 620i gas engine.
MM

 

[Engine_Tech]

Diesels also need "work" to make heat. Since diesels don't vary the amount of air that's sucked in (no throttle plate like a gasser), all that cold air cools the engine. At idle, you aren't making a lot of fire to warm things utp. Driving it or working (up hill, load in the back) it some will make the heater work a lot better. Have seen this on diesel tractors many times.

 

[prosumequipment]

...They said to look for a pinched hose. Not thinking that is it unless its under cup holder or battery box...

It is worth checking under the cup holder. I was installing a Prosum Equipment Cab on an XUV that already had the Curtis Heater installed. When I pulled up the cup holder, I noticed one of the hoses was being pinched by a round standoff on the bottom side of the cup holder. I'm sure it was restricting flow as much as it was deformed, and it looked like over time the standoff could create a hole in that hose. If I remember right, that standoff was hollow, so it was acting like a hole punch. The owner of the Gator clipped off the standoff before I put it back together.

 

[cef2lion]

Thanks for all the input. Going to pull cup holder and make sure I didn't pinch hose near the back of the cup holder. Checked the Deere parts site and verified that the thermostat is 160F. They didn't listed different heat ranges for thermostat. Maybe dealer could help there.

Wondering if anyone might have the install instructions for the Deere cab heater and might be able to photo copy them and send them to me so I can compare installations. I looked at the Deere heater in the parts catalog. Like to see where the Deere heater hoses attach vs Curtis. Curtis had you remove the engine coolant drain valve and replace with a hose fitting. The Deere parts site show a valve that might go in the same place but still provides a drain valve. This looks to give a 90 degree to attach heater hose and would provide a better hose approach.

Craig

 

[TOMMYHPX4X4]

what about just blocking half the radiator just like the 18 wheelers do. and in the summer just take off the radiator coveri simple little piece of plastic "lexan"should do the job .

 

[cef2lion]

Will add blocking radiator off to the list of things to try. Looked at that last night. Doesn't look like there is an easy way to slide anything in front of it. Will have to be in front of the grille.

Craig

 

[TWO GUNS]

Tell ya something else will work great, we've used them on equipment several times in front of the radiators. It's called Cora-plast
Plastic cardboard material, plastic, flexible, very durable, can cut to fit with a knife.
Youv'e seen the material before, politicians use them during political seasons for their signs ~~~~~~ Get 'em signs shops for about $1.00-$1.50 a piece for a 18" x 24" sheet ~~~~ You can get 'em different sizes all away up to pieces up to 4x8 & 5x10 ft sheets ~~~~