mojave heater

GPin.....factory heater core gets the initial hot water, then the mojave. Mojave is more efficient, so I think it will provide the first dose of heat and, yes, I probably will just keep the factory heater set to defrost and use the mojave for the cabin.

Thanks to GPin, Boyink and Willysnut for pointing out the risk with running copper line for the project. The 5/8" heater hose worked just fine with no sharp bends and minimum cutting. Only copper tubing needed were two small 90 degree elbows for the new connections.

No plans whatsoever for A/C, power steering or even carpet. Next upgrade will more than like be suspension or possibly upholstery

 

I am looking at replacing my stock heater with that Mojave one. I have a question, how is the flow compared to the stock piece. Right now I don't get much omph out of the stock defroster. I know the flapper must be worn out since I still get some flow to the feet when it's on defrost.

So, how is the flow????

Thanks
High5

 

It's been pretty warm in the Atlanta are over the last few days, but we've got some fairly cold weather...30's...on the way. Mojave output is very good. If all flow is directed thru the one hose and the vents are closed, it is very similar to a hair dryer on full speed and hot. It will make short work of any defrosting needs and it provides a concentrated shot of powerful hot air.

My factory defrost makes a lot of racket but not much output thru the defrost vents. Either my flapper is not working properly or I have numerous leaks that will need correcting. You can just barely feel the warm air coming thru the windshield frame vents, and that is on high speed.

I am very pleased with the Mojave and having it below my seat makes it easy to adjust the direction and airflow. Should be a very versatile unit.........

 

Sounds like our stock setups are about the same. I have a gift cert to 4wd.com buring a hole so that might be what I order. How was wiring??? Pretty straight forward????

Thanks

High5

 

Sorry, High5...just saw your question

Wiring was very easy ...three separate wires for Low, Medium and High fan speeds, a ground, and a hot to the fuse box. Wires were just long enough to reach the switch located near emergency brake release. Only additional wire needed was for hot lead to an ignition-switched open terminal on the fuse box. Insulated crimped-on female terminals made the wiring easy.

 

Got my Mojave coming, should be here tomorrow. I'm planning on cold weather this year so I thought I better get it done. I can't wait to tear that huge, poor functioning stock piece out. I can't wait.......

High5

 

UPS dropped off the heater and plenum today. It doesn't say in the directions or anywhere how this is to be mounted. Is there an up or down??? I plan on mounting with it facing down and the port for the defroster on the driver side. Sound good???

Anyone???

thanks

High5

 

I think that leaves two louvered facing down that you can direct at the feet of the passenger and in the general direction of the driver.
Mine is mounted heat blower down and that the way it's plumbed. Seems ok. Puts out a lot of heat.

 

Actually, in my installation under the drivers seat, the defroster duct points to the passenger seat. There were four mounting points that took 1/4X20x2" stainless steel bolts thru the drivers floor pan. I raised the whole assembly about a 1/4' so that water/dirt would not accumulate under the heater.

Here's a couple of pictures of the Mojave under drivers seat.........

 

That's a clean machine! Looks good there.

 

Hey guys, just reviving an old thread.

I just installed my mojave and am pleased with the heater performance, but I'm just not too happy with the defroster. Just like the stocker.

It blows hard going into the windshield frame, but has no omph coming out of the ducts. Not sure why. I bought the mojave to 'fix' my defrosting issues and now after installing it, I don't think that's happened.

Any help would be great.

High5

 

Not enough air flow????

 

Nope....

It's honestly like a blow dryer going in, barely noticeable coming out. I don't get it.

 

Get some incense and check for leaks in the defrost system. You may be losing some pressure some where.

You can follow the smoke ripples back to the source or introduce it to the intake of the heater and look for the smoke to come out where the leak is.

 

I feel your pain !!!

After I replaced the windshield plenum on the stock unit and had the blower motor rebuilt, I thought I had the problem licked. My efforts definately improved the output, but not very noticeable. After about ten minutes the windshield would finally clear and the louvers would feel warm. Before I decided on the mojave, I considered using narrow stick-on weatherstripping to seal all of the suspected leaks. After looking at all the possibilities, I opted for the mojave.

Haven't had an occasion to use the flexible defrost hose off the mojave yet, but like you said, its like a hair dryer set on full speed/hot ! Just a few seconds of that air flow should do the trick and then the factory set-up can kick in.

With it being so hot in the Southeast this year , I am really looking forward to some cool fall weather and firing up the mojave. You might consider just running the flexible hose off the mojave and then you can point it anywhere you like, including sticking it in your jacket !

 

Well,

I think I'm going to order myself a new windshield frame gasket and see what that accomplishes. I have been meaning to do that for a long time, just always forget when it comes time to order. I'm going to order that and a new bikini top since mine is pretty thrashed.

That's not a bad idea on the flexible hose to use defrosting. I honestly thought I would wire this up and be all sorts of impressed with my defrosting. It might be a little better, but not a whole lot.

High5

 

I do understand that there is a lot more area for the air flow to come out. But, it's not anywhere even close. I'm sure I have some leaks and I'm hoping by putting a new gasket in it will help. We shall see.

Litterally, it's the same flow as a blow dryer going in and a very very soft breeze coming out. I haven't even hooked the water up to it to see how hot it gets.

High5

 

Go the old VW Bug route and put them between the seats. May even be able to get such animals from VW suppliers.

Hmmm, I might go to them for a between the seats parking brake handle setup. My rollcage blocks the handle under the dash. I want to put it between the seats anyway. Pretty much out of the way there. Or between the drivers seat and the side of the jeep.:hurrican:

 

The copper tubing would need to be insulated, in order to keep the water as hot as heater hose would. I would just use a quality heater hose.
I plan to install one of these units in my 71 Commando.