Brassworks heater core

[freedom_in_4low]

I've not had to do a heater core, so I'm curious if the thicker 2 5/8 version would introduce any fitment issues?

@brassworks How's the fit on the thicker heater core? TIA

their post said the fins overhang but do not interfere with wall or blend door which would be an odd claim if they hadn't done a test fit, or at least based it on drawings or models. That's probably the best answer you'll get from them since they addressed it; someone will need to install it and report to know any more.

 

[TJ Jim]

It was cold out yesterday for Tennessee weather. 29°. My oem heater was so hot I had to roll the windows down and let some cool air in. Guess i could’ve turned the temp knob down but……the heat and cold felt good.
On a funnier note. My dog was in the back enjoying the cool air. Then he decided to fart and all I wanted to do is put the top down cause he smelled AWFUL!
Okay back to the brassworks theme.

 

[HornedToad]

We are waiting on someone to install one so we can find out. No pressure @HornedToad

The 20 degree drive home late last night and this thread have me motivated. One question I have before starting is—does the ac evaporator core need to be disconnected in order to get the heater core out? And do I need to take the Jeep to an ac shop first to have the AC depressurized? If so that might be my one hangup to getting the job done this weekend.

 

[Rolled Over Rubi]

The 20 degree drive home late last night and this thread have me motivated. One question I have before starting is—does the ac evaporator core need to be disconnected in order to get the heater core out? And do I need to take the Jeep to an ac shop first to have the AC depressurized? If so that might be my one hangup to getting the job done this weekend.

yes the A/C system will need to be evacuated, both the evap and heater core sit inside of the hvac box, that whole box needs to be removed in order to replace one or the other. take pics along the way when you do it to remember where everything goes. One tip I have is you don't have to completely remove the dash either, you can keep the steering wheel installed and slide the dash on top of it, then angle the passenger side of the dash and tie it to the roll cage to keep it out of the way, saved me a lot of time when I did the job

 

[HornedToad]

yes the A/C system will need to be evacuated, both the evap and heater core sit inside of the hvac box, that whole box needs to be removed in order to replace one or the other. take pics along the way when you do it to remember where everything goes. One tip I have is you don't have to completely remove the dash either, you can keep the steering wheel installed and slide the dash on top of it, then angle the passenger side of the dash and tie it to the roll cage to keep it out of the way, saved me a lot of time when I did the job

Thanks this is great info. I’m going to swing by a shop today if I have time to have the ac drained.

 

[Rolled Over Rubi]

Thanks this is great info. I’m going to swing by a shop today if I have time to have the ac drained.

if you need any pictures let me know I've got a few I believe

 

[Marklar1983]

yes the A/C system will need to be evacuated, both the evap and heater core sit inside of the hvac box, that whole box needs to be removed in order to replace one or the other. take pics along the way when you do it to remember where everything goes. One tip I have is you don't have to completely remove the dash either, you can keep the steering wheel installed and slide the dash on top of it, then angle the passenger side of the dash and tie it to the roll cage to keep it out of the way, saved me a lot of time when I did the job

Be very careful of the hazard light switch on top of the steering wheel. If that breaks off it’s a pain to fix.

 

[Ericshere03]

Be very careful of the hazard light switch on top of the steering wheel. If that breaks off it’s a pain to fix.

I took off the steering column, only added a couple minuets, and avoided a lot of pain. Also, that dash comes out as one piece, only need to remove the windshield trim and the rest comes off as one piece.

In my experience, the heater core is not a bad job, it’s clean and easy access for the most part (the stud behind the engine on the firewall sucks)

 

[Rolled Over Rubi]

I took off the steering column, only added a couple minuets, and avoided a lot of pain. Also, that dash comes out as one piece, only need to remove the windshield trim and the rest comes off as one piece.

In my experience, the heater core is not a bad job, it’s clean and easy access for the most part (the stud behind the engine on the firewall sucks)

the only thing that sucks about doing a heater core is its time consuming, and depending on how badly rusted the studs are you gotta fight em, otherwise its easy. it took me about a day to complete when I used to work at a dealership

 

[Ericshere03]

the only thing that sucks about doing a heater core is its time consuming, and depending on how badly rusted the studs are you gotta fight em, otherwise its easy. it took me about a day to complete when I used to work at a dealership

No rust here in the desert, took me about 4hours, the first time… not including evacuating the AC system. And I’m slow.

 

[Rolled Over Rubi]

No rust here in the desert, took me about 4hours, the first time… not including evacuating the AC system. And I’m slow.

must be nice not having to deal with that must make things a lot quicker in terms of work