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Everything posted by A-man930
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Love the update. Thank you for sharing! One thought though: I find it hard to believe that the 0w40 contributed to any failures... by design, there's no reason you shouldn't run 0w40 year-round actually. In the end, all those oils you've listed are 40-weight oils - the 0w just doesn't become as thick with lower temperatures...
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I intended to take some "finished" pictures of my Dakota seat conversion, but I suffer from tunnel vision when I'm in the middle of a project and forget about the camera... I'm happy with the outcome; they sit low enough and are quite a bit more comfortable than the stock seats.
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We've all been there. Similarly, I often find myself doing the "lay under the truck and dream-up/design things in my head" routine. It's hard to explain when the wife sees you in the same position 20min later... I've even fallen asleep like that.
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HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
Made a bunch of headway today! Evaporator came in; It sits just a little too tall in the box so I used a heat gun to soften the bottom corner opposite of the drain of the box for a little more clearance, the lines are arranged differently (side-by-side) so the foam gasket has to be remade. And after all that, I have to AGAIN remake the gasket -
Sorry to be that guy, but the shaft from the column to the box is the intermediate shaft... the sector shaft is inside the steering gear: Anyways, carry on. Tight fit for all that!
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HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
What hoses were you missing? The ductwork or vacuum hoses? -
I'm stealing that one.
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Very nice! Just goes to show you can fix almost any of this stuff if you aren't intimidated.
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HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
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HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
This piece was somewhat more difficult to remove. Lots of patience required, it'll be good knowing all the metal parts inside aren't going to rust away for a while longer. -
HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
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HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
Well I couldn't help myself. This stuff just looks so crusty in there and there were only a few rivets to remove. Though I did crack part of the housing -
While your in there ( Heater core )
A-man930 replied to Sly_Jeeper's topic in MJ Tech: Modification and Repairs
While I understand your general thought here, I think you're overdoing it. With a properly maintained cooling system and good electrical grounds, you really shouldn't have to change out a heater core ever again. What's the alternative anyways? Electric heat? Some would call that pissing in the wind because you're just going to overwork your vehicle's charging system and it won't produce as much heat. Engine coolant flow through the heater core is pretty well like a free lunch; the coolant gets hot anyways, might as well put it to some use. -
HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
This is also interesting: https://www.amazon.com/Spectra-Premium-7-4173-Condenser-Cherokee/dp/B000C7QC4O -
HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
Wait a minute, NAPA shows the 91-96 XJ (also MJ 90-92) evaporator having the tube-nut fittings for an expansion valve and being plate/fin! Also, 93+ will be optimized for R134a... perhaps that's my problem with the whole system in general. Also found this discussion helpful: https://www.naxja.org/forum/showthread.php?t=1122182 This vendor might be useful as well: https://jeepair.com/ -
HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
Interestingly, the late-model XJ is an orifice tube system vs. the early one using an expansion valve; this is the "filter" 75sv1 mentioned and it changes the system fairly significantly. The late model is not only a plate/fin design, it also uses spring lock connections instead of tube nuts - this will make it impossible to attach my expansion valve... so is part of this "some modification" game converting to an orifice tube system entirely?? VS the early design: -
HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
Here's Limey's posts about his box refurb: -
HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
Can't speak for any other years, but my temp blend door is cable-actuated. My evaporator is a replacement I got from NAPA over 10 years ago. At that time most all of their A/C parts were sourced from 4 seasons I did struggle to get acceptable performance from the A/C back in the day but I never was able to determine exactly why. My biggest suspicion was a problem within the box because PLENTY of condensate would come out the drain but the discharge air was only so-so. -
HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
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HVAC box refurb questions/advice
A-man930 replied to A-man930's topic in MJ Tech: Modification and Repairs
How did you clean it out? Wire brush? Soap and water? Solvents? The OE adhesive-backed stuff seems like it'll be a pain to remove. I notice the metal parts inside have a fair amount of surface rust going on... really tempting to get that all painted, but that would require drilling out rivets and generally talking it all further apart... How far did you take it? -
I took this box apart two or three years ago and I'm now ready to begin clean up, repair, and reassembly. Before I begin, has anyone on here gone through this process? If so, is there any advice you could share? I'm not even sure exactly what I'm asking for, but I have a bad habit of tearing deep into things just to later find out somebody has already figured out a better way to do something. I have a plan working to remake the large foam seals.
