Insulate the aluminum tubes only? No need to insulate the low side reduced barrier hoses? Can you suggest a material that i can use for insulation? Proair showed me 2 types of material a grey foam type tape and a black tarry looking tape.
Micro-Tube Parallel Flow Condenser
- Thread starter Dissent
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I know you did so i followed. Lol. So far only 1 of 2 fittings got the nylog on the o ring. On the 2nd one i did. I just appied it on shaft where you crimp and the thread.
smritte
SILVER Star
Just the aluminum, I used foam water pipe insulation on my jeep. Worked great but, it only lasted a couple of years before breaking down. It was cheap though. The black tape sounds like what we insulate TXV's with. I was going to see what the latest heat wrap was when i did mine. Insulating is not a must, it just helps some. My thought is, I live in a hot area, I need every little bit I can get.
Scott
Proair told me to insulate the tube that "sweats" with the black sticky tape. They mentioned high or low but cant remember which one. So it must be the low side as you mentioned.
Ill do another experiment once I find my assortment of o rings.
Blue Nylog is fully compatible with modern HNBR O-rings and all refrigerants and non-mineral oils. It is actually made for lubricating and sealing fittings and O-rings.
I will assume the O-rings were of any of the recent materials (any would be fine).
Nylog is made from a synthetic refrigeration grade compressor oil, so naturally it is designed to be used in an anaerobic environment (free of atmosphere/free oxygen).
So my WAG (and I am guessing here)... is that just like certain lubricating oils (and refrigerants) it is hygroscopic (will attract moisture) and can become acidic because of this. I've never experienced degradation of O-Rings from having used Nylog...but I've never let one soak in it...exposed to atmosphere.
Well that explains it. Cant get a better answer than this. Thanks for explaining that. My "test subject" has been exposed to atmosphere hence the degradation.
Will Van
GOLD Star
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- #450
Good point, I already have a relay in place with the fan.Ideally you want to wire the electric fan to a relay.
Yes, a relay should be used. A bit like having to tell folks you need air in your tires.
But...I suppose we shouldn't assume everyone would know.
Will Van
GOLD Star
Yes, a relay should be used. A bit like having to tell folks you need air in your tires.
But...I suppose we shouldn't assume everyone would know.
Haha, yeah. Based on the photo, it wasn’t clear that a relay was being used. I just didn’t want anyone to wire the fan directly from the A/C switch. I hope the wiring diagram helps someone either way.
Haha, yeah. Based on the photo, it wasn’t clear that a relay was being used. I just didn’t want anyone to wire the fan directly from the A/C switch. I hope the wiring diagram helps someone either way.
I understand...and it is well to make all 'how to' information here as monkey proof as possible. My intent was simply to show the wires needed at the trinary switch. The rest of the circuit has been covered so many times I didn't feel it necessary to repeat it. But I should have considered some folks are starting at ground zero.
Good job.
Im working this weekend so nothing so far. I know its taking forever.
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- #456
No rush, just curious.
Well fellas, just an update with my mess... I ditched the two electric pullers and installed the engine driven fan. I bought all new stuff, and modded the Aisin blue hub clutch with 20,000 cst oil and adjusting the thermostat inside per Landtank's thread. It works great. Where I was hitting 221+ with the electrics, I now run at 194, and after idling for five or so minutes after a hard pull in low range up a very steep hill, it hit a high of 199. The ac stayed cold the whole time and we were comfortable. So, I'm going to call this done for me. I don't notice any difference in power between the electric fans and the modded blue hub roaring away. Then again, with 35s and stock gears at 5000'+ elevation, it's pretty damn lethargic anyway. I will say, though- the roar of the fan is very comforting, and man... it moves a LOT of air compared to those electric fans.
^^^^^^ Good work. You did it 'right'.
Charged with 2.8 lbs of refrigerant. No oil added. Only whats inside the new oem denso compressor. Here are my vent temps at around 3pm. Ambient temp is around 103-105.
Vent temps tonight. Ambient temp around 80.
