Jim Lane

Friday.
Oh yes,
I have to replace my condenser, going to get it tomorrow, going with the stock replacement, hope it is the right one,
I am quickly loosing faith in mankind, or at least the ones at the auto parts.


And yet another update, but still no air conditioning.
If this did not happen to me, I would not believe it could happen.

So on Friday the counter person at OReilly's told me he found me a condenser and it would be here on Saturday at noon, he will call me when it is here.

Saturday by noon and I have not heard from him so around 1:00 PM, I called and now nobody knows anything about my condenser.

So I came to the store and after some checking it looks like nobody ever ordered it because I did not come and pay for it.

On Friday he told me he would get it here and I did not have to pay first because of all the problems with the compressor, guess he was trying to be nice.

So a new person orders the condenser out of their Hub in Moreno Valley, about an hour away, it will be here on Monday around noon, he also ordered me another receiver/drier because the last one had the caps off when I got it and could be saturated already, no problem, again it was ordered and I did not have to pay any money until I have my parts.

I am getting angry but I am still being nice, I need my air conditioning, it is 100* again today.

So Monday comes and I have it planned that I will meet with my son for breakfast and then I will pick up the condenser and go home and install it, everything should be done in a few hours so I wait....

Noon and I have not heard from anyone so I give them some time, finally at 2:00 PM I call and the guy says I have your new receiver /drier but we have a problem, the delivery man called and said there might be something wrong with my condenser,

I said whaat?

He said it looks like someone tried to stick their foot through it, it is smashed up.
A company delivery man, with a company delivery truck from the company distribution center.

How did it get damaged,
so after a whole bunch of geez we are sure sorry's another manager here at my store says I will find you one today, were really sorry.

So he took all of my info again and I told him:
NON-Intercooled, the core is 33"X12" real simple, they have one in El Monte and our driver is on his way, I call you when it is ready.

Finally...

So at 5:00 PM. he called and said it looks like someone ordered the wrong part.
I will have one for you on Wednesday.

Yea, we will see.

Jim

jimbo486

Jim, is the i/c condenser different from the non i/c condenser?? I'm trying to recall... with this '91.5 parts truck I have... When I converted my front end to the i/c core support, etc., I believe I swapped condensers as well. That means, I just might have a non-i/c condenser. I'm off work tomorrow. I'll look around my collection of parts and give you a call.

Jim Lane

Jimbo,
According to the parts book, the non-intercooled and the intercooled condensers are different, how much, I do not know but I know the non-IC core is 12"x33"

I do not know how a person can survive in one of these trucks without air conditioning, maybe it is my exhaust or ??
I know my floorboard gets excessivly hot after I have been driving for awhile even with all of my extra insulation, it can get uncomfortably hot to the touch with your bare hands.
It gets over 100* easily and opening the vents won't help cool it down, opening a window causes a whirlwind through my cab, the other day I came out from the mall and it was 135* in the cab, if I open my rear slider it draws in the super hot air from inside the dark gray Leer shell.

I know I have become more intolerant to heat but this is just crazy, when the AC is working, this truck is very comfortable even in the hottest weather.

Any idea how many BTU this system is rated at?
I would guess about 2 tons?
The old Chrysler Air Temp systems were legendary for being the coldest.

Jim

Angry Johnny

Since the I/C condenser bolts to the intercooler itself that would make me think they are different.

As far as the rating goes, I don't know. I do remember Chrysler telling us when the then new LH cars came out that the A/C was enough to cool a 1500 sq. ft. house.

Either way you take something close to that and use it to cool a space as small as a standard cab truck and you have an ice box.

Angry Johnny

And Rock Auto lists the I/C and non I/C condensers under different part numbers.

jbawden

I would hit the reset button and try a whole new supplier or maybe an online approach. These situations suck you in and you end up becoming part of the train wreck and burning up all the time it would have taken to order good quality parts from Rock Auto or similar, punch out now.

SMOKE TRAIL

I just got done redoing the AC on my truck. And I can say the condensers on the IC and non-IC are different size, and how they mount. I ordered my whole kit from rock auto (AC comp, h block, drier, and condenser) Everything was in good shape, except the condenser had some bent fins on the edges from the straps that were on it but otherwise it was good shape plus my drier was sealed tight as well as the compressor and h block. once you get past the outrageous shipping amount the parts and prices aren't bad.
Joel

Angry Johnny

I bought my condenser from Rock Auto as well along with gaskets for the whole system. My GF works at Car Quest so I got the compressor, drier, h valve and evaporator from them. I had a hard time trying to find a condenser local. Only one place said they could get it and they wanted $60 more than the one from RA, even with my wholesale discount. It would have probably been wrong too.

jimbo486

Jim,

I have a non intercooled condenser in my parts collection. I sent you a text message. Don't know which message you'll see first.

Now that I've looked at the non intercooled condenser, they are certainly different in the way they mount and the position of the connection flange.

Jim Lane

Anyone happen to know the part number of the lower hose connection and compressor mount used on the intercooled engine?

Or maybe know the whereabouts of one,
I have my air conditioner working but I am defiantly satisfied with this compressor.

Jimbo,
Any chance you have a link to your thread when you upgraded your compressor, I was looking for it but had no luck

Thanks Jim


More to come..

thrashingcows

Here's the thread I started when I did mine on my 89 motor....never completely finished it...but had everything mounted on the motor.

https://www.dieseltruckresource.com/...highlight=C171

Jim Lane

Update... Update...

Sorry,
kinda got lost on this one, just an update, they finally did get me a new condenser all bubble wrapped and secured to a big piece of cardboard, I checked it out before I left the store and it looks in perfect condition with only a few bent fins on the edge, also this in a new Parallel Flow style condenser so finally I put my truck back together. so long story short, I got the truck all reassembled, fresh oil charge with a shot of UV dye, connected up my vacuum pump and pulled it down, took it down to 29.9 for an hour, locked it off and checked for any leaks, after I was sure it was OK I left it on the pump for another 2 hours, finished with the grille and had In-N-Out.

Then I charged the system, this air is working perfect, in the 20's driving around town and freezing cold on the freeway, even dialing the thermostatic control the ride could still get very cold.

I did notice an intermittent shudder and squeal from the compressor I had questioned but I passed it off as maybe coming from the drive belt so I took it to OReillys and documented it with the manager and told him I would probably be back.

But I did I survived the remainder of our hot summer in a nice cool truck.

Now the ugly hits, several weeks ago we had a crazy cold front here where it got down below freezing and I did not have to use my air conditioner and I actually had to use the heater to keep warm, and like all good things it passed, now it is back up in the mid 90's in January and I need my air conditioner.

So I switched it on and it just did not seem as cold as it was so I went to my appointments and on the way home I quickly found out there was no air conditioning even though the compressor would still engage, I lost my charge.

So I pull over and look for a leak on the side of the road, there was nothing obvious, even with the UV dye I had put in the oil till I noticed the oily mess leaking from the front of the AC compressor, it looks like the shaft seal had blown on the compressor.

So I need to try and find the lower water inlet for the 1991.5-^ intercooled engine so I can convert to an SD-709

I talked to the manager at Oreillys and he will buy back my C-171 and get me a NEW SD-709 with warranty and it will cost me $20.00.
But first I need to find a pump bracket.

What do you guys think, Should have paid attention to the shudder?

This is my life, work is crazy right now and I do not have time for my truck to be down.

Does anyone know the
Cummins PN for the:
Lower water inlet?
Bolts?

Or know where I might find one?

Jim

BC847

My thoughts are that the evaporator was flooded and as a result, liquid refrigerant made its way back to the compressor and slugged it (the shudder you felt).

If I'm not mistaken, you've altered your metering device's temperature sensor in the suction line haven't you? One needs to be very careful doing such, ill-adjusted/placed, it can result in the metering device over-feeding the evaporator . . .. and flooding back to the compressor.

Jim Lane

I have a freon filled thermostatic switch to set my low cutoff, the chatter/squeal was cyclic with the rotation and finally cleared up, guess it always could have although it ran fine all summer used daily, the issue is I lost my front seal and most of my R-12.
All summer there were no unusual sounds or vibrations.
I think it was another poor quality remanufactured compressor, the one before this one was locked up with no oil from the factory.
Jim

Alec

I am pretty sure that 91.5-02 brackets are the same.