Post by: Fierofool on April 21, 2021, 11:49:07 am
The 4.9 Formula will also be available if anyone wants to give a try at diagnostics.
Post by: scottb on April 21, 2021, 07:52:22 pm
Post by: GTRS Fiero on April 21, 2021, 09:29:27 pm
Anyone interested in hanging out or tinkering with our toys, come on over. About 10 would be good.
10 people, or 10am?
Post by: montegut on April 22, 2021, 09:04:23 am
Post by: Fierofool on April 22, 2021, 09:07:28 am
Anyone interested in hanging out or tinkering with our toys, come on over. About 10 would be good.
10 people, or 10am?
Both.
Wish I could be there. Hope everyone realizes how great it is to be able to get together and work on your cars like this. Have a great time!
Come over and spend the summer with your daughter.
Post by: scottb on April 22, 2021, 06:31:43 pm
Post by: GTRS Fiero on April 22, 2021, 06:34:16 pm
Wish I could be there. Hope everyone realizes how great it is to be able to get together and work on your cars like this. Have a great time!
I agree.
Post by: GTRS Fiero on April 22, 2021, 06:35:41 pm
Post by: scottb on April 22, 2021, 07:31:16 pm
Doing evaporator and condenser, also?
Not if I can help it
Post by: Fierofool on April 22, 2021, 09:33:14 pm
Anyone who might be coming and has a scanner that will read a Fiero OBD 1, please bring it with you. Not the paper clip kind, but the electronic digital kind.
Post by: GTRS Fiero on April 22, 2021, 09:38:10 pm
I was going off the word "complete".
Post by: Fierofool on April 23, 2021, 08:08:27 am
New Fiero owner and member Doug said he will join us.
Post by: scottb on April 23, 2021, 08:30:16 am
Post by: TopNotch on April 23, 2021, 08:46:47 am
Post by: Fierofool on April 23, 2021, 01:20:35 pm
Does he have the address?
I plan to meet him in Buford, but I can give him the address, too.
Post by: scottb on April 23, 2021, 03:14:44 pm
I need to let everyone know that the shop fridge is empty so yall need to bring their own drinks, sorry about that
Post by: GTRS Fiero on April 23, 2021, 05:57:14 pm
Post by: GTRS Fiero on April 23, 2021, 05:57:51 pm
New Fiero owner and member Doug said he will join us.
Excellent!
Post by: GTRS Fiero on April 23, 2021, 06:08:41 pm
Larry needs to see this so he understands what it will take to fix his car
Does Larry's AC not work?
Post by: Wreck It Ralph on April 23, 2021, 10:32:37 pm
Weather forecast shows sky juice.
100% chance of liquid sunshine ☀️ 🌧
Post by: scottb on April 23, 2021, 10:33:55 pm
Weather forecast shows sky juice.
100% chance of liquid sunshine ☀️ 🌧
It's OK, I gots a roof
Post by: Wreck It Ralph on April 23, 2021, 10:53:52 pm
Post by: GTRS Fiero on April 23, 2021, 10:59:24 pm
Post by: The Art Doctor on April 23, 2021, 11:12:43 pm
Post by: GTRS Fiero on April 24, 2021, 07:39:47 am
Post by: GTRS Fiero on April 24, 2021, 07:38:10 pm
Post by: Fierofool on April 24, 2021, 08:41:56 pm
Post by: GTRS Fiero on April 24, 2021, 08:45:38 pm
Post by: GTRS Fiero on April 29, 2021, 06:37:02 pm
Post by: Fierofool on April 29, 2021, 06:47:25 pm
Post by: GTRS Fiero on April 29, 2021, 06:49:59 pm
Post by: Fierofool on April 29, 2021, 10:08:16 pm
The pressure switches are unplugged amd visible. Next is to remove the single bolt in the center of the refrigerant tube manifold and pull the refrigerant tubes away from the compressor.
Once the compressor was out, the receiver dryer was removed and the refrigerant lines back flushed with AC System Flush. This system uses a siphoning container and compressed air. It's best to flush from the front to the rear with a container underneath to catch the oil and flush. Flushing from the rear will fill your front compartment with some messy stuff.
Once the system is flushed, the new receiver dryer and orfice metering tube is installed.
Post by: GTRS Fiero on April 29, 2021, 10:14:24 pm
Post by: Fierofool on April 29, 2021, 10:26:38 pm
Work the compressor back into position and install its mounting bolts. This was found to be a chore with 1 specific bolt. Chamfering the end of the threads was of great help in getting the bolt started into the compressor dog ear.
Once all the mounting bolts are in place, the pressure safety switches can be connected and the refrigerant tube manifold can be bolted back to the compressor. All connections that were separated received new O-rings or appropriate seals, lubricated with Nylog Blue AC lubricant and seal.
Once everything is bolted in place and the tension is set on the compressor belt, the refrigerant recovery/recharge equipment can begin to evacuate the system to remove all moisture and to check for leaks. Once the system is determined to have no leaks you can start to charge the system.
Post by: Fierofool on April 29, 2021, 10:29:07 pm
Post by: GTRS Fiero on April 29, 2021, 10:30:41 pm
Post by: Raydar on April 30, 2021, 07:41:10 am
That bulbous thing is a muffler of sorts. It works similarly to the pulsator on our fuel pumps. It absorbs and softens the compressor pulses. It's nothing more than a hollow canister on the output side of the compressor.
I had to have my lines re-welded when I changed the configuration of a motor mount.
The guy who did the work said that the muffler was not required. (It was seriously in the way.)
My A/C works fine without it, but the compressor seems a bit more noisy. Hope it's not hammering the innards to pieces.
Post by: GTRS Fiero on April 30, 2021, 07:43:12 am
Do newer cars have this?
Post by: Raydar on April 30, 2021, 07:49:57 am
Which washers did you use when you hooked the refrigerant lines back to the compressor?
Post by: Fierofool on April 30, 2021, 07:54:28 am
Post by: GTRS Fiero on April 30, 2021, 07:55:06 am
Post by: Fierofool on April 30, 2021, 09:36:42 am
Charlie,
Which washers did you use when you hooked the refrigerant lines back to the compressor?
I purchased a kit that had oil, expansion tube, receiver dryer, and a good selection of seals. The seals seemed to be for the compressor because the green O-rings were generally of a smaller gauge than what was needed on the expansion tube and receiver dryer connections. Fortunately, Brown's Fiero Service Center had what was needed.
You can see on the new compressor that it doesn't use the standard O-rings. One of the surfaces is flat, so it uses the flat metal washer with the rubber seal insert. There were a couple of seals in the kit with various inner diameters. We selected the one that properly fit over the refrigerant tube.
The other port is recessed. The kit also came with a selection of seals for this port. There were several thicknesses but the one that fit into that port was about 3/16 thick. Just enough to slightly stand up above the shoulder of the port. They appeared to be aluminum rings with the rubber center seal.
Post by: Raydar on April 30, 2021, 12:45:53 pm
There were also aluminum bushings/inserts of two different lengths. I had to drive one of them (I forget which one) into one of my refrigerant lines. The first time I did the washers, I didn't realize that the bushing was needed, and over time, the movement of the refrigerant tried to suck the rubber seal out of the center of the washer, into the gap.
Post by: Fierofool on April 30, 2021, 02:49:12 pm
Post by: Fierofool on April 30, 2021, 03:59:35 pm
Post by: Raydar on April 30, 2021, 05:54:08 pm