What receiver-dryer should 2638 have? Also, AC question.

[DMC-81]

Thanks guys. It looks like there is a heavy gauge spring in the hole. I agree to cover it. Otherwise, if its vertically oriented, it would fill up with water ( in theory). I'll cover the top with a round piece of clear tape.

[DMC5180]

Yes, it's spring loaded and as you mentioned , will stand vertical when installed. On the Hub hose configuration it sits in a downward position. Any potential water would drain out. The one thing I'm not sure about is if the RV is installed with an O-ring, I never unscrewed it from the Hub.


Dennis

[Morpheus]

Dana, did you ever get that new accumulator to work?

[DMC-81]

Dana, did you ever get that new accumulator to work?

I'm still working on it, but I found a shop that makes custom A/C aluminum tubes, and knew exactly what I needed. I just need to spec it out and send it to them. The owner said it will probably be $15 or $20. So, all told, I can make a new accumulator that is close to the early version for around $50.

The unit that I linked to above has a body that is shorter than the original, due to the bottom fitting being included in the 9" length of the original. That makes sense, because otherwise with a 9" body and a fitting, it would be too long. I can't think of a reason for a shorter body to be a problem, unless the volume of the accumulator is critical. Other thoughts?

I'll buy one for comparison. The only downside to this set up that I can see is an additional joint that might leak. To me, it's worth it to maintain the early hose that is tucked along the frame.

When I get the time to do this, it would be great if someone with CAD skills can partner with me to create a professional specification. Then, after I verify that it works, the shop can hang on to the specs and make one for whoever else wants one.

I also emailed John Hervey to pitch that product solution to revive the early accumulator, since he has the early hose. He hasn't responded yet, but when I talked to him a couple weeks ago he said he doesn't get many inquiries on the early accumulator.

[BABIS]

..I realized I have a NOS a/c accumulator on the shelf which I thought to install after my a/c box restoration, do you think is worth to use it after 35 years of storage? Houston is still selling them...

[DMC5180]

As long as the sealed protection Caps are in place it should be fine to use.


Dennis

[Bitsyncmaster]

..I realized I have a NOS a/c accumulator on the shelf which I thought to install after my a/c box restoration, do you think is worth to use it after 35 years of storage? Houston is still selling them...

That is a good question. First how good the sealing caps worked for 35 years. Second is the dryer pellets were made for R12 so will it work for R134?

[DMC-81]

I'm back on track with my A/C refurb, and I have a question about the late style accumulator, specifically, what is the original orientation of the low side fitting/hose and low pressure switch fitting and is that desirable to avoid interference in the wheelwell?

Here are the pictures from the four seasons catalog of the 2 units discussed above:

The Corvette unit (33177)
Attachment 52815

The Olds Firenza unit (33186)
Attachment 52816

Also, this unit looks like some OEM pictures I've seen:
(This is also an Olds Firenza unit)
image.jpg

If anyone could post a picture of the OEM late style accumulator installed showing where the low side hose is in relation to the frame/wheelwell that would be helpful for me to decide whether I'll stick with the early style or convert to the late style.

Thanks!

[DMC-81]

I'm back on track with my A/C refurb, and I have a question about the late style accumulator, specifically, what is the original orientation of the low side fitting/hose and low pressure switch fitting and is that desirable to avoid interference in the wheelwell?

Here are the pictures from the four seasons catalog of the 2 units discussed above:

The Corvette unit (33177)
image.jpg

The Olds Firenza unit (33186)
image.jpg

Also, this unit looks like some OEM pictures I've seen:
(This is also an Olds Firenza unit)
image.jpg

If anyone could post a picture of the OEM late style accumulator installed showing where the low side hose is in relation to the frame/wheelwell that would be helpful for me to decide whether I'll stick with the early style or convert to the late style.

Thanks!

Apologies. The pictures didn't upload last time. I've fixed them. Also, I saw a picture of the late style OEM accumulator installed, and it seems to route the hose under the accumulator, close to the frame and tucked behind the shock tower. For some reason I thought that that version allowed the low side hose to protrude into the wheel well a lot more. That's good.

That makes me more in favor of switching to the late version. If somebody has a picture of the Corvette accumulator installed, that would be good to see, especially on what port you installed your low pressure switch. I'm not crazy about how it's stuck out in the well on my early version.

(My goal here in this exercise is to tuck the hose and the switch out of the wheel well as much as possible.)

Thanks.