Author Topic: 1 3/4” AC Drain Hose Skirted Grommet  (Read 592 times)

rbouch8828

  • Full Member
  • Silver
  • ****
  • USA, MA, Framingham
  • Posts: 257
1 3/4” AC Drain Hose Skirted Grommet
« on: February 12, 2020, 20:05:00 »
I have searched the Internet, but cannot find any source for a replacement of the original 1 3/4” AC Drain Hose Grommet that goes through the passenger side floor in the front right corner.

Has anyone found a source for these?

Best,
Roland

WRe

  • Full Member
  • Gold
  • *****
  • Germany, Hessen, Seeheim-Jugenheim
  • Posts: 703
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #1 on: February 13, 2020, 08:47:23 »
Hi,
I assume you are looking for this grommet, see att. picture.
I couldn't find any part number or other details, sorry.
I would look for a "universal" grommet in a hardware store. What's the size of the hole and hose?
...WRe

doitwright

  • Full Member
  • Silver
  • ****
  • USA, IL, Willowbrook
  • Posts: 342
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #2 on: February 13, 2020, 10:07:21 »
None of the components used in the dealer installed AC systems have Mercedes part numbers. The units were manufactured in Texas.
Frank Koronkiewicz
Willowbrook, Illinois

1970 280SL Originally Light Ivory - Now Anthracite Gray Metallic

Pawel66

  • Full Member
  • Platinum
  • ******
  • Poland, Mazowieckie, Konstancin-Jeziorna
  • Posts: 2191
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #3 on: February 13, 2020, 10:54:29 »
I see several sections of drawings and parts lists for Jork and for Frigiking with Mercedes part numbers in the EPC... Maybe these are different types than those from the US.

I could not find the grommet you asked for though... Found the hose that goes through it, but not the grommet itself.
Pawel

280SL 1970 automatic 180G Silver
W128 220SE
W121 190SL
G-class

rbouch8828

  • Full Member
  • Silver
  • ****
  • USA, MA, Framingham
  • Posts: 257
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #4 on: February 13, 2020, 12:07:30 »
Hi,
I assume you are looking for this grommet, see att. picture.
I couldn't find any part number or other details, sorry.
I would look for a "universal" grommet in a hardware store. What's the size of the hole and hose?


...WRe

The hole is 1 3/4”. There isn’t a dimension given in our manual for the hose. I’d like to find that out too if someone has that info.

450sl

  • Full Member
  • Silver
  • ****
  • Netherlands, Gelderland, zelhem
  • Posts: 397
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #5 on: February 13, 2020, 17:07:17 »
I used a  1/2'' hose

rbouch8828

  • Full Member
  • Silver
  • ****
  • USA, MA, Framingham
  • Posts: 257
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #6 on: February 13, 2020, 18:46:17 »
I used a  1/2'' hose

Was that a 1/2” ID or OD?

If it is 1/2” OD, then the hole they made at 1 3/4” in the floor seems pretty excessive.

Best,
Roland

450sl

  • Full Member
  • Silver
  • ****
  • Netherlands, Gelderland, zelhem
  • Posts: 397
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #7 on: February 13, 2020, 21:41:01 »
OD but with a thin wall. I used a small  universal grommet to keep as close as I could to position the hose out of the way as far as possibly.

Benz Dr.

  • Vendor
  • Platinum
  • ******
  • Canada, ON, Port Lambton
  • Posts: 5941
  • Benz Dr.
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #8 on: February 13, 2020, 23:43:14 »
Keep in mind that MB has never made their own AC units. They used York, GM, Nippendenso, and maybe others so they made their builds adapt to the AC pump.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

rbouch8828

  • Full Member
  • Silver
  • ****
  • USA, MA, Framingham
  • Posts: 257
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #9 on: February 14, 2020, 01:04:27 »
Keep in mind that MB has never made their own AC units. They used York, GM, Nippendenso, and maybe others so they made their builds adapt to the AC pump.

Hi Dr Benz,

We are only discussing the evaporator drain hose (Frigiking) grommet in this discussion. I’m trying to find out where I might be able to get a replacement for the 1 3/4” “Skirted Grommet” that goes through the floor in the front right corner of the passenger foot well. It is where the drain hose for the output of condensation from the Frigiking evaporator goes to the street.
I’d also like to know the correct size for the drain hose, ID and OD.

Best,
Roland

I’m trying to find

Benz Dr.

  • Vendor
  • Platinum
  • ******
  • Canada, ON, Port Lambton
  • Posts: 5941
  • Benz Dr.
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #10 on: February 14, 2020, 04:06:03 »
Hi Dr Benz,

We are only discussing the evaporator drain hose (Frigiking) grommet in this discussion. I’m trying to find out where I might be able to get a replacement for the 1 3/4” “Skirted Grommet” that goes through the floor in the front right corner of the passenger foot well. It is where the drain hose for the output of condensation from the Frigiking evaporator goes to the street.
I’d also like to know the correct size for the drain hose, ID and OD.

Best,
Roland

I’m trying to find

I know that. Most of the early cars used York compressors and were dealer installed. Most of those installs were done in NA so I would be looking for something from other NA cars built during the same time period.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

Pawel66

  • Full Member
  • Platinum
  • ******
  • Poland, Mazowieckie, Konstancin-Jeziorna
  • Posts: 2191
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #11 on: February 14, 2020, 07:03:51 »
For what it is worth, just to make this thread complete, this is the MB part number for this drain hose and SA codes:

A 113 835 06 97 | HOSE

55706   FRIGIKING AIR CONDITIONER
55706/08   U.S.AND CANADIAN VERSION

It is NLA, but if you try, they may offer replacement.
Pawel

280SL 1970 automatic 180G Silver
W128 220SE
W121 190SL
G-class


doitwright

  • Full Member
  • Silver
  • ****
  • USA, IL, Willowbrook
  • Posts: 342
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #13 on: February 14, 2020, 07:59:33 »
Solution is simple.

Measure evaporator core drain hose attachment.

Select appropriate size hose.

Measure hose OD

Find appropriate grommet

Drill appropriate hole in floor.
Frank Koronkiewicz
Willowbrook, Illinois

1970 280SL Originally Light Ivory - Now Anthracite Gray Metallic

rbouch8828

  • Full Member
  • Silver
  • ****
  • USA, MA, Framingham
  • Posts: 257
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #14 on: February 14, 2020, 13:49:34 »
Solution is simple.

Measure evaporator core drain hose attachment.

Select appropriate size hose.

Measure hose OD

Find appropriate grommet

Drill appropriate hole in floor.

I have been unable to find a “Skirted” Grommet. There are plenty of 1 3/4” grommets, but I can’t find any “Skirted” 1 3/4” grommets.

Best,
Roland

WRe

  • Full Member
  • Gold
  • *****
  • Germany, Hessen, Seeheim-Jugenheim
  • Posts: 703
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #15 on: February 14, 2020, 14:37:54 »
Hi,
Sorry but I don't know what a "skirted" grommet is, maybe like this: https://www.oldtimerbedarf.de/gummi_5 ?
...WRe

rbouch8828

  • Full Member
  • Silver
  • ****
  • USA, MA, Framingham
  • Posts: 257
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #16 on: February 14, 2020, 15:01:58 »
Hi,
Sorry but I don't know what a "skirted" grommet is, maybe like this: https://www.oldtimerbedarf.de/gummi_5 ?
...WRe

No, it has a long extension below the opening at the top, like a “skirt”. So, it sits in the hole and looks like a normal grommet from the outside, but it is like a tunnel continuing the opening hole down for a specified length.

In the case of the drain hose, it protects the drain hose from chafing against the chassis metal as it passes through the Skirted grommet on the way to below the chassis for discharge of the condensation water.
« Last Edit: February 14, 2020, 15:11:03 by rbouch8828 »

450sl

  • Full Member
  • Silver
  • ****
  • Netherlands, Gelderland, zelhem
  • Posts: 397
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #17 on: February 14, 2020, 15:06:31 »
kind of like the waterdrain grommet used in the trunk of   the W107

Tyler S.

  • Full Member
  • Platinum
  • ******
  • USA, CA, Encinitas
  • Posts: 1526
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #18 on: February 14, 2020, 15:16:00 »
A similar “skirted” drain grommet is used in the soft top compartment. Not sure on the size though.
1968 (67) 250sl. 4 speed manual. DB180 Silver
2019 E450 Wagon. Majestic Blue
1936 Ford PU Flathead V8. Creme on tan interior.
1989 Volkswagen T3 Westfailia Campmobile. Dove Grey (blue)

rbouch8828

  • Full Member
  • Silver
  • ****
  • USA, MA, Framingham
  • Posts: 257
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #19 on: February 14, 2020, 15:24:21 »
A similar “skirted” drain grommet is used in the soft top compartment. Not sure on the size though.

Wow! That one has a really long skirt!

The one for the drain hose is much shorter.

Do you have any source info for that one?

Best,
Roland

Tyler S.

  • Full Member
  • Platinum
  • ******
  • USA, CA, Encinitas
  • Posts: 1526
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #20 on: February 14, 2020, 15:33:56 »
Yes its long. It passes through the inner fender well on its way to the rocker panel. It is part number 1137790078. The photo below is from elsewhere on this site. My hardtop is installed so I cant get a diameter measurement.
The usual vendors have listings. Google the part number for options.
Here is one listing.

https://www.authenticclassics.com/Top-Case-Drain-Tube-Mercedes-230SL-250SL-280SL-p/auth-006296.htm
1968 (67) 250sl. 4 speed manual. DB180 Silver
2019 E450 Wagon. Majestic Blue
1936 Ford PU Flathead V8. Creme on tan interior.
1989 Volkswagen T3 Westfailia Campmobile. Dove Grey (blue)

WRe

  • Full Member
  • Gold
  • *****
  • Germany, Hessen, Seeheim-Jugenheim
  • Posts: 703
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #21 on: February 14, 2020, 17:26:03 »
Hi,
Ok, I understand a "sleeved" grommet but it will be hard to find it with 1 3/4" size.
I don't understand why it must have a skirt/sleeve because the drain hose is a skirt/sleeve itself. The hose needs only a protection for the metal hole means a simple grommet.
...WRe
« Last Edit: February 14, 2020, 17:36:15 by WRe »

rbouch8828

  • Full Member
  • Silver
  • ****
  • USA, MA, Framingham
  • Posts: 257
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #22 on: February 14, 2020, 17:47:27 »
Hi,
Ok, I understand a "sleeved" grommet but it will be hard to find it with 1 3/4" size.
I don't understand why it must have a skirt/sleeve because the drain hose is a skirt/sleeve itself. The hose needs only a protection for the metal hole means a simple grommet.
...WRe

I am just trying to replicate what was there originally. The Skirted grommet neatly dresses the edge of the carpet where it is cut for the hole to pass the drain hose.

Best,
Roland

Shvegel

  • Full Member
  • Platinum
  • ******
  • USA, OH, Cleveland Heights
  • Posts: 2253
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #23 on: February 20, 2020, 15:32:22 »
According to the install manual in our own technical manual the hole should be 1-3/8” not 1-3/4”. (I am in the process of drilling mine right now)  If the hole is 1-3/8” this is the grommet for it.  MB# 113 997 00 81

doitwright

  • Full Member
  • Silver
  • ****
  • USA, IL, Willowbrook
  • Posts: 342
Re: 1 3/4” AC Drain Hose Skirted Grommet
« Reply #24 on: February 20, 2020, 17:28:03 »
The photo looks similar to the firewall grommet for the heater pipes.
Frank Koronkiewicz
Willowbrook, Illinois

1970 280SL Originally Light Ivory - Now Anthracite Gray Metallic