Author Topic: Vacuum: What did I break?  (Read 281 times)

sethkestenbaum

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Vacuum: What did I break?
« on: 12 January 2019, 01:17 PM »
OK,  I know I have some vacuum leaks so I decided, even though I have never worked on a vacuum system, to explore for leaks.  When I went to remove this part, CRACK!  I now have a few pieces of the hose and a few pieces of the part.  What is the name of this part and what does it do?  I am assuming it steps down the vacuum pressure, serves as a filter, or does something like that.  I'm kind of surprised that the vacuum line cracked.   

Thanks,
 Seth
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1969 VW Bug Convertible
1980 300 SD Turbo Diesel getting fixed up
1980 300 SD Turbo Diesel rusty parts donor car
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daantjie

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Re: Vacuum: What did I break?
« Reply #1 on: 12 January 2019, 09:11 PM »
Looks like a check (one way) valve to me. Looks similar to the one in the vacuum door lock circuit. They are readily available.  Maybe one of the diesel boys will weigh in.
Daniel
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ptashek

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Re: Vacuum: What did I break?
« Reply #2 on: 13 January 2019, 07:22 AM »
Definitely a check valve. There's a good few of these under the hood. Part number should be on the side edge. They're usually quite affordable at MB.
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Harv

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Re: Vacuum: What did I break?
« Reply #3 on: 13 January 2019, 11:34 AM »
Go ahead and buy the entire line. You can't glue that back together. It is the entire piece that runs from the top of the vacuum pump all the way to the brake booster.

Part number 116-430-40-29
1980 300SD
1983 240D
2000 E55 AMG

sethkestenbaum

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Re: Vacuum: What did I break?
« Reply #4 on: 14 January 2019, 03:34 PM »
There is no part number and MB Classic was unable to verify the booster line/check valve... although they are still doing research. Attached are some additional photos.

It looks like the smaller vacuum hose is either clear/white but has yellowed with age or was a light yellow.

Parts Drawing: seems to indicate that i broke part 208 (part 116-430-3229) or 214p.  Part 208 runs from the vacuum pump to the brake booster and has three rings in the drawing (I am assuming the grommet near the vacuum pump and two in-line check valves are the rings.  It also seems to have the correct number of "t"s branching off.
Photo1 shows the hose going from the vacuum pump.  Before it gets to the first check valve, it has two “T”s that branch off.
Photo2 shows the main hose between the two check valves.  You can see the black hose that “T”s off from here.  The end of this black hose is used to hold the part I broke.  You can see some of the broken part of still in the hose.  The clear/white smaller hose connected to the broken part at a 90 degree angle via the red connecting piece.
Photo3 shows the broken part – whose bottom part is stuck in the black hose that branches off.

Any insights?  Thoughts?
Seth Kestenbaum
oldcarroadtrip.com
1929 Model A Ford Phaeton
1969 VW Bug Convertible
1980 300 SD Turbo Diesel getting fixed up
1980 300 SD Turbo Diesel rusty parts donor car
2005 BMW 325 CI

Harv

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Re: Vacuum: What did I break?
« Reply #5 on: 14 January 2019, 05:48 PM »
Seth, did you not read my post? You have to buy the whole line. They don't sell those separate and even if they did you can't get the broke piece out. It is heat shrunk in there. It is like a $120 for a new one.

Here, I even found my Classic Center invoice for the part.

1980 300SD
1983 240D
2000 E55 AMG

sethkestenbaum

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Re: Vacuum: What did I break?
« Reply #6 on: 15 January 2019, 06:04 AM »
Harv,

Yes, I understand that the whole line needs to be replaced and have my fingers crossed that can find the right replacement.  The issues I am having is that there is debate on the part number.  If there is any chance you could take a few photos of the one you purchased, that could help narrow things down.  Classic Center tells me it MIGHT be part 116-430-3229 (not 116-430-4029) but they are uncertain as the photos of the part I sent them didn't seem to be like the illustration they have and they don't have this part in stock to check. Pelican and a few other suppliers are also uncertain which part is the correct one.  I guess I am hoping for a visual match before ordering the part.

Thanks,
Seth
Seth Kestenbaum
oldcarroadtrip.com
1929 Model A Ford Phaeton
1969 VW Bug Convertible
1980 300 SD Turbo Diesel getting fixed up
1980 300 SD Turbo Diesel rusty parts donor car
2005 BMW 325 CI

UTn_boy

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Re: Vacuum: What did I break?
« Reply #7 on: 15 January 2019, 10:05 AM »
I don't know why Classic, Pelican, and other suppliers don't take heed to the footnotes for this particular part. 

For the 116.120 chassis, there are two different lines that were used, as has already been discovered.  The two part numbers are 116-430-32-29 and 116-420-40-29.
Below is an extremely long list of chassis number breaks in which each of the two aforementioned part numbers are relative to.  Take note of the last six digits of your VIN and apply it to the footnotes below.  Only then will you know which part number you need to order.  Also, bear in mind that the replacement may not look like your original, and some of the ports may have to be blanked off.  Mercedes ended up making one vacuum line that would fit many models rather than making 10 different lines.  So don't get hung up on the replacement not looking like the original.  It's just how the replacements are. 

For part number 116-430-32-29, this is used ONLY UP TO chassis   014083 FEDERAL, EXCEPT FOR: 009961, 012645, 012646, 013109, 013154- 013156, 013283, 013284, 013905, 013908, 013909, 013911, 013912, 013916, 013918, 013919, 013921- 013923, 013929, 013934- 013936, 013938, 013939, 013941- 013943, 013947, 013950, 013951, 013956, 013957, 013959- 013961, 013967, 013969, 013970, 013973, 013975, 013976, 013978, 013979, 013981, 013983- 013987, 013989, 013993, 013995, 013996, 013998, 013999, 014002, 014010- 014012, 014018, 014019, 014021, 014023, 014025- 014033, 014035, 014038- 014040, 014044, 014046, 014048- 014050, 014055, 014056, 014058, 014059, 014061, 014065, 014066, 014070, 014072, 014073, 014075- 014081. 014084, CALIFORNIA, EXCEPT FOR: 008232, 013243, 013244, 013498, 013914, 013920, 013924, 013925, 013927, 013928, 013930, 013933, 013937, 013940, 013944, 013946, 013948, 013949, 013952- 013955, 013958, 013962- 013966, 013968, 013971, 013972, 013974, 013977, 013980, 013982, 013988, 013990- 013992, 013994, 013997, 014000, 014001, 014003- 014007, 014009, 014013- 014017, 014020, 014022, 014024, 014034, 014036, 014037, 014041- 014043, 014045, 014047, 014051- 014054, 014057, 014060, 014062- 014064, 014067, 014069, 014071, 014074, 014082.


For part number 116-430-40-29, this part is used ONLY FROM chassis 120 014084 FEDERAL, ALSO INSTALLED ON: 009961, 012645, 012646, 013109, 013154- 013156, 013283, 013284, 013905, 013908, 013909, 013911, 013912, 013916, 013918, 013919, 013921- 013923, 013929, 013934- 013936, 013938, 013939, 013941- 013943, 013947, 013950, 013951, 013956, 013957, 013959- 013961, 013967, 013969, 013970, 013973, 013975, 013976, 013978, 013979, 013981, 013983- 013987, 013989, 013993, 013995, 013996, 013998, 013999, 014002, 014010- 014012, 014018, 014019, 014021, 014023, 014025- 014033, 014035, 014038- 014040, 014044, 014046, 014048- 014050, 014055, 014056, 014058, 014059, 014061, 014065, 014066, 014070, 014072, 014073, 014075- 014081. 014085 CALIFORNIA, ALSO INSTALLED ON: 008232, 013243, 013244, 013498, 013914, 013920, 013924, 013925, 013927, 013928, 013930, 013933, 013937, 013940, 013944, 013946, 013948, 013949, 013952- 013955, 013958, 013962- 013966, 013968, 013971, 013972, 013974, 013977, 013980, 013982, 013988, 013990- 013992, 013994, 013997, 014000, 014001, 014003- 014007, 014009, 014013- 014017, 014020, 014022, 014024, 014034, 014036, 014037, 014041- 014043, 014045, 014047, 014051- 014054, 014057, 014060, 014062- 014064, 014067, 014069, 014071, 014074, 014082.

As you can see, the VIN breaks are extreme, but the answer to your question is in the aforementioned.  There is no mystery about it.  There is only one person at the Classic center that is capable of deciphering things like this.  Unfortunately, he'll be retiring soon.  So get good at using books and EPC.  We're going to be left to our own devices sooner rather than later. 
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Diesel 617

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Re: Vacuum: What did I break?
« Reply #8 on: 15 January 2019, 07:25 PM »
DON'T TELL ME HE IS RETIRING! He was fantastic to deal with over the phone. I forget his name we briefly spoke twice, I think it was Charles?

Btw y'all are awesome with these part numbers and detailed explanations.

UTn is what you mentioned all in the EPC?
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sethkestenbaum

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Re: Vacuum: What did I break?
« Reply #9 on: 16 January 2019, 07:10 AM »
I want to reiterate Diesel 617's comments on how awesome it is to have actual 617 experts on this site willing to help out with real answers and explanations.  The parts suppliers are also great but don't always have the insights that the members of this site seem to have.  Based on the information herein, it would seem that Harv's Part number 116-430-40-29 is the correct one.  I'll keep everyone posted. Classic Center was ordering part 116-430-3229 to see if it matched the photos.  If it doesn't (which I am now expecting it not to), I will order up a 116-430-40-29.

Seth

Seth Kestenbaum
oldcarroadtrip.com
1929 Model A Ford Phaeton
1969 VW Bug Convertible
1980 300 SD Turbo Diesel getting fixed up
1980 300 SD Turbo Diesel rusty parts donor car
2005 BMW 325 CI

ptashek

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Re: Vacuum: What did I break?
« Reply #10 on: 16 January 2019, 10:06 AM »

UTn is what you mentioned all in the EPC?

Yes, all that plus a trail of part numbers which replaced the original factory one, if at all. It's really an invaluable resource for anyone buying parts on their own.
1993 "Pearl Blue" W124 280TE
1979 "Icon Gold" W116 450SE (history, resto)
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sethkestenbaum

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Re: Vacuum: What did I break?
« Reply #11 on: 16 January 2019, 11:23 AM »
Classic Center now has the 3229 part in stock.... it is obviously the wrong part for me as it was the less expensive part and the one they ordered first.  So we have the record of what the part looks like on the forum, here is a photo of the part that doesn't work for me.  Classic Center is now ordering the 4029 hose and plans to email me a photo in a day or two.  I'm assuming it will work and will keep everyone posted.
Seth Kestenbaum
oldcarroadtrip.com
1929 Model A Ford Phaeton
1969 VW Bug Convertible
1980 300 SD Turbo Diesel getting fixed up
1980 300 SD Turbo Diesel rusty parts donor car
2005 BMW 325 CI

sethkestenbaum

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Re: Vacuum: What did I break?
« Reply #12 on: 17 January 2019, 02:25 PM »
No surprise... Harv and UTn_boy were right.  Here is a photo of part 116.430.4029.  Please note it has all the "T"s.  Classic Center is shipping it to me and I hope to have it installed next week.  Thanks for all the help everyone.
Seth Kestenbaum
oldcarroadtrip.com
1929 Model A Ford Phaeton
1969 VW Bug Convertible
1980 300 SD Turbo Diesel getting fixed up
1980 300 SD Turbo Diesel rusty parts donor car
2005 BMW 325 CI

Harv

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Re: Vacuum: What did I break?
« Reply #13 on: 18 January 2019, 08:56 AM »
3229 looks like what I bought for my W123. I broke both of those vacuum lines in my 116 and 123 because of how old they were.

Also, when you take off the line to replace it, look down into the check valve and see if it is still together. Mine broke one day out of the blue and clogged up the vacuum pump port. I found this out by hitting the brakes at 70mph and having the pedal be rock hard.
1980 300SD
1983 240D
2000 E55 AMG