Sprinter-Forum    
 

Go Back   Sprinter-Forum > T1N Sprinters > T1N Talk

T1N Talk General Discussions related to T1N Sprinters.


 
Thread Tools Display Modes
Old 10-01-2018, 10:26 PM   #1
Robert Foster
 
Join Date: Nov 2009
Location: Charlottesville, Va.
Posts: 286
Thanks: 81
Thanked 67 Times in 39 Posts
Default Sliding Door Center Roller Arm Questions

The sliding door on my 2005 Sprinter Westfalia has been problematic for awhile. I replaced my center door roller arm not too long ago and then the roller on my lower support arm disintegrated so I needed to replace that and decided to replaced the upper roller arm preemptively at the same time .

I've never completely understood the design of the center roller arm, it's just not well designed or even though I replaced mine with supposedly a Genuine Mercedes part from Europarts it's defective.

The center roller arm doesn't reliably hold the sliding door up over time in the appropriate position aligned with the ridge pattern running along the door and body panels per the Sprinter Door Adjustment instructions that I have.

I try to adjust the door per the steps below but the door just sags back down.

1. place adjustable jack under sliding doors lower edge at rear of door
2. hop inside and loosen center roller arm bolt
3. hop outside and use jack to move door up overshooting ridge pattern (see #1 pic below)
4. hop inside and tighten center roller arm bolt
5. hop outside and take pressure off of jack
6. watch sliding door settle back down below ridge pattern (see #2 pic below)

I removed the center door roller arm to check it our for obvious damage (see pic #3 & #4) but accept for what appear to be some poor manufacturing tolerances I don't see anything egregious.

The other thing I notice which surprises me is that the center roller arm seems damn sloppy in the body rail and does not need to be slid in from the rear end. I can actually insert the rollers in anywhere along the rail, which doesn't seem right to me. (see pic #5) I eyed and measured the rail and it seems very consistently shaped and sized along it's entire length-a little wear here and there but nothing extreme.

What don't I know ? Any help would be great.
Attached Images
File Type: jpg door gap up.jpg (38.2 KB, 91 views)
File Type: jpg door gap down.jpg (40.9 KB, 88 views)
File Type: jpg mechanism plan.jpg (64.9 KB, 89 views)
File Type: jpg mechansim end.jpg (58.8 KB, 86 views)
File Type: jpg rail fit.jpg (48.9 KB, 89 views)
__________________
2005 Sprinter Westfalia ... currently undergoing a complete refitting
Charlottesville Va Home Inspector
Robert Foster is offline   Reply With Quote
The Following User Says Thank You to Robert Foster For This Useful Post:
billintomahawk (10-02-2018)
Old 10-02-2018, 03:24 AM   #2
billintomahawk
'02 2.7 T!N Freightliner
 
Join Date: May 2018
Location: Tomahawk, Wisconsin
Posts: 1,054
Thanks: 1,032
Thanked 411 Times in 289 Posts
Default Re: Sliding Door Center Roller Arm Questions

Robert,
My slider is acting up too.
I am going in for round three.

My current theory is that the center roller mostly guides the door to the latch so it just needs to center.
i guess I'll readjust it after I get the top and bottom right.

Not by the book but the book is a translation, anyway my door won't latch right and I'm mad at it.
It won't stop raining in Wisconsin which does nothing for progress.

Thanks for the pictures of your slider.

bill in tomahawk
__________________
billintomahawk
2002 T1N Freightliner
OM 612 2.7L
Transporter 1 Neu 154HP
2500 140"WB, low top
Tank, the repurposed van
https://www.sprinter-source.com/foru...ad.php?t=76877

Last edited by billintomahawk; 10-02-2018 at 03:26 AM.
billintomahawk is offline   Reply With Quote
Old 10-02-2018, 07:37 AM   #3
Nautamaran
2004 140 SHC U.S. T1N
 
Nautamaran's Avatar
 
Join Date: Jan 2017
Location: Calgary, AB
Posts: 2,661
Thanks: 915
Thanked 1,774 Times in 1,195 Posts
Default Re: Sliding Door Center Roller Arm Questions

It’s a needlessly finicky adjustment... but it is possible to secure the roller in the magic spot where the body lines align and the seam gap is shared evenly at B- and C-pillars. Then you can adjust the striker bar on the C-pillar to catch the door.
Oh, and the top and bottom rollers ard the two front wedges and their pockets.
Patience... in generous amounts.
Nautamaran is offline   Reply With Quote
The Following User Says Thank You to Nautamaran For This Useful Post:
billintomahawk (10-02-2018)
Old 10-05-2018, 05:21 PM   #4
billintomahawk
'02 2.7 T!N Freightliner
 
Join Date: May 2018
Location: Tomahawk, Wisconsin
Posts: 1,054
Thanks: 1,032
Thanked 411 Times in 289 Posts
Default Re: Sliding Door Center Roller Arm Questions

In the sliding door wars, I did the whole adjustment thing but didn't really solve the problem immediately.
In the process I lubed the locking mechanism several times with 10-40 engine oil and with silicone based machine oil(thin).
No immediate change.

Now a week or so later the door seems much happier and is locking up tight on the first slam.

I readjusted the latch/striker bar on the rear pillar(C) to reduce the ridge and the door was happy with that(moved it inward).

Now I wonder if the locking mechanism was sticky due to a lack of lubrication.
And that was a big part of the problem?

bill
__________________
billintomahawk
2002 T1N Freightliner
OM 612 2.7L
Transporter 1 Neu 154HP
2500 140"WB, low top
Tank, the repurposed van
https://www.sprinter-source.com/foru...ad.php?t=76877

Last edited by billintomahawk; 10-05-2018 at 05:25 PM.
billintomahawk is offline   Reply With Quote
Old 10-06-2018, 07:09 AM   #5
Nautamaran
2004 140 SHC U.S. T1N
 
Nautamaran's Avatar
 
Join Date: Jan 2017
Location: Calgary, AB
Posts: 2,661
Thanks: 915
Thanked 1,774 Times in 1,195 Posts
Default Re: Sliding Door Center Roller Arm Questions

Could be? I had sucess squirting lube UP into the door latch and repeatedly opening and closing the door. No slamming required once I had the rear roller extension (stick-out) adjusted to let the edge swing in, and was coordinated with the B-pillar wedge locations to align the forward edge flush with the B-pillar skin.

I do think the compression of the rubber door seal plays a major role, so a 1/16 inch adjustment inwards on the wedges or rear roller can cause the rear edge latch to miss unless the door is slammed. It can slide smoothly latched with minimal inertia if the wedges are moved outward a 1/16” and the rear roller stick-out is reduced a bit by sliding the bolt forward 1/16”

-dave
Nautamaran is offline   Reply With Quote
The Following User Says Thank You to Nautamaran For This Useful Post:
billintomahawk (10-07-2018)
Old 10-06-2018, 02:57 PM   #6
Aqua Puttana
Poly - Thread Finder
 
Aqua Puttana's Avatar
 
Join Date: Apr 2008
Location: The Falls of Niagara, USA
Posts: 25,161
Thanks: 12,957
Thanked 14,213 Times in 9,022 Posts
Default Re: Sliding Door Center Roller Arm Questions

Most all of the latching and unlatching of the front assembly is driven by the proper action of the rear assembly. The rear of the door "pops" out to drag the front latch open. If things aren't properly adjusted and moving smoothly that operation will not work well. (I really would prefer old style hinged doors.)

As an aside, here in the cold northeast USA I have learned to apply some silicone grease to the side door rubber seals. Without that treatment it takes very little frost or ice to keep the door from "popping" open. Pulling on the front handle does little to free a frozen door and may break/damage the handle assembly.

vic
__________________
DAD NAS (N. Amer. Spec) 2004 140 2500 >330,000+ mi. Arctic Whitewash Brush-tone Grey
2006 Freightliner 140 2500HC >183,000+ mi. Arctic Whitewash (Spotted Snow Leopard accents)
"My opinion and worth everything you'll never pay for it." assumed.
Anyone can hold the helm when the sea is calm. Publilius Syrus
"There are only 10 types of people in the world: Those who understand binary, and those who don't." HaWiiLuVeR
16 ounces of unnecessary prevention can be worth a pound of manure.
Aqua Puttana is offline   Reply With Quote
The Following User Says Thank You to Aqua Puttana For This Useful Post:
billintomahawk (10-07-2018)
Old 10-07-2018, 04:29 AM   #7
billintomahawk
'02 2.7 T!N Freightliner
 
Join Date: May 2018
Location: Tomahawk, Wisconsin
Posts: 1,054
Thanks: 1,032
Thanked 411 Times in 289 Posts
Default Re: Sliding Door Center Roller Arm Questions

Quote:
Originally Posted by Aqua Puttana View Post
Most all of the latching and unlatching of the front assembly is driven by the proper action of the rear assembly. The rear of the door "pops" out to drag the front latch open. If things aren't properly adjusted and moving smoothly that operation will not work well. (I really would prefer old style hinged doors.)

As an aside, here in the cold northeast USA I have learned to apply some silicone grease to the side door rubber seals. Without that treatment it takes very little frost or ice to keep the door from "popping" open. Pulling on the front handle does little to free a frozen door and may break/damage the handle assembly.

vic
Vic,
Been lubing my seals with old tranny fluid, the stuff is magic for door seals and front /rear bumpers. My bumpers came to life and look new. They were looking streaked, bleached and nasty.

bill
__________________
billintomahawk
2002 T1N Freightliner
OM 612 2.7L
Transporter 1 Neu 154HP
2500 140"WB, low top
Tank, the repurposed van
https://www.sprinter-source.com/foru...ad.php?t=76877

Last edited by billintomahawk; 10-07-2018 at 04:31 AM.
billintomahawk is offline   Reply With Quote
The Following User Says Thank You to billintomahawk For This Useful Post:
Aqua Puttana (10-07-2018)
Old 10-28-2018, 02:50 PM   #8
Robert Foster
 
Join Date: Nov 2009
Location: Charlottesville, Va.
Posts: 286
Thanks: 81
Thanked 67 Times in 39 Posts
Default Re: Sliding Door Center Roller Arm Questions

After several frustrating attempts at trying to get my center roller arm adjusted I took it to the professionals. I fortunately have a local non dealership shop right near my house that specializes in Sprinter Fleet maintenance. They looked at my door for about 60 seconds and immediately said that the center roller that I had purchased awhile back was a cheap Chinese knockoff that was too weak, and quickly bends with use causing the rear of the door to sag. They had seen these Chinese knockoffs several times before. They ordered a true genuine MB part directly from MB, replaced it and adjusted my door. The sliding door works so smoothly now you can close it literally with one finger.

One interesting thing to note about their installation of the center roller arm. I purchased my 2005 Sprinter used in 2014 and the sliding door had obviously been worked on before. That big washer with one convex side installed under the bolt that holds the center arm roller to the door was always a point of interest for me. When I purchased my van the washer was installed with the convex side towards the inside surface of the door. The professionals at my local shop flipped the washer over and the convex side is now facing away from the door. I have no idea which way is OEM as I never could find a picture of it in any of the Sprinter Manuals that I looked through, but found it interesting and wanted to make note of it for other owners.
__________________
2005 Sprinter Westfalia ... currently undergoing a complete refitting
Charlottesville Va Home Inspector
Robert Foster is offline   Reply With Quote
The Following User Says Thank You to Robert Foster For This Useful Post:
Aqua Puttana (10-28-2018)
Old 10-28-2018, 03:24 PM   #9
Aqua Puttana
Poly - Thread Finder
 
Aqua Puttana's Avatar
 
Join Date: Apr 2008
Location: The Falls of Niagara, USA
Posts: 25,161
Thanks: 12,957
Thanked 14,213 Times in 9,022 Posts
Default Re: Sliding Door Center Roller Arm Questions

Quote:
Originally Posted by Robert Foster View Post
... The professionals at my local shop flipped the washer over and the convex side is now facing away from the door. I have no idea which way is OEM as I never could find a picture of it in any of the Sprinter Manuals that I looked through, but found it interesting and wanted to make note of it for other owners.
That is a Belleville washer. It is designed to keep tension and lock the assembly. The fastener bearing against the convex surface is correct.

vic
__________________
DAD NAS (N. Amer. Spec) 2004 140 2500 >330,000+ mi. Arctic Whitewash Brush-tone Grey
2006 Freightliner 140 2500HC >183,000+ mi. Arctic Whitewash (Spotted Snow Leopard accents)
"My opinion and worth everything you'll never pay for it." assumed.
Anyone can hold the helm when the sea is calm. Publilius Syrus
"There are only 10 types of people in the world: Those who understand binary, and those who don't." HaWiiLuVeR
16 ounces of unnecessary prevention can be worth a pound of manure.
Aqua Puttana is offline   Reply With Quote
The Following User Says Thank You to Aqua Puttana For This Useful Post:
Robert Foster (10-28-2018)
Old 10-28-2018, 03:44 PM   #10
Robert Foster
 
Join Date: Nov 2009
Location: Charlottesville, Va.
Posts: 286
Thanks: 81
Thanked 67 Times in 39 Posts
Default Re: Sliding Door Center Roller Arm Questions

Quote:
Originally Posted by Aqua Puttana View Post
That is a Belleville washer. It is designed to keep tension and lock the assembly. The fastener bearing against the convex surface is correct.

vic
Excellent. Thank you for the education and confirming that the guys at my local shop knew what they were doing in regards to the washer.
__________________
2005 Sprinter Westfalia ... currently undergoing a complete refitting
Charlottesville Va Home Inspector
Robert Foster is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT. The time now is 02:22 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.