Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-05-2011, 04:29 PM
Registered User
 
Join Date: Aug 2009
Location: Vancouver, BC, Canada
Posts: 114
w126 - replaced mono valve... now no heat at all?

on Saturday I replaced the mono valve in my 300SD per the usual symptoms, and it looked to be the culprit, as the rubber had a typical tear in it. it required a fair bit more force to get out than I expected, but I thought I put it all back together the right way but I could be wrong. I even tried unplugging it with no success. very timely to have no heat...

no fuses blown. any ideas where to start?

thanks.
__________________
1981 300SD - 283,000 KM's at purchase, 360k+ now. Engine replaced at 311k. 16" CLK wheels, w126 gen II cosmetic upgrades, late w126 leather interior. Parting due to fire

1987 300SDL - 243K miles and counting. Just getting started!

2001 Ford F250 Super Duty "Platinum Edition" Lariat 4x4 7.3L turbo diesel, 260k+ miles, various small mods.
Reply With Quote
  #2  
Old 12-05-2011, 04:35 PM
Registered User
 
Join Date: Jan 2002
Posts: 18,355
Take it back apart and see what it looks like? Do you still have the old torn one to replace it with? Maybe your new monovalve is a dud.
__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
Reply With Quote
  #3  
Old 12-05-2011, 04:44 PM
Zacharias's Avatar
Not so amused
 
Join Date: Apr 2010
Location: West Quebec
Posts: 4,025
Are you certain you reassembled it with all the pieces in the same order?

http://mbdieseldiy.tripod.com/images/11a.jpg
__________________


Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22
Reply With Quote
  #4  
Old 12-05-2011, 05:33 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by destroy View Post
it required a fair bit more force to get out than I expected............
...........and, therein lies the secret to your problem. The insert should fall right out of the housing without any force. If it's binding in the housing, it cannot cycle and operate the diaphragm to open and close the flow.
Reply With Quote
  #5  
Old 12-06-2011, 11:05 AM
Zacharias's Avatar
Not so amused
 
Join Date: Apr 2010
Location: West Quebec
Posts: 4,025
Quote:
Originally Posted by Brian Carlton View Post
...........and, therein lies the secret to your problem. The insert should fall right out of the housing without any force. If it's binding in the housing, it cannot cycle and operate the diaphragm to open and close the flow.
Mine was a bit tight in the housing when I did it last month, though not so much as the OP describes here.

Is there a fix to the tightness issue, or does it mean buying a complete new assembly?

Mine seemed to work a bit inconsistently the first week but now is working great.
__________________


Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22
Reply With Quote
  #6  
Old 12-06-2011, 11:15 AM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by Zacharias View Post
Mine was a bit tight in the housing when I did it last month, though not so much as the OP describes here.

Is there a fix to the tightness issue, or does it mean buying a complete new assembly?

Mine seemed to work a bit inconsistently the first week but now is working great.
I would presume that there is a bit of corrosion on the inside of the aluminum housing that can be cleaned up with some fine emery cloth. The valve must shuttle inside the housing...........if there is any binding, it cannot do that.
Reply With Quote
  #7  
Old 12-07-2011, 02:47 AM
Hit Man X's Avatar
I LOVE BRUNETTES
 
Join Date: Sep 2004
Location: FUNKYTOWN
Posts: 9,085
Exclamation

Quote:
Originally Posted by Zacharias View Post
Are you certain you reassembled it with all the pieces in the same order?

http://mbdieseldiy.tripod.com/images/11a.jpg


Pic did not load.



BTW, I heard Bosch has stopped making their repair kit for the monovalve.
__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
[/IMG]
Reply With Quote
  #8  
Old 12-07-2011, 08:27 AM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,290
Quote:
Originally Posted by Hit Man X View Post
Pic did not load.



BTW, I heard Bosch has stopped making their repair kit for the monovalve.
it's NLA on fastlane too...

what are we going to do now?
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote
  #9  
Old 12-07-2011, 10:44 AM
Zacharias's Avatar
Not so amused
 
Join Date: Apr 2010
Location: West Quebec
Posts: 4,025
Quote:
Originally Posted by vstech View Post
it's NLA on fastlane too...

what are we going to do now?
There is another supplier.

The Bosch is still available in Canada, or was about a month ago. However, it was somewhere around $100 and the other kit was about $45 I think.

I can go out and find the box if anyone wants the supplier name. I just don't recall (it wasn't a common name, no NOT URO I do remember that much).
__________________


Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22
Reply With Quote
  #10  
Old 12-07-2011, 10:52 AM
Zacharias's Avatar
Not so amused
 
Join Date: Apr 2010
Location: West Quebec
Posts: 4,025
Quote:
Originally Posted by Hit Man X View Post
Pic did not load.
Try again now. Tripod, the host, seems to be having issues.

http://mbdieseldiy.tripod.com/images/11a.jpg

The direct link just started working again for me.

But for some reason, when the direct link didn't work, if you went into Google and type in "monovalve repair procedure" the page would load from the resulting link and the pic is there.

Possibly Google was loading a cached page. I don't know....
__________________


Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22
Reply With Quote
  #11  
Old 12-07-2011, 09:30 PM
Hit Man X's Avatar
I LOVE BRUNETTES
 
Join Date: Sep 2004
Location: FUNKYTOWN
Posts: 9,085
Thumbs up

Quote:
Originally Posted by vstech View Post
it's NLA on fastlane too...

what are we going to do now?


The other supplier, MTC, is crap too. I chose another four letter word but it is blocked.

I had their shifter bushings fall apart in about eight months on my 735i...
__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
[/IMG]
Reply With Quote
  #12  
Old 12-07-2011, 10:25 PM
Zacharias's Avatar
Not so amused
 
Join Date: Apr 2010
Location: West Quebec
Posts: 4,025
Quote:
Originally Posted by Hit Man X View Post
The other supplier, MTC, is crap too. I chose another four letter word but it is blocked.
Ah. Well. That fills me with warm n'fuzzies.

I think that was the supplier for the one I used. The parts supplier I got it from actively tracks feedback on what they supply, so if it's keerap I will let them know.
__________________


Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22
Reply With Quote
  #13  
Old 12-07-2011, 10:42 PM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,354
Attention everyone

If the buy button is active = there is stock available in the warehouse, in spite of the text saying NLA...

000 835 06 44
Copy and paste this part number into "Find Your Parts
Enter Part Number"

000 835 06 44
000 835 06 44
000 835 06 44
000 835 06 44
000 835 06 44
PeachParts FastLane Mercedes Parts Store


Call Phil he has many other suppliers with the BOSCH in stock..



.
__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Prototype Vehicle build.
Prototype Fleet Durability
Prototype vehicle instrumentation.
Technical Quality Auditor.
Automotive Technical Writer

1973 300D
1973 309D - stolen
1978 280SE
1980 240D
1983 300D
1984 190D

Last edited by whunter; 12-07-2011 at 11:05 PM.
Reply With Quote
  #14  
Old 12-07-2011, 11:16 PM
RML RML is offline
Out of Garage Space
 
Join Date: Jun 2006
Location: Southwest PA
Posts: 1,024
Quote:
Originally Posted by Zacharias View Post
Try again now. Tripod, the host, seems to be having issues.

http://mbdieseldiy.tripod.com/images/11a.jpg

The direct link just started working again for me.

But for some reason, when the direct link didn't work, if you went into Google and type in "monovalve repair procedure" the page would load from the resulting link and the pic is there.

Possibly Google was loading a cached page. I don't know....
All I got was a blank page with the Tripod logo in the upper left.
__________________
85 300D 72K Anthracite Grey (Rutherford) 0-60 in 13 seconds
84 300D 331K Black (Rufus) 0-60 in 14 seconds (adjusted the ALDA)
00 Toyota Sienna 208K (Sold)
15 Subaru Outback 22K
98 Ford Taurus 62K (Gertie - Was Grandma's - drove it to church and shopping - really) Daughter's car now.
30 Model A Ford 2 Door Sedan (Sold) 0-60 in . . . Never reached 60
Reply With Quote
  #15  
Old 12-07-2011, 11:35 PM
Zacharias's Avatar
Not so amused
 
Join Date: Apr 2010
Location: West Quebec
Posts: 4,025
Quote:
Originally Posted by RML View Post
All I got was a blank page with the Tripod logo in the upper left.
Try going to The Unofficial MB Diesel DIY Pages

And go to the bottom of the page. Click on the photo.

For some reason Tripod doesn't like the link to the pic being used directly. The rest of the page works fine for me right now....
__________________


Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22
Reply With Quote
Reply

Bookmarks

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 01:23 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page