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 > Alternative Fuels

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-31-2024, 04:32 PM
Registered User
 
Join Date: Jan 2024
Location: Durham NC
Posts: 13
WMO

Anyone running WMO blends in their om606? I have just bought one, and am running some. I have added an aux electric fuel pump at the rear, and soon to add an aux fuel tank for a 2 tank setup. Also plan to add heaters to the injector lines, and probably some water injection on the intake, Don't know if I'll plan to add power. I have a 99 model e300d chassis 210 that has been very well take care off, and 188,xxx on the dash. I currently trying to solve a crank no start issue. there was getting air in the fuel lines, so I added the aux pump. Last the night car started normally, and drove fine, but would not start this morning. Im going to replace all of the fuel line gaskets with viton seals and bypass the pre filter. But adding the aux pump, took care of the air issue I believe, so I dont think that should be the issue. Next I going to look at the SOV, the glow plug relay and the battery. Any other thoughts as to where to look? I am curious about a possible catalytic converter, it looks to me like this car has one, could I have clogged it by running WMO blend for a week?

EDIT:

I changed all of the o-rings to viton, bypassed the prefilter, added a paper filter inline further up. While changing the o-rings I tested the sov with 12+ and it switched numerous times. I have changed the fuel in the tank to about 75% petrol diesel, 25% wmo blend. The evening that I changed the o-rings the car start without issue, I drove for about a 15 minute test drive without issue. It sat overnight, and this morning would start and immediately shutdown, and continues doing that. I have tested the signal to pin 3 of the sov and only get .8 volts during start and run. I jumpered 12v to the sov and it cycles. I also checked all 4 wire going to the sov for shorts or opens, and I found none. So for some reason I believe the ecm is not supplying enough voltage for the sov to actuate during start and run. Is the sov supposed to get full 12v? What, if any signals does the ecm need before it will actuate the sov. Could it be that I have a bad ecm? I'm not getting any CEL codes atmo. thanks in advance for any help.


Last edited by flowershin5; 02-03-2024 at 06:50 PM. Reason: I diagnosed further the issue.
Reply With Quote
  #2  
Old 01-31-2024, 05:34 PM
Registered User
 
Join Date: Aug 2011
Location: Carolina
Posts: 1,554
Please sell the car to someone who will care about it before you destroy it
__________________
Current fleet
2006 E320 CDI
1992 300D - 5speed manual swapped

former members
1984 300D "Blues Mobile"

1978 300CD "El Toro"
Reply With Quote
  #3  
Old 02-03-2024, 06:36 PM
Registered User
 
Join Date: Jan 2024
Location: Durham NC
Posts: 13
awe

awe, such a negative reply, I was hoping for something helpful, thanks.
Reply With Quote
  #4  
Old 02-03-2024, 07:17 PM
Registered User
 
Join Date: Mar 2009
Location: San Diego
Posts: 3,545
Running alternative fuel is frowned upon in this forum, all you get would be negative comments.

Anyway, do you blend waste motor oil from diesel car or gas car and filter it first? Most people blend gasoline with gasoline motor oil. Diesel engine oil has too much soot. I don't have an answer for you but I would set up a mini tank under the hood and run diesel. Get back to basic to see whether engine starts and runs. If it runs then it may be your blend has issues but I doubt it.

Good luck.
__________________
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.
Reply With Quote
  #5  
Old 02-03-2024, 07:31 PM
Registered User
 
Join Date: Jan 2024
Location: Durham NC
Posts: 13
thanks

thanks for the heads up. So It is mostly gasoline wmo that has been filtered down to .5 micron. Any how the car has intermittently started and run over the last 4 or 5 days. when the car did start it ran great, with out issue. So think even though in the long term a large % of wmo fuel mix will probably cause some issues, I think in the short term this is not the cause of my no start. I am seeing the the ecm is not causing the sov to actuate when I turn the key to start and run. it is only out putting .8v...what could be the cause of that?
Reply With Quote
  #6  
Old 02-03-2024, 07:32 PM
engatwork's Avatar
Registered User
 
Join Date: May 2000
Location: Soperton, Ga. USA
Posts: 13,710
Go ahead and try to find/buy a new/old stock injection pump for it where you will have a spare.
__________________
Jim
Reply With Quote
  #7  
Old 02-03-2024, 07:44 PM
Registered User
 
Join Date: Jan 2024
Location: Durham NC
Posts: 13
Good advice, we are really up to our eyeballs with bills at the mo, but I'll look around for the future. And currently I am stuck using my wifes car, while she goes without. We borrowed money to buy this car because my truck broke down, engine started knocking and its going to be a long turn around. But what I really am needing is some info on how the SOV is actuated. I have read a lot about it but havent found as much info about the actuating circuit. As or right now it looks like the ecm for whatever reason is not actuating the sov.
Reply With Quote
  #8  
Old 02-04-2024, 04:00 PM
rwd4evr's Avatar
Master hull craftsman
 
Join Date: Apr 2012
Location: delaware
Posts: 1,079
Quote:
Originally Posted by ah-kay View Post
Running alternative fuel is frowned upon in this forum, all you get would be negative comments.



Anyway, do you blend waste motor oil from diesel car or gas car and filter it first? Most people blend gasoline with gasoline motor oil. Diesel engine oil has too much soot. I don't have an answer for you but I would set up a mini tank under the hood and run diesel. Get back to basic to see whether engine starts and runs. If it runs then it may be your blend has issues but I doubt it.



Good luck.
It's the alternative fuel section. What are you talking about?

Sent from my SM-G991U using Tapatalk
__________________
WARNING!!! VINTAGE MERCEDES MAY MULTIPLY UNCONTROLABLY!!! I have tons of Sl/Slc parts w108 w111 w126 and more. E-mail me with needs
BirchsgarageMB@gmail.com
Reply With Quote
  #9  
Old 02-05-2024, 08:08 AM
Registered User
 
Join Date: Jan 2024
Location: Durham NC
Posts: 13
Quote:
Originally Posted by flowershin5 View Post
Anyone running WMO blends in their om606? I have just bought one, and am running some. I have added an aux electric fuel pump at the rear, and soon to add an aux fuel tank for a 2 tank setup. Also plan to add heaters to the injector lines, and probably some water injection on the intake, Don't know if I'll plan to add power. I have a 99 model e300d chassis 210 that has been very well take care off, and 188,xxx on the dash. I currently trying to solve a crank no start issue. there was getting air in the fuel lines, so I added the aux pump. Last the night car started normally, and drove fine, but would not start this morning. Im going to replace all of the fuel line gaskets with viton seals and bypass the pre filter. But adding the aux pump, took care of the air issue I believe, so I dont think that should be the issue. Next I going to look at the SOV, the glow plug relay and the battery. Any other thoughts as to where to look? I am curious about a possible catalytic converter, it looks to me like this car has one, could I have clogged it by running WMO blend for a week?

EDIT:

I changed all of the o-rings to viton, bypassed the prefilter, added a paper filter inline further up. While changing the o-rings I tested the sov with 12+ and it switched numerous times. I have changed the fuel in the tank to about 75% petrol diesel, 25% wmo blend. The evening that I changed the o-rings the car start without issue, I drove for about a 15 minute test drive without issue. It sat overnight, and this morning would start and immediately shutdown, and continues doing that. I have tested the signal to pin 3 of the sov and only get .8 volts during start and run. I jumpered 12v to the sov and it cycles. I also checked all 4 wire going to the sov for shorts or opens, and I found none. So for some reason I believe the ecm is not supplying enough voltage for the sov to actuate during start and run. Is the sov supposed to get full 12v? What, if any signals does the ecm need before it will actuate the sov. Could it be that I have a bad ecm? I'm not getting any CEL codes atmo. thanks in advance for any help.
I'll do a quick follow up, but I think I will start a new thread. I'm still having the intermittent no start issue. When the car does start, it runs and drive great. When it doesnt start like this morning, it'll crank and actually start for a few seconds, sputter and die. During this time the starter stays engaged, and I don't see any RPM's on the dash. I'm thinking that the ecm isn't seeing a crank signal perhaps. It also seems at this time that the sov isn't actuating, but I need to confirm this. Yesterday when the car started I could turn the key to run, and hear and feel the clicks for the glow plug relay as well as the sov. But I've noticed when the car won't start it pulls a vacuum (air or fuel vapor) in the line coming from the lift pump as well as some air in the line going from the sov to the lift pump. I would interpret this to meaning the sov isnt opening, or isnt opening fully.
Reply With Quote
  #10  
Old 02-05-2024, 08:39 AM
greazzer's Avatar
dieselfuelinjector.guru
 
Join Date: Sep 2010
Location: 2021 - The Great Florida Count-down
Posts: 6,417
Black diesel is tough. I ran WVO for years and never an issue

I’ve rebuilt lots of injectors from folks running black diesel. If you can figure out a way to clean the used motor oil then you’ll be a rich man. I ran ten gallons through a centrifuge for hours and it’s still “dirty”. The dissolved metals will make your pintles sticky in a few miles. Two tank systems will flush it out but that garbage goes somewhere. Just like burning WVO, there’s a trade off in the process of burning it and what is left behind
Reply With Quote
  #11  
Old 02-05-2024, 08:44 AM
Registered User
 
Join Date: Jan 2024
Location: Durham NC
Posts: 13
Yeah, sounds like sound advice, I very much appreciate the reply, and I will take in into consideration.
Reply With Quote
  #12  
Old 02-05-2024, 01:02 PM
Registered User
 
Join Date: Jan 2024
Location: Durham NC
Posts: 13
Quote:
Originally Posted by greazzer View Post
Black diesel is tough. I ran WVO for years and never an issue

I’ve rebuilt lots of injectors from folks running black diesel. If you can figure out a way to clean the used motor oil then you’ll be a rich man. I ran ten gallons through a centrifuge for hours and it’s still “dirty”. The dissolved metals will make your pintles sticky in a few miles. Two tank systems will flush it out but that garbage goes somewhere. Just like burning WVO, there’s a trade off in the process of burning it and what is left behind
What engine did you run it in? and what engines did you end up rebuilding?
Reply With Quote
  #13  
Old 02-05-2024, 01:38 PM
greazzer's Avatar
dieselfuelinjector.guru
 
Join Date: Sep 2010
Location: 2021 - The Great Florida Count-down
Posts: 6,417
I never ran it in an engine I owned. It was for customers of mine who did. OM616, 617, 603, and 606 for Mercedes. GM engines seemed a little bit more tolerant
Reply With Quote
  #14  
Old 02-05-2024, 01:44 PM
greazzer's Avatar
dieselfuelinjector.guru
 
Join Date: Sep 2010
Location: 2021 - The Great Florida Count-down
Posts: 6,417
I never rebuilt engines. I rebuild injectors
Reply With Quote
  #15  
Old 02-19-2024, 10:08 AM
Registered User
 
Join Date: Jan 2024
Location: Durham NC
Posts: 13
I'll follow up here in hopes this may help someone:

This is much later, but I'm posting as it may help someone. I have a 99e300 188,xxx. Intermittant no start, with no DIL trouble codes. I added a rear electric fuel pump and replaced all o-rings with viton, as well as by passed the pre filter and added inline filter further towards tank. I did this because it looked like I was getting air in the lines when It wouldn't start. None of this fixed the issue. I had all good glow-plugs, and controller connection and harness seemed good. SOV tested good, and wires to it tested good. But when I had the no start issue I could see that the sov wasn't being activated by the PCM (causing what looked like air, but more than likely just fumes pulled out of the fuel by vapor pressure, and vacuum). Also when I had no start it would crank, and start just a little bit, but even when I let of the key, it would continue to crank until ecm timeout. When this happened I noticed, I got not rpm on the gauge. Now you may see where this is heading. I read on a forum that the crankshaft position sensor could cause a crank no start. So on my live data using a scan tool, and with a multimeter measuring the ckp ecm pins (during cranking you should seem some ac voltage maybe less than a volt). When the car wouldn't start I wouldn't see rpm on my scan tool and I got 0vac on the multimeter (when it would start you would see about 2 volts on the old ckp, and on the new one over 3 at idle usually). I suppose that if the ECM doesn't see crank signal then it disables the sov? It would be better to use a scope on this to see any weird signals, but I didn't have one, and a multi meter proved to be enough to diagnose this. Anyhow I replaced the ckp sensor with a matching bosch part number, and the car now starts normally every time for over a week now. I was using Mitchell's erepair database....it has very little info on how the ecm controls cranking, so it was next to useles, but this is the best I can figure, is the the ecm is looking for ckp signal during cranking and without it, it may disable the sov.

greazzer in regards to your post, I think I will look into making biodiesel, and running a light mix of filtered wvo instead of the wmo I have been running. I and leave the wmo to my 5.9 Cummins. Thanks for the advice, I want to run alternative fuels, but run them safetly.

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 06:29 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page