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Bosch M and Mw pump theory
300D50 Offline
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#1
Bosch M and Mw pump theory
Please give your opinions.

https://docs.google.com/document/d/1QkAv...y=CJXuhs0I

Many thanks to OM616 for putting his time and effort into putting together 99%+ of the information in this document.
1990 Power Ram 50 V6 SOHC 24V 6g72

I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
(This post was last modified: 07-03-2011, 01:37 PM by 300D50.)
07-03-2011, 01:35 PM
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Alastair E Offline
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#2
RE: Bosch M and Mw pump theory
Nice.....

But, Not enough about the 'M' pump specifically, for me!

We dont have the MW here at all as far as I know--Never seen one on M.B anyway!
[Image: 300TDnoplate.jpg]
07-03-2011, 01:54 PM
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300D50 Offline
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#3
RE: Bosch M and Mw pump theory
Well, the basics should swap over since it's mostly the governor in the doc right now.

If anyone wants to add to the doc, let me know and I'll add you to the edit list.
1990 Power Ram 50 V6 SOHC 24V 6g72

I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
07-03-2011, 01:57 PM
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garage Offline
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#4
RE: Bosch M and Mw pump theory
Now thats some good stuff!!
1987 300D: EGR Delete, ARV Delete, Cold Air Intake...
07-03-2011, 05:19 PM
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300D50 Offline
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#5
RE: Bosch M and Mw pump theory
(07-03-2011, 05:19 PM)garage Wrote: Now thats some good stuff!!

See, good things do come to those who wait!

There will be more added over time, but one of the big things we need is some non-copyrighted photo's of pump guts, since most the ones from the other thread were sort of "hot"...
1990 Power Ram 50 V6 SOHC 24V 6g72

I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
07-03-2011, 05:23 PM
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Biohazard Offline
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#6
RE: Bosch M and Mw pump theory
That is a great explanation of how the pump internals work! Turns out I was right, I didn't know crap about the guts of a pump. LOL I had gotten lucky when I pulled the rack limiter out of my MW and felt an increase. Also explains why some folks here didn't feel anything. Thank you for your effort on this!!
82 300SD aka The Flyin Pumpkin (Gone): 7.5mm super M-pump, T3 60 trim turbo, Coldish air intake, A/W intercooler, propane injection, SW Boost and EGT gauges, Monark 265 nozzles, ported/polished cylinder head.

84 Euro 300D 4 sp: White with black trunk and hood. Blue cloth interior. Manual everything. 300DT front swaybar. C320 17" wheels. Now with the Flyin Pumpkins engine! 
07-03-2011, 09:40 PM
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led-panzer Offline
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#7
RE: Bosch M and Mw pump theory
Excellent document. Thank you very much OM616.
1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
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07-03-2011, 10:57 PM
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Syncro_G Offline
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#8
RE: Bosch M and Mw pump theory
That's a nice writeup. I like that it explains the controls of the pump.
Now that were seeing what not to do, it would be cool to distill a new step by step power tune procedure from it.
-------------
'84 G-Wagen turbodiesel
'75 240D 4-Speed

07-04-2011, 05:26 PM
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300D50 Offline
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#9
RE: Bosch M and Mw pump theory
It's all in there. Wink

Start with a known working pump, document what you do, and follow the guidelines.

Tune a mans car, he's happy for a week.
Teach a man to tune his car, he's happy till he needs a larger turbo!
1990 Power Ram 50 V6 SOHC 24V 6g72

I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
07-04-2011, 05:31 PM
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Syncro_G Offline
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#10
RE: Bosch M and Mw pump theory
(07-04-2011, 05:31 PM)300D50 Wrote: It's all in there. Wink

Start with a known working pump, document what you do, and follow the guidelines.

Tune a mans car, he's happy for a week.
Teach a man to tune his car, he's happy till he needs a larger turbo!

I'll have to read it a few more times then. Smile

Edit: on further thought and reading, what i gather is that several adjustments are interdependent.
That would worry me if I were to start messing with any of the settings.
So I would think there's a specific or recommended order to adjustment.
Should I assume that that procedure is covered in the official Bosch manual and this doc is supplemental to the official manual?
It's perfectly fair if this is the case but it should probably be stated explicitly -- something like a "how to use this doc" statement. Especially since the instructions we had a while back for RL removal were sort of a f*** the manual kind of deal.

Overall I'm pretty stoked on the information there.
-------------
'84 G-Wagen turbodiesel
'75 240D 4-Speed

(This post was last modified: 07-04-2011, 07:29 PM by Syncro_G.)
07-04-2011, 05:55 PM
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OM616 Offline
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#11
RE: Bosch M and Mw pump theory
(07-04-2011, 05:55 PM)Syncro_G Wrote:
(07-04-2011, 05:31 PM)300D50 Wrote: It's all in there. Wink

Start with a known working pump, document what you do, and follow the guidelines.

Tune a mans car, he's happy for a week.
Teach a man to tune his car, he's happy till he needs a larger turbo!

I'll have to read it a few more times then. Smile

Edit: on further thought and reading, what i gather is that several adjustments are interdependent.
That would worry me if I were to start messing with any of the settings.
So I would think there's a specific or recommended order to adjustment.
Should I assume that that procedure is covered in the official Bosch manual and this doc is supplemental to the official manual?
It's perfectly fair if this is the case but it should probably be stated explicitly -- something like a "how to use this doc" statement. Especially since the instructions we had a while back for RL removal were sort of a f*** the manual kind of deal.

Overall I'm pretty stoked on the information there.

Bosch does have a specific order that they want their pump guys to do the adjustments.

As for making "performance" adjustments, I have developed a sequence that I make the adjustments, but it depends on what you want to adjust. I will not share my procedure, sorry.

Before I pull the back off of a RW, I get a feel for how the engine responds to the throttle, and then I pull the cover an make an "O SHIT" change, (make several adjustments at once based on experience and evaluation), Usually I have to go in one more time to fine tune one thing or another.

Nothing in the doc relates to the MW/RW manual. Everything in there we are throwing out the window. The doc is all from my understanding and experience, not Bosch.

I have had several cars towed to me to have me straighten out what the owner did to his governor. I super highly recommend that no one remove the back cover.





07-04-2011, 08:34 PM
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randomdude Offline
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#12
RE: Bosch M and Mw pump theory
since a lot of this revolves around the "rack" can anyone post a pic of one? ive searched a while on google and not had good luck.

i may have seen it but not known what it was since this is my first time playing with IP's. but im tryin!!! lol.
cars? what cars? WHERE???
(This post was last modified: 07-05-2011, 02:02 PM by randomdude.)
07-05-2011, 02:01 PM
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ronnie Offline
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#13
RE: Bosch M and Mw pump theory
The actual rack is hard to see without taking the ip apart. Thermo king diesels(made by izusu) Have a cover plate that you can see the rack itself. It looks like rack and pinion steering gears. What you most likely want to see is the rack limiter, and it adjustment. There is a good picture of it in one of the recent posts on this forum.
07-05-2011, 07:12 PM
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Captain America Offline
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#14
RE: Bosch M and Mw pump theory
That is an awesome Read OM616. THANK YOU. It makes perfect sense.

One of the important things that stood out to me is that it seem thats TC and Max rpm should be, I would say, adjusted equally. Return to Idle seems easy enough to achieve

.... Now to put the rack limiter back in .... Dodgy

Oh! Speaking of that, You had mentioned briefly on possibility of a SLIGHT rack limiter adjustment being made, but I did not see anything about it later. Is it something that will be added later?

Please understand I do not mean to push you here, Just trying to ask some intelligent questions. Give me some time, I will explore myself on my virgin (Rack limiter less) pump

Don't yell at me! Blush

1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

07-06-2011, 01:34 AM
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300D50 Offline
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#15
RE: Bosch M and Mw pump theory
In this case, "slight adjustment" means you can adjust it to let the rack travel slightly further, and it should work.

We also need some back cover and side cover shots if anyone has their IP apart.
1990 Power Ram 50 V6 SOHC 24V 6g72

I can be wrong, don't take everything I say as verbatim, please fact-check first.
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07-06-2011, 04:49 AM
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Captain America Offline
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#16
RE: Bosch M and Mw pump theory
Give me a couple days, I will post some

1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

07-06-2011, 10:28 AM
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MFSuper90 Offline
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#17
RE: Bosch M and Mw pump theory
(07-06-2011, 10:28 AM)Captain America Wrote: Give me a couple days, I will post some

So did anyone every repost the back of a MW pump telling what is what? i really want to turn my pump up, but dont want to mess it all up
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
08-25-2011, 03:36 PM
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aaa Offline
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#18
RE: Bosch M and Mw pump theory
(This post was last modified: 08-25-2011, 03:45 PM by aaa.)
08-25-2011, 03:45 PM
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MFSuper90 Offline
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#19
RE: Bosch M and Mw pump theory
(08-25-2011, 03:45 PM)aaa Wrote: Somebody label this:
http://www.superturbodiesel.com/std/Thre...8#pid32698

I would, but i dont know which is which Tongue
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
08-25-2011, 04:09 PM
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Captain America Offline
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#20
RE: Bosch M and Mw pump theory
I think I have it correct Angel

[Image: MWPumpLabeled.png]

And Forced, Douche's pic below:

[Edited for content. Sorry]

1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

(This post was last modified: 08-26-2011, 06:54 AM by winmutt.)
08-25-2011, 11:33 PM
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carlitosgy6 Offline
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#21
RE: Bosch M and Mw pump theory
(08-25-2011, 11:33 PM)Captain America Wrote: I think I have it correct Angel

[Image: MWPumpLabeled.png]

And Forced, Douche's pic below:

[Edited for content. Sorry]
THANK YOU I REALLY NEEDED THAT INFO!!!

08-27-2011, 09:06 PM
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Captain America Offline
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#22
RE: Bosch M and Mw pump theory
(08-27-2011, 09:06 PM)carlitosgy6 Wrote: THANK YOU I REALLY NEEDED THAT INFO!!!

Not a problem!
--------------------------------------------------------------------------------------------------------
Why cant his pic be up? "permission is granted to copy and/or distribute as long as this picture is not altered"

1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

(This post was last modified: 08-27-2011, 10:07 PM by Captain America.)
08-27-2011, 10:01 PM
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winmutt Offline
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#23
RE: Bosch M and Mw pump theory
(08-27-2011, 10:01 PM)Captain America Wrote: Why cant his pic be up? "permission is granted to copy and/or distribute as long as this picture is not altered"
Because I don't want any more headaches. Yours is going into the IP thread Big Grin
1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
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08-30-2011, 08:16 AM
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Captain America Offline
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#24
RE: Bosch M and Mw pump theory
Easy enough! lol Angel
When I finally get around to taking mine apart, I will take a pic with a clean IP and relabel

I tried to label it based on the terminology OM616 used in his pump theory document

1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

(This post was last modified: 08-30-2011, 04:33 PM by Captain America.)
08-30-2011, 04:29 PM
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carlitosgy6 Offline
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#25
RE: Bosch M and Mw pump theory
I can take a better pic if you want
08-30-2011, 07:43 PM
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Captain America Offline
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#26
RE: Bosch M and Mw pump theory
(08-30-2011, 07:43 PM)carlitosgy6 Wrote: I can take a better pic if you want

Sure! If you are able to clean the oil off (brake clean?) and focus a tad better I think it would help a lot Wink

1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

08-30-2011, 11:23 PM
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MFSuper90 Offline
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#27
RE: Bosch M and Mw pump theory
Can someone please tell me how they broke the locking ring loose on the torque control? Last time i unsuccesfully tried, it was i giant PIA, and i gave up and everything back together because i had to have the car the next day
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
09-01-2011, 08:30 AM
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winmutt Offline
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#28
RE: Bosch M and Mw pump theory
IIRC I ground a socket down to fit.
1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
(This post was last modified: 09-01-2011, 01:26 PM by winmutt.)
09-01-2011, 01:25 PM
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OM616 Offline
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#29
RE: Bosch M and Mw pump theory
(09-01-2011, 01:25 PM)winmutt Wrote: IIRC I ground a socket down to fit.

Take a 13/16 spark plug socket and grind the end so it has two tabs about .100" wide, 180 degrees from each other. The tabs only need to be about .125 tall.

The spark plug socket is nice because it has a hex for a wrench. This is a nice feature on the 617.

Remember that the capsule will rotate when you loosen or tighten the lock ring. You must note its position prior to loosening the lock ring, and confirm its position after tightening the lock ring.

After you have the lock ring broken loose, (1/8 to ¼ turn), make sure that when you turn the capsule, the ring stays put, other wise the lock ring will move with the capsule, and when you go to tighten the lock ring, you will just be turning the capsule back in.

09-01-2011, 01:44 PM
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Captain America Offline
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#30
RE: Bosch M and Mw pump theory
Thanks for the info OM616

Do you approve of the labeling on the pump picture?

1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

09-01-2011, 04:20 PM
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OM616 Offline
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#31
RE: Bosch M and Mw pump theory
(09-01-2011, 04:20 PM)Captain America Wrote: Thanks for the info OM616

Do you approve of the labeling on the pump picture?

Looks fine from where I'm sitting, Wink

09-01-2011, 04:46 PM
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carlitosgy6 Offline
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#32
RE: Bosch M and Mw pump theory
ill do it tomorrow
09-01-2011, 08:27 PM
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#33
RE: Bosch M and Mw pump theory
thank you very much om616. I appreciate the document you typed up and all the information you provide. I dont think i would even come close to understanding a mw pump without your MW Theory Tongue[/i]
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
(This post was last modified: 09-01-2011, 09:06 PM by MFSuper90.)
09-01-2011, 09:06 PM
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Captain America Offline
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#34
RE: Bosch M and Mw pump theory
(09-01-2011, 04:46 PM)OM616 Wrote:
(09-01-2011, 04:20 PM)Captain America Wrote: Thanks for the info OM616

Do you approve of the labeling on the pump picture?

Looks fine from where I'm sitting, Wink

Your Blessing is much appreciated! Heart

1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

09-01-2011, 11:47 PM
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#35
RE: Bosch M and Mw pump theory
I just went to check this out and it seems to require a Google account which I don't have... Sad
1998 MB E300 - 194,000 miles. Current/future mods: 7.5mm pump elements, Holset HX40 Turbo feeding Eaton M90 supercharger through custom fabbed intake system. Aeroturbine muffler, scratch-built 4" stainless exhaust. EGR eliminated, ECM recalibrated, modified rack position feedback circuit. Porterfield RS brake pads, Bilstein sport shocks, VDO EGT, oil and boost gauges.

2000 Ford F250 - 150,000 miles. Current/future mods: DP Tuner 3 map chip, scratch-built high flow intake, high output IDM, open circuit fuel system, ball bearing turbo, South Bend full metal clutch, slotted and drilled rotors. Autometer Sport Comp EGT and boost gauges.
09-12-2011, 05:19 AM
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Captain America Offline
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#36
RE: Bosch M and Mw pump theory
Works for me without logging in

1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

09-12-2011, 03:47 PM
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#37
RE: Bosch M and Mw pump theory
Do you have G-mail or any google related sign-in's? Maybe my youtube log in would work...
1998 MB E300 - 194,000 miles. Current/future mods: 7.5mm pump elements, Holset HX40 Turbo feeding Eaton M90 supercharger through custom fabbed intake system. Aeroturbine muffler, scratch-built 4" stainless exhaust. EGR eliminated, ECM recalibrated, modified rack position feedback circuit. Porterfield RS brake pads, Bilstein sport shocks, VDO EGT, oil and boost gauges.

2000 Ford F250 - 150,000 miles. Current/future mods: DP Tuner 3 map chip, scratch-built high flow intake, high output IDM, open circuit fuel system, ball bearing turbo, South Bend full metal clutch, slotted and drilled rotors. Autometer Sport Comp EGT and boost gauges.
09-12-2011, 04:07 PM
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Captain America Offline
Boostin' & Roostin'
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Posts: 2,219
Joined: Jun 2010
Location: Riverside, California USA
#38
RE: Bosch M and Mw pump theory
I do but not logged into it when I load the page. PM me your email address

1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

09-13-2011, 01:36 AM
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E300TSC Offline
Turbo-Supercharged
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Posts: 321
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#39
RE: Bosch M and Mw pump theory
For grins, I just typed in my usual forum password and it let me in. I must have set something up with Google in the past. Got the document now, thanks to OM616 for the time and effort put into this!
1998 MB E300 - 194,000 miles. Current/future mods: 7.5mm pump elements, Holset HX40 Turbo feeding Eaton M90 supercharger through custom fabbed intake system. Aeroturbine muffler, scratch-built 4" stainless exhaust. EGR eliminated, ECM recalibrated, modified rack position feedback circuit. Porterfield RS brake pads, Bilstein sport shocks, VDO EGT, oil and boost gauges.

2000 Ford F250 - 150,000 miles. Current/future mods: DP Tuner 3 map chip, scratch-built high flow intake, high output IDM, open circuit fuel system, ball bearing turbo, South Bend full metal clutch, slotted and drilled rotors. Autometer Sport Comp EGT and boost gauges.
09-13-2011, 06:37 AM
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Greazzer Offline
Superturbo
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Posts: 1,259
Joined: Jan 2011
Location: South Carolina
#40
RE: Bosch M and Mw pump theory
HELP / INFO please

Will a pump from a 300GD work on the OM 617.952 engine. Also, I was told by the seller that the "M" Pump did not have an ALDA. Is that true. Below is the pump's info. Will this work for my 1985 300D Turbo ?

Please let me know. I am getting ready to buy myself an "M" pump finally.

Thanks in advance.

Data Plate:

PES5M55C320RS105
011 649 31193
0 400 075 999
617 070 1901 EPRO4
BOSCH



Seventh Year Anniversary with STD on 1-9-2018

Project 2018: Really get the car finished -- Turbo OM617 greater than 175 MPH goal.

RED W123 - left Germany as 240D in 1982.  Full AMG body kit less rear apron, 2:65LSD, five speed Getrag 717.400, manual steering, read leather interior, manual brake conversion, electric water pump (EWP), and a bunch of other goodies ...
09-13-2011, 09:50 AM
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winmutt Offline
bitbanger
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Posts: 3,468
Joined: Dec 2008
Location: Atlanta GA
#41
RE: Bosch M and Mw pump theory
300GD is almost certainly going to be om617.91x and would not have an alda. I would also imagine that the GD is tuned for torque. If you are planning on upgrading(rebuild and elements) this then you are gtg, otherwise pass.


Do you need a new pump?
1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
09-13-2011, 01:11 PM
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Greazzer Offline
Superturbo
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Posts: 1,259
Joined: Jan 2011
Location: South Carolina
#42
RE: Bosch M and Mw pump theory
Hey,

I am looking for a "M" Pump for a rebuild ... SUPER PERFORMANCE BUT also OK for everyday driver. So is this OK ? No ALDA ? So I guess I will be getting rid of some vacuum elements and lines. New Pump ? You have one for sale ? Thanks
Seventh Year Anniversary with STD on 1-9-2018

Project 2018: Really get the car finished -- Turbo OM617 greater than 175 MPH goal.

RED W123 - left Germany as 240D in 1982.  Full AMG body kit less rear apron, 2:65LSD, five speed Getrag 717.400, manual steering, read leather interior, manual brake conversion, electric water pump (EWP), and a bunch of other goodies ...
09-13-2011, 03:14 PM
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cjcosta Offline
TA 0301
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Posts: 51
Joined: Sep 2010
Location: Portugal
#43
RE: Bosch M and Mw pump theory
Great doc. Thanks.
Maybe after reading it a few more times i get my hands on the IP.
12-07-2011, 12:03 AM
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lpumb3 Offline
617 300sd
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Posts: 141
Joined: Sep 2012
Location: 01505 ma
#44
RE: Bosch M and Mw pump theory
awesome write up om616
, ill be re-reading it a few times . if i get most of the fine balance act of tuning it ill be happy .it seems like for every turn in or out you make you have to mirror/negative the adjustment on the other end of the spring , is the ALDA and shutoff valve the only pressure actuated fuel delivery function on these pumps? i have an auto so i have the trans functions . having trouble finding a good vacume thread on here, for tuning my tranny , before i start tinkering with pump etc ?
(This post was last modified: 10-02-2012, 05:20 PM by lpumb3.)
10-02-2012, 12:29 PM
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