wanted 606 turbo lift pump and I need to know how does it work with the IP?

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Older Style Overflow valve

Spock,
That's (In your most recent picture above) the "Serviceable" Overflow valve.
(From the older OM161 and OM617 series engines.

[Somebody @ Bosch (Or Mercedes requested of Bosch) got "Smart"
(Instead of selling them just a new spring, force them to buy a whole valve.)
so the newer Overflow valves are not serviceable.]
[Also the manufacturing process for the SEALED Non-Serviceable valves is CHEAPER]

BUT,No the newer "Sealed" overflow valves are not made to be "Serviceable"
(I.E. replace the squashed spring.)

If you knew the Overpressure relief "Pop Off" figure you could make your own
Valve.
Either drill out a Banjo bolt (of the appropriate O.D. and "Twist") and
Thread it, and using another smaller diameter bolt ,threaded to the inside of the BB ,emplace the needed strength spring and ball bearing inside.
(WHich is just what the engineers @ Bosch did.)

 

[Olivier]

Shocking!

That was what was inside my bolt. A wee piece of plastic. Wot cheap and wot a bad design...
It might had a spring but if so it flew never to be seen...
Now, this is trully crap on a bosch pump. No wonder they don't want to do it anymore... A piece of plastic there, on the heat etc... Who would have thought...

 

[spock500]

How on earth did you manage to get that apart Oliver?

I have just had a close look at mine, there's no spring or anything in the hole - it's just solid, no give at all when you put a large paper clip in.

I don't understand how these things function, bit of an anathema to me

 

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(not!)o.k.

[Good Job, Oliver on the Sleuthing!]

That probably means my (Precious... ,I say that in Sarcasm)601 070 01 46
has the same PLASTICO trash inside it.

('Will break out the Titanium Drill bits over the weekend and see.)

[At least I know the bolt diameters and twist of the threading
AND most importantly the Overflow "Pop Off" pressure.SO, I'll be able
to DIY a bolt/valve of the proper release PSI/Bar,with a METAL spring
and Ball bearing]

Here's the question on offer...
Did some engineer figure out the "Distortion Rate" of the PLASTICO part
under tensile stress and use that figure(s) to allow the manufacture of
this TRASH? (I.E.use the plastic instead of a spring)

 

[Olivier]

Got the Spring

I found the spring. Its teeny and it was all curled up and really hard to found as all fell apart quickly. I strech it a little to take the picture. It was looking like a bit of hair on the floor, that how small it is.
Still really crap design. Schockingly cheap.
Give me a ball bearing and a spring anytime, not this plastic insert crap.

 

[Olivier]

How on earth did you manage to get that apart Oliver?

I have just had a close look at mine, there's no spring or anything in the hole - it's just solid, no give at all when you put a large paper clip in.

I don't understand how these things function, bit of an anathema to me

If yours is not moving at all it mean its stuck. It should move about 1mm in and out. This is little but its moving.
Maybe your plastic insert as swell and locked inside? Its a cheap design.
I think the plastic insert should be one peice, not split.

 

[Olivier]

Just got the bad news from the diesel shop, he cannot get it

 

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O.K. Going on what Hunter suggested over on "PP"

"Get a Valve off of an old 123 or 126"
The overflow valve for the 124.133 (Older 300D W123 Chassis turbodiesel)
is 000 074 72 84
Two cross reference charts I found online. (The numbers starting "1-417" are
the Bosch numbers for the Overflow valve.)
This is the older style "Servicable" valve with a second smaller bolt (Removable without destroying the valve)
securing the spring and ball bearing.

AND, Yes... Thanks to your detective work and information relay I'm ordering two of the older style bolts Tomorrow.

 

[Olivier]

Cheers CI,
The bother is that the shop got me the 046 like the one below page 22:
http://www.ennisproducts.com/catalogs/diesel_injection_components.pdf
its a totally different beast then the asaka picture and does not fit...
To be continued

 

[Olivier]

I spoke to another shop and same story, the 046 they have is not the right one, its the one like on the link above.
There has been some mistake in packaging, here or the others.
Waiting on Bosch call back now.
Wot a story...

 

[Olivier]

Bosh said the bolt is not manufactured by them, it might have been long ago but the guy's not even sure of that.
When I said it had a plastic insert he replied that defenitly its not o Bosch part.
This is why I think all get confused as MB did a "special" bolt and there is no appropriate cross references.

 

[compress ignite]

The Bolt that you removed IS Definetly not Bosch

They're right (Your Bosch catalog people)
And so are you ,That's the problem with identification.

The bolt that you bought WILL fit an OM602 2.5 L
(I have Two on (2) different OM602 engines.)

The pictures in the LInks I posted are a response to Hunter's statement
that a 123 s or 126 s bolt will fit a OM606.
(I have no Idea,If,that is in fact true.)

Facts:
1.Bolt that Spock has is the correct O.E. Mercedes part #601 070 06 46
for the OM606.962
2.Bosch has not a cross reference for the correct bolt.
(That they did not make.)

Question: Do you know the Diameter and "Twist" of your original Bolt?
(I.E. M12 X 1.5 OR M14 X 1.5 )

 

[Olivier]

I did not bought the bold, it was not fit to purpose.
About the links I had the same but the engineer at bosch,he too, was not convinced it was correct.
The puzzle is solved, its a boshch pump with a cheap MB pressure valve that they manufacture them self in China or where ever cheap, then sell it at an extortion price for huge profit.
A total disgrace.
I found appalling that MB would charge that much for such a cheaply made valve, this doesn't even included the search to located the problem and the fitting.
How do MB owners go sheeply head down and pay that much to get robbed, this is beyond my understanding? Paying for the "status" to get blindly robbed, gosh...
I think I have the cheap solution with the non-return valve on ebay. Might be wrong, but I will give it a go.
Olivier

 

[AANDYY]

Like this what I did buy .

Seams to need quite a bit of force to 'open' it though.

 

[Olivier]

This is the one I got. Inside it has the same non-return valve as the lift pump, good solid engineering
got it from him:
8mm Fuel Non Return Check Valve one way petrol diesel on eBay (end time 07-Dec-10 20:50:46 GMT)
great seller.
Now Andy, why did you need a non return valve for?

 

[AANDYY]

It should stop my fuel flowing back to the tank when engine switched off.