TOMJ,

So the injectors will go out tomorrow ? How will they be shipped by the way ?

Thanks.....

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Audi TT

No, not tomorrow, TODAY (it's Monday already??)!

They're going USPS Priority mail. Hopefully will be there in a few days.

BTW, since these are just going to be in for a few days, re-use the old heat shields.

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1984 300D Turbo - 4-speed manual conversion, mid-level resto

1983 300D - parts car

1979 300TD Auto - Parts car.

1985 300D Auto - Wrecked/Parts.


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"If you don't know where you are going, any road will get you there". Lewis Carrol

I'm rebuilding the injectors on my 87 300D right now with new nozzles that I bought online. These nozzles are made in Turkey. Are those better than the ones made in India? They look quite polished but they vary in terms of how easily the pintle slides in the nozzle. Some pintles are really loose while others have considerable, but steady friction. Will this cause problems? Also these nozzles have some fiber crap on them. I wish the factory cleaned them better before packaging them.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL

Does anyone know if there are still issues with Indian made Bosch nozzles?

These ones are genuine, made in India but with French/German writing on?





..or



Thanks

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)

I am glad you resurrected this thread. I did not know the Indian Bosch Nozzles went back as far as 2001.

From what I have read most of the comments on the Indian Bosc Nozzles concern the DNS0 SD 24*/ Nozzles (I can't remember the last digit but I think it is 0).

I think greazzer who has be doing Injector work for Members and other is presently the one who has the most experiences with them. You might PM Him and have Him comment in this threads.

I believe I read concerning the Nozzles using the 617, 616, 615 Engines He rejects more than a few Bosch Nozzles.

The short answer would be that you won't really know if the Nozzles are good until they are tested.

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84 300D, 82 Volvo 244Gl Diesel

Thanks Diesel, message sent.

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)

I thought some folks maybe interested in the pop tester ordered a few weeks back.

The gauge is half the normal reading (0 - 200bar) for greater accuracy in the 105 - 135 area.

On first inspection it appears very good quality.

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)

It is pretty much the choice of Shims that determines the accuracy when compared to the other Injectors.

Commercial Pop/Injector Testers high because there is a few Injectors out there that open extremely high.

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84 300D, 82 Volvo 244Gl Diesel

I would recommend the more detailed gauge for MB type injectors, the needle moves very fast especially when in 'chattering' mode - took ma while to egt all six spot on.

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)

All I am saying is that Fuel Injection Shops use Commercial Pop Testers and they also warrant their work with no issues so that makes me think they are entirly adequate for the job.

Nothing wrong with using a different gauge.

Personally I do not like liquid filled/dampend gauges for this job. When I used a Injector/Pop Tester in a Fuel Injection Shop watching the action of the un-dampened Gauge Needle/Pointer was important. I would not have wanted anything to slow the movement of tne needle down.

One of the tests was with the Valve open you slowly pushed down on the Handle and you would watch the Gauge Needle rise slowly. What you wanted slowly to see was the Injector Nozzle not leaking and that needle to go up to what ever the Pop Pressure was the Injector suddenly open and the Needle very suddenly fall. And, if that repeated evey time you did the test your Injctor Nozzle had an extremly good area where the Pintel seats in the Nozzle.


And, in fact Commercial Injector/Pop Testers do not come with a dampened Gauges and as you have seen the Dampened Gauges cost about the same depending on what country they come from so I doubt if it is a cost factor.

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84 300D, 82 Volvo 244Gl Diesel

It's only my opinion from a home users perspective, just in case folks are thinking of building one

I am sure the pro's have this down to a fine art, my local Bosch shop uses a digital contraption housed in a large perspex case with lid.

It appears to record the different phases automatically similar to say a rolling road BHP test. What would be useful is a marker on the gauge which records the 'high' leaving a secondary needle in place. This is something I have on my compression tester.

Cheers,

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)

This is what I've seen as well. I guess being a techno-nerd I like this approach

We all have or own way of doing things. Perhaps I am just old fashioned.

The new nozzle spec is 136-143 bar (1927.2-2073.6 psi) To me you can be anywhere with in that spec and things will be fine. I am picky on the balancing between the Injectors because that can sometime show up as uneven idle; especially on a worn Engine.

When I did mine I targeted 2000 pis as the opening pressure I wanted as I have US made Injector/Pop Tester and there is a 2000 psi mark for the Needle to point to.

Is it better to be on the low or high end of the acceptable range? I don't know. A Work our policy was to get close to the upper acceptable range without incuring more time to do the job.

But, as an example if when you assemble 5 Injectors 3 of the Injectors came out at 1950 psi 1950 pis is what you were going to try to get the other 2 Injectors to put out. It is not the higher spec but it is with in spec and is what will get the job done the fastest.

At work we were picky about the balancing of the Injectors because you did not want a Customer coming back and complaing about an un-even Idle and have to warrant the job. That ment that a little extra time spent to balance the Injectores was worth it to avoid having the Customer Complain.

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84 300D, 82 Volvo 244Gl Diesel

I wanted to give a bit of feed back on the Indian supplied Bosch nozzles.

Normally we get to hear all the bad stuff with regard to overseas suppliers but glad to report not in this case.

First set are whisper quiet installed now in the W210, just ordered a second set (DN 0 SD 310) together with 30 shims (10 each size).

Cost of nozzles $150, shims $20 and shipping to UK $20. All in I thought that was a superb price given how difficult they are to source here.

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)