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200Tdi injector nozzles: Buyer beware!


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I have run a 300tdi pump on my 200tdi for a fairly long period whilst mine was being reconditioned. It ran the same to me as the driver but I don't  know if you would notice any difference  if the differences are minor?

Edited by reb78
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15 minutes ago, monkie said:

Was it a straight swap, you didn't have to make any adjustments to timing or anything? 

No nothing. I borrowed it from vulcan bomber here. We fitted it on the drive and just timed it up as normal using the timing pin. I probably did a few thousand (maybe 5000) miles on it but you wouldnt have known the difference when driving. 

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300/200 pumps are direct swaps, have also used 300 pumps on 200 engines, no difference in operation.

So from the data I can find so far, aside from some minor timing differences there seems to be no difference in the pumps internally. 

Crack pressures on 200/300 injectors seem to be the same - 200 then 280 bar

So if pump is the same, injector pressures the same, the slightly bigger nozzle holes would alter the spray slightly - maybe in conjunction with the modified pistons/combustion area it's part of the revision to remove some of the clatter when they changed to 300? 

 

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I just got off the phone with Bosch USA and neither the 200Tdi 300Tdi nozzles are available here. The tech service person said they are both listed as 'out of stock' which he surmised to mean that they no longer have access to them. He recommended I search the internet 😪

I have created a table with all of the DSLA145P nozzles so you can reference the different types.

nozzle table.xlsx

 

 

 

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Very useful thanks - so in summary we're stuck with slightly unobtainable genuine 200tdi nozzles, aftermarket 200tdi nozzles or 300tdi nozzles. 

According to my very fallable maths, the total area of the 300tdi five .26mm holes is 17% larger than five .24mm holes.  Seems like quite a jump but I wonder if theres a noticeable difference in operation.

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I still think this case is still very much open. I haven't proven the ebay nozzles to be fakes. I'm going to perform some tests to compare original (as far as I can tell) used nozzles, ebay nozzle, Eurocarparts nozzle, ebay 300Tdi nozzle on a 200 Tdi injector) for opening pressures and spray patterns... watch this space. (my tests don't involve angle/bench grinders :lol:)

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Just now, smallfry said:

Coward 😄 Clearly not a PROPER test then !

All joking aside, anyone have access to a Brinell ? tester ? 

Happy to sell you the nozzles at cost price with the proviso that I want to see you test them with a plasma cutter :ph34r:

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FYI, I reached out to Turbo Diesel UK and they quoted me a price of $58.86 per nozzle for genuine Bosch 300Tdi nozzles. I don't know if that is a good price or not, since I haven't researched 300Tdi nozzles at all, but so far they are the only genuine 300Tdi nozzles I have found on the web. @monkie I am eagerly awaiting the results of your tests!

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9 hours ago, Eightpot said:

Very useful thanks - so in summary we're stuck with slightly unobtainable genuine 200tdi nozzles, aftermarket 200tdi nozzles or 300tdi nozzles. 

According to my very fallable maths, the total area of the 300tdi five .26mm holes is 17% larger than five .24mm holes.  Seems like quite a jump but I wonder if theres a noticeable difference in operation.

I calculated the same 😅

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Funny - I messaged them today as well and got a price on 200Tdi nozzles - quoted £48+vat for genuine Bosch kits which include O rings/washers.  Also quoted £30+vat for DTP nozzles.  Not a bad price but the address checks out to be a residential house.   I have had similar prices from a couple of diesel parts specialists.

Also had a quote from Darwen diesels on 200 nozzels - £15.25+vat each for DTP brand.  I think at that price I might get a set and check them out.

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200tdi nozzles made by DTP have just arrived.  Compared to an old 300tdi nozzle the holes do appear smaller - possibly due to wear but I suspect they may well be the correct spec rather than rebadged 300 nozzles.  Will pop them in soon and test.

20210128_115127.jpg

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On 1/26/2021 at 8:59 PM, oneandtwo said:

Yes, I have a Hartridge tester.

If I can get the injectors and nozzles to you, would you be able to test them for us? I often go to Royal Cornwall Hospital for work so I may be able to drop them off (socially distanced of course).

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