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  #1  
Old 03-20-2014, 02:43 PM
sag sag is offline
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OM617a nozzel options.

I was wondering if anyone has ever tried using GM 6.5 nozzles in the om617 injectors.

I have read about people using om617 nozzles in the GM 6.2 and 6.5 so I was wondering if you could make gm nozzles work on the 617.

If so you can buy sets of 8 GM marine nozzles fairly cheap.

maybe gain some power with other mods?
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  #2  
Old 03-20-2014, 03:09 PM
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I would see if the pintles are 6mm vs. 5mm as your starting point.

There is a broad range of nozzles for the OM617.9XX application. You could use used German Boschs #240/, #261, #265, #1930, #315 and I am sure there are others.

#315's will flow about 15% more fuel, but you still have to deal with that extra fuel,, e.g., extra air, et cet.
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Old 03-21-2014, 12:39 PM
sag sag is offline
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Quote:
Originally Posted by greazzer View Post
I would see if the pintles are 6mm vs. 5mm as your starting point.

There is a broad range of nozzles for the OM617.9XX application. You could use used German Boschs #240/, #261, #265, #1930, #315 and I am sure there are others.

#315's will flow about 15% more fuel, but you still have to deal with that extra fuel,, e.g., extra air, et cet.
yea I plan on getting a after cooler and different turbo. I have a turbo off a 1990 5.9L Cummins but I think it would take for ever and a day to spool it.

were is a good place to get the nozzles you listed?

ill see if I can get the size on the pintles for the 6.5 GM nozzles.
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Old 03-21-2014, 01:13 PM
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Currently, there are 3 or 4 vendors in the USA which sell Bosios. Price various by up to 20-25% if you buy in bulk.

There is only "one" vendor selling Monarks in the USA. That person is pretty pricey, with high markup.

There are a few vendors on Ebay selling "Bosch", but the pricing on some of them leads me to believe they are Chinese knockoffs. The only way to tell is buy the nozzles and hold the plastic tube next to a flame and the real Bosch logo will show up in a light blue color. But, you're stuck with either the real McCoy or junk.

You can buy Chinese made nozzles for less than a $1.00 USD a piece, but not sure how they will hold up. Actually, shipping is more than the nozzles from mainland China. I investigated this route a year ago or longer and there was zero interest on any forum. I was ready to squeeze the trigger on buying 1,000 nozzles and no dice.
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Old 03-22-2014, 01:33 AM
sag sag is offline
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so injection pattern angle would be the big difference due to different chamber design?
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Old 03-22-2014, 11:59 AM
sag sag is offline
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Thanks for the link very informative.

so I guess bosio is about the best option?
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  #7  
Old 03-22-2014, 03:22 PM
sag sag is offline
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were can you get the #315 nozzles?

What's the full part number?

im having trouble finding them does anyone have a link to them?

thanks in advance
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  #8  
Old 03-24-2014, 08:40 AM
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Quote:
Originally Posted by sag View Post
so injection pattern angle would be the big difference due to different chamber design?
What engine an OEM is using a particular nozzle for does not make any difference as long as the spray angle and the pressure section diameter are correct for the MB engine.

As long as it is a 0 angle nozzle and a 6mm pressure section diameter you are good. The part numbers have the spray angle and the pressure section diameter encoded into it.
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  #9  
Old 03-24-2014, 01:53 PM
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Quote:
Originally Posted by greazzer View Post
You can buy Chinese made nozzles for less than a $1.00 USD a piece, but not sure how they will hold up. Actually, shipping is more than the nozzles from mainland China. I investigated this route a year ago or longer and there was zero interest on any forum. I was ready to squeeze the trigger on buying 1,000 nozzles and no dice.
I missed that-if you get your hands on XXL Chinese nozzles, and assume a 50% throwaway rate that would still be good. I'd try em' (once I get my engine in a car....)
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  #10  
Old 03-28-2014, 10:20 AM
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Quote:
Originally Posted by OM616 View Post
What engine an OEM is using a particular nozzle for does not make any difference as long as the spray angle and the pressure section diameter are correct for the MB engine.

As long as it is a 0 angle nozzle and a 6mm pressure section diameter you are good. The part numbers have the spray angle and the pressure section diameter encoded into it.
I'm using some 12 degree Citroen/Peugeot nozzles in the om603 right now and they seem to be performing admirably. Also tried some vw nozzles which seemed to smoke a lot more under load and some other ones I can't remember.

I tried to capture some high speed video pop testing various nozzles. This is played back at 1/10th speed.

Heavily used DN0SD265
https://www.youtube.com/watch?v=43k7cJxr1CE&list=UUR0qvI3jAbN7UelA21VzHPw

DN0SD265 with 15k miles
https://www.youtube.com/watch?v=JhGmClWfCqE&list=UUR0qvI3jAbN7UelA21VzHPw

DN0SD193 VW nozzle. This one made too much smoke in the OM603
https://www.youtube.com/watch?v=eEKFFqdvJ5g&list=UUR0qvI3jAbN7UelA21VzHPw

DN12SD290. These are the nozzles I'm using now. Other than some white smoke after cold start they seem to work very well in the 603.
https://www.youtube.com/watch?v=DEmw2ncNTBw&list=UUR0qvI3jAbN7UelA21VzHPw
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  #11  
Old 05-01-2015, 09:37 AM
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Nozzle catalog

http://www.sevendiesel.it/download/2010-09%20Polverizzatori.pdf
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  #12  
Old 09-10-2015, 04:59 PM
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So where is a good source for #315 nozzles or similar that's not from China?
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  #13  
Old 09-10-2015, 09:09 PM
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Originally Posted by PSM 6.4 View Post
So where is a good source for #315 nozzles or similar that's not from China?
I have one more set for sale currently in this batch.
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  #14  
Old 09-11-2015, 09:54 AM
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I have the solution for nozzle issues. I order from Greazzer! Easy-peasy. He's done me right.

Dan
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