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bozio nozzles
While in Iraq I did some forum searching and learned of the "famed" Bozio nozzles. Seems that most like em and some don't. Overrated perhaps? Maybe they are, but I went ahead and purchased them anyways.
I've also read that some prefer to have the injectors pop tested and adjusted. Some say it doesn't matter. Again I took the route to have them professionally installed and pop tested. In my opinion it's better to let a professional diesel shop perform the nozzle install and pop test. While browsing forums I found a post where a guy in my area took his injectors and nozzles to a place called H&H diesel. So yesterday I decided to give them a call and see what kind of turn around and prices they charged. Their rate seemed fair at 25 dollars per injector and next day pick up. Shortly after the phone call I dropped them off and picked up this afternoon. The gentleman who helped me had an interesting bit of information. For starters he said that the old nozzles had very little wear. I did not know the condition of those nozzles because I bought the injectors used on EBAY. He also told me that the new nozzles had a very very good spray pattern. That suprised me since these people replace nozzles on all sorts of injectors. In fact he told me to stop by and tell him how the new nozzles performed after I install the injectors. He had never heard of Bozio before but was impressed. Here are a few pics of what I got back. Cleaned, lubed, and packaged injectors! They also threw in a set of heat shields! One might think they were new. From the looks of it the old nozzles are German made ones. I'm not sure if the Bosch nozzles made in other counties other than Germany have Germany printed on them, but these ones do. This leads me to believe that they were manufactured there. When I install these I'm also going to adjust the valves at the same time. I figure I can knock two birds with one stone. This will be the last engine work I do to the ol OM616. Since there is no turbo to tweak with that's about the only thing I can do besides routine maintenance. Right now I'm averaging about 30 MPG and once I get these nice injectors installed and the valves adjusted, I'll post my results The last pic is of the Fitch Fuel Catalyst I installed a few weeks ago. So far I'm impressed with it and the engine runs smoother with an improvement in fuel economy.
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1977 Mercedes 240D... 4 speed manual... soon to be host to a lot of mods.. 1984 Toyota 4x4.. Weber 32/36 DGEV carb, Offenhauser Dual Port intake manifold, TRD cam, MSD 6A ignition, MSD 8.5 wires, MSD Blaster coil, NWOR Tri-Y header, cat-back exhaust, NHK 3" lift springs, Black Magic electric fan, LC Engineering crank pulley,traction bars, LockRight locker, oil cooler, manual water temp gauge, oil temp gauge, vacuum gauge, and 394,000 miles on the clock with one motor change. |
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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? As long as they would add one additional commandment for you to keep thy religion to thyself. George Carlin (Wonder where he is now..) 1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won. pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt. |
#3
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I just had my Bosios pop tested after about 5k miles. The shop said they sprayed a little wide. But I'm not sure how qualified the guy was. He said that getting them within 5 bar was close to impossible for them. He said they balance to within 100psi.
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-E300d '99 350k -Suburban '93 220k -TDI Jetta '03 350k Sold -F250 '96 7.3 -Dodge Ram 12V -E320 '95 200k -E320 Wagon 1994 155k -300d Turbo '87 187k miles -E320 1994 200k -300d Turbo '84 245k (sold to Dan62) -300d Turbo '84 180k -300sd '80 300k -7.3 Powerstroke Diesel 15P Van 500k+ miles -190d '89 Non Turbo 2.5 5cyl 240k (my first MB) Tom's Imports of Columbia MO Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's. |
#4
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Well at least it doesn't seem like the guy knows what a "bar" is.... 5 bar = 73 psi
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98 Dodge-Cummins pickup (123k) 13 GLK250 (135k) 06 E320CDI (323K) 16 C300 (62K) 82 300GD Gelaendewagen (54K) |
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I guess I will repeat whad Cervan said as it looks like they did a Class A job on the injectors. And, what does the fFtch Catalyst do?
Also, please get a magnifying glass and see if there is a central hole drilled down the center if the pintle (15) tip and pull one pintel out and see if there is a hole cross drilled across the pintel (14). On my set of injectors and another set that I pulled from another car those little holes were completely plugged. Please see pic.
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84 300D, 82 Volvo 244Gl Diesel |
#6
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An important thing to note on nozzles for OM616 and OM617 is that the central hole in the pintle provides a pilot injection. This helps reduce soot and improve power. Over the years Mercedes enlarged the central hole and increased power. If the replacement nozzles don't have this hole you aren't going to get out as much power as you can with correct nozzles.
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green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday )( Kalifornistani emissons ) white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank) desert storm primer 63 T-bird "The Undead" (long term hibernation) http://ecomodder.com/forum/fe-graphs/sig692a.png |
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AFAIK that center hole is only used for these old engines. Post OM617 engines don't use it.
I'm glad to hear the Bosios have a nice spray pattern. I wasn't able to test mine before installation because my pop tester broke.
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#8
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really what is a Fitch Fuel Catalyst??? I hearing Good's and bad's....
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Current Garage 2008 Mercedes GL320 CDI 188k mi Repair/Work in progress 1994 S350 160k mi Garage Queen & prepping for repairs 2005 E320 CDI 203k mi Healthy & Daily Driver 1994 S350 357k mi Retried as parts car 1984 300TD 214k mi Blown OM617 Poss OM603 Swap?? Sold 1987 300SDL 200K+ 1994 S320 181K mi 2008 E320 Bluetec 127k mi 1999 S420 130K mi 1980 240D 360k mi 15+ Others that has come, stay and gone GONE, BUT NOT FORGOTTEN 1995 E320 SE 220k mi 1984 300SD 350k mi |
#9
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That is correct. However I would be very interested to find out how these center hole nozzles worked in a newer engine. I speculate that the switch to the non center hole nozzles was an economic decision.
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green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday )( Kalifornistani emissons ) white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank) desert storm primer 63 T-bird "The Undead" (long term hibernation) http://ecomodder.com/forum/fe-graphs/sig692a.png |
#10
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Actually in my ex 87 300D I experimented with the Bosch 240/ nozzles which are for the OM616/7 engines. There wasn't much difference. Slightly quieter but more smoke. I don't miss the hole. It gets clogged easily.
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#11
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I am replacing my French ones with Bosio units. I checked the French OEM ones and they didn't have any center holes. I know they were original because I got the car at 50K and it was never changed.
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#12
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Quote:
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84 300D, 82 Volvo 244Gl Diesel |
#13
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Nozzle Basics
The Original 'type' nozzle as fitted in the late 60's for the 615/6 series engines was the DNOSD220
This was a 'straight' pintle nozzle, and No Hole.... The central-hole Pintle nozzle is the DNOSD240/ type. They didn't alter the size of the pilot-injection hole in the 240/ nozzle at any time--If they did, It wouldn't be a 240/ nozzle anymore! I have seen loads of these 240/ nozzles, many very old, and some newer and I have Never seen one with a blocked hole!! The '240/ nozzle was developed to reduce Noise, 'Diesel-Knock' and smoother idling over the '220 nozzle, and is recommended as a replacement for any M.B. vehicle using the earlier DNOSD220 nozzle where complaints of excessive Noise were found... The later nozzles like the DNOSD261 and DNOSD265 use a different technology to achieve the same thing,-- And More... These later types are known as Throttling-Pintle nozzles. The flat-cut on the side of the pintle-needle can be tailored for different amounts of fuel delivery at given lifts, meaning that Torque can be altered due to fuel delivery Rates by changing the 'slope' and width/angle of the side-cut flat on the pintle needle.... These later nozzles are more sensitive to mis-adjustments in their 'pop' pressures, due to their 'throttling' nature.... There would be no advantage to be gained by replacing a later type '261 or 265 nozzle with the 240/ type.....
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http://i190.photobucket.com/albums/z...0TDnoplate.jpg Alastair AKA H.C.II South Wales, U.K. based member W123, 1985 300TD Wagon, 256K, -Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog. W114, 1975 280E Custard Yellow, -Great above decks needs chassis welding--Really will do it this year.... |
#14
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Quote:
became DNO SD 240/. As far as nozzle plugged or not plugged; each persons experiences are different. The last set of injectors I pulled from the Junk Yard came out of a 82 300SD. When I pop tested them 4 out of 5 seemed good until I looked and saw that the central holes were plugged. It may simply be that the car was neglected and I believe it had close to 300,000 miles on it. I think that if you do that Diesel Purge ounce in a while it would keep the holes clean. Another comment is that the instructions on cleaning the nozzles shows using special tiny wires to clean out the holes so the holes must get something inside of them. Here is the tech info top section of the first page: http://www.pauldrayton.com/uploadfiles/merc/Service/W123/w123CD2/Program/Engine/617/07_1-135.pdf
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84 300D, 82 Volvo 244Gl Diesel |
#15
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I wouldn't be in too much of a hurry to get one:
http://askville.amazon.com/fitch-fuel-catalyst-work/AnswerViewer.do?requestId=4602986
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87 300D 265Kmi Factory rebuilt crate 603.96x engine at 200K |
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