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  #1  
Old 12-27-2006, 09:00 PM
DrewGerhan's Avatar
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Thumbs up I love Bosio Nozzles!!!

I finally got around to ordering new injector nozzles for my SD. I decided I'd try the Bosios from DieselGiant, since I've read the horror stories about the Bosch remans.

Before:
Typical light diesel smoke upon start up.
Sluggish off the line, but not that bad. (ALDA has been turned up)
Light nailing from idle up to 2500 rpm

After:
Almost no diesel smoke upon start up
No where near sluggish anymore, even when cold.
Very light nailing only at idle. Which I've heard is supposed to go away after a few hunderd miles of "breaking them in".
Much more power.

In short I would recomend the Bosio injector nozzles to anyone who has the original nozzles in their car. They breathed new life into my motor and gave me power that I never knew I had. You will not be dissappointed. Best $180 I've spent on the car.
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  #2  
Old 12-27-2006, 09:31 PM
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........no leaks where the two sections mate together??

........no elevated engine temperatures...........???
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  #3  
Old 12-27-2006, 10:35 PM
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Quote:
Originally Posted by Brian Carlton View Post
........no leaks where the two sections mate together??

........no elevated engine temperatures...........???
Nope, none what so ever. Is that a common problem?
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1981 300 SD 180k miles "Heavily modified" SOLD
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  #4  
Old 12-27-2006, 11:05 PM
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Quote:
Originally Posted by YoungBenz View Post
Nope, none what so ever. Is that a common problem?
It's occurred before. Can't comment on how common it is. Trying to gather more info from folks who have made the switch.

I'm contemplating it for the SD. I believe it's got some injector issues that I can't seem to resolve.
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  #5  
Old 12-27-2006, 11:13 PM
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Thumbs up

Quote:
Originally Posted by Brian Carlton View Post
It's occurred before. Can't comment on how common it is. Trying to gather more info from folks who have made the switch.

I'm contemplating it for the SD. I believe it's got some injector issues that I can't seem to resolve.
Thats what was happenign with me. I've done 3 diesel purges since I've had the car, March, and the nailing always seems to come back. It took me 2 hours to do all of them. I honestly did not think that they would make that much of a difference since I did not think my injectors were that bad but I was sorely mistaken. If you do decide do use Bosio nozzles, I can garantuee (sp) that you will not be dissappointed.
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1981 300 SD 180k miles "Heavily modified" SOLD
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  #6  
Old 12-27-2006, 11:42 PM
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Quote:
Originally Posted by YoungBenz View Post
Thats what was happenign with me. I've done 3 diesel purges since I've had the car, March, and the nailing always seems to come back. It took me 2 hours to do all of them. I honestly did not think that they would make that much of a difference since I did not think my injectors were that bad but I was sorely mistaken. If you do decide do use Bosio nozzles, I can garantuee (sp) that you will not be dissappointed.
I don't have any nailing.........but cylinders 2 and 3 are running a bit hotter than the others and I've got this irregular idle that's jostling my head..........
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  #7  
Old 12-28-2006, 01:31 AM
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Our '83 has them, it took about 500 miles to break them in, but they are incredible now. Engine is smooth, very powerful, very little smoke, and lunges with tons of power off idle...much better than with the old nozzles. I am contemplating putting them on my car as well at some point as mine has become sorta sluggish off the line and smokes more, though it could just be my secondary filter and valves....I'll be replacing/adjusting those very soon, so we'll see what that does.

As for temps, it runs at 80-81C 95% of the time, and has never gotten above 85 under any driving or outside temp conditions....same as with the old nozzles.

None of them leaked upon installation either....and haven't since.
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'05 C240 4matic Wagon - 153k - wifes (OC-154,500)
'01 E320 - 162k - Dad's (OC-163,500)
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Last edited by pawoSD; 12-28-2006 at 02:07 AM.
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  #8  
Old 12-28-2006, 01:56 AM
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Hey Brian,

I am sure that any leaking issues would be caused from an improper sealing on the threads due to improperly cleaned and not tightened enough.

I wonder if anyone knows a good place in the Boston area who can do a pop test?
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  #9  
Old 12-28-2006, 03:17 AM
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sorry to sound stupid but what is nailing?
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  #10  
Old 12-28-2006, 05:27 AM
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Like what I've heard so far, am considering doing this next season, will keep an eye here..... Don't know what nailing is.
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  #11  
Old 12-28-2006, 07:02 AM
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Interesting enough last evening I searched for Bosio and read about just every post. There were only 2 reports of problems...
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  #12  
Old 12-28-2006, 07:52 AM
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Exclamation Pop Test

Quote:
Originally Posted by taylorsyn View Post
I wonder if anyone knows a good place in the Boston area who can do a pop test?
Here's a link for ya...... http://www.boschservice.com/ServiceLocations/DieselServiceCenter/Diesel+Service+Center.htm

You should be able to find someone here.....Folks, please do not be afraid of the Bosch people.....I have always found them to be very friendly and helpful....example, here in WV there is only 1 certified Bosch Injection shop.....about 125 miles from me....I phoned them, asking about popping some nozzles.....they gave me the phone numbers of 3 shops closer to me, that aren't presently Bosch certified....also told me to try a Standyne product in my fuel before pulling my nozzles.....still have not pulled the nozzles......intend to, maybe next month.....I have a bit of nailing at idle....I think I may have a dribbler in my #5 cylinder.......

SB

Oh, yes....I forgot to mention, if you do go to an Injection Shop....ask to see the facility, and ask if you can watch.....it's really interesting, and you will learn much......
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  #13  
Old 12-28-2006, 08:06 AM
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I put the Bozio's in about a month ago. Big improvement on start up smoke and idle(at first). Man are these things noisy! I've driven it over a thousand miles and the nailing hasn't gone down any. The rough idle has come back especially when cold. I think my old wagon is just getting tired. Any ideas why the nailing has persisted?

Thanks
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  #14  
Old 12-28-2006, 09:44 AM
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I pulled out my original Bosch injectors just last week and tested them on my homemade pop tester that I made out of a grease gun.
They all sprayed a perfect stream and popped at the right pressure. The only problem I found was one dribbler that was corrected when I disassembled it and cleaned it out.
Now it's running great. I don't see how spending $180 on Bosio nozzles can make it any better.
I think that if more people would take the time to clean them as stated in the FSM they wouldn't waste money. Unless of course you have it to throw away.

Danny
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  #15  
Old 12-28-2006, 09:52 AM
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Quote:
Originally Posted by taylorsyn View Post
Hey Brian,

I am sure that any leaking issues would be caused from an improper sealing on the threads due to improperly cleaned and not tightened enough.
The leaking issues are caused by the two sections failure to seat properly. They are lapped to a 2 micron finish and it's the quality of the finish that prevents the leak. You can torque them until they snap, and, if the surface finish is not absolutely perfect, they can leak.
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