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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1981 300 SD 213k miles "Stock for now"
1999 Super Duty 7.3L 113k miles
1981 300 SD 180k miles "Heavily modified" SOLD

........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 213k miles "Stock for now"
1999 Super Duty 7.3L 113k miles
1981 300 SD 180k miles "Heavily modified" SOLD

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 213k miles "Stock for now"
1999 Super Duty 7.3L 113k miles
1981 300 SD 180k miles "Heavily modified" SOLD

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..........

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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Brad
1981 300TD - daily driver
1963 Chevy II
2001 F-250 7.3 Power Stroke

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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1984 300SD Turbo Diesel 150,000 miles

OBK member #23

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........sounds to me like somebody.........with the proper pop tester.........and knowledge..........might have a service to offer...........???

Are they not a wear item? I mean, can you imagine just how many time they have popped in say 200,000 miles, especially if you are a person who is in stop and go traffic with a lot of idling. It would seem to me like they would wear. This is the first diesel forum I've been in where most people seem to not want to change injectors. Check this post out over here, and go to page two, post #15 for video! http://www.dieselplace.com/forum/showthread.php?t=78661&highlight=injector
Dave

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Currently driving a very clean 1985 300SD from the West Coast.

Here it is: http://asnowsquall.smugmug.com/gallery/1424687/1/67645377

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-justin

1987 300TD, 1987 300TD
2008 R32, 2000 Passat Wagon

if you look at my other posts regarding injectors you will see, that spray pattern and pop doesnt tell the whole story on injectors, I had two different bosch service centres test injectors in front of me at no cost and injectors tested great, for pop test and spray pattern! put bozio nozzles in myself ,my diesels a 99 E300d cured the noisy idle and quieted her down to off the lot style 7 yrs ago totally impressed !

I did not want to pay $180 to get new injectors but to me, it had to be done. Below is a picture off the old injectors. #3 and #5 are the worst. Would it make sense that back when I did my compression test, that #3 and #5 had the lowest compression? I also had to tap the #3 and #5 injectors out when the halves were dissassembled due to carbon build up.

Picture #1 is of the old injectors. #1 is at the top and #5 is at the bottom.
Picture #2 is of the #3 injector.
Picture #5 is of the #5 injector.

What do you guys think?

Attached Thumbnails

     

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1981 300 SD 213k miles "Stock for now"
1999 Super Duty 7.3L 113k miles
1981 300 SD 180k miles "Heavily modified" SOLD

They're in the same ball park as gasser multiport injectors to me... pintles get clogged, fitler at the top does, etc.

Every 100-150k I'd do them. I have a few extra sets to sell off then I can experiment.

I just wish I knew where to buy that adapter and gauge to build my own pressure tester... and of course, where to get the shims!

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

While I admire anyone who is gung ho enough to want to service their own injectors or build their own pop tester there are limits to what I would consider a good use of time. Diesel Injection service shops spend a lot of money on equipment and time using it. They also charge very little money to clean and pop test a set of injectors. I let them do my injector work. They know better than me what correct spray patterns look like and what to do if they aren't. I think I paid $50 to have my injectors cleaned and popped last time I had it apart. RT

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When all else fails, vote from the rooftops!
84' Mercedes Benz 300D Anthracite/black, 171K
03' Volkswagen Jetta TDI blue/black, 93K
93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K