Hi Guys,
I'm going to treat Rag Doll to a new set of Injector Nozzles.

I see someone here has a line on some Bosch France Nozzles, which are probably going to be better than Indian Bosch Units. I wanted to know what kind of power increases I would see, and which Nozzles, if any would provide more power/smoother operation.

Of Course, anything is going to be better than what's currently in there, so I'm not sure what direction I'm going to with that, I wanted to get some feedback here.

Also, after replacing nozzles, is it worth geting them balanced and pop tested, or is that a moot point with new injector nozzles?

Thanks gang,
Dub

__________________
91 350SD
14 F150 Eco
19 Fusion Hybrid
11 GT500

I don't understand why someone wouldn't bother to test and balance the set. A Bosch service center is set up to do this easily, and it can make a big difference. It's also, (did I forget to use the magic word?) pretty CHEAP.

__________________
'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.

Good point. I was under the impression by one of the sellers of these that I didnt need to do that if I bought their nozzles. I dont see a point in removing it twice though.

__________________
91 350SD
14 F150 Eco
19 Fusion Hybrid
11 GT500

Do it once, do it right and move on to bigger and better things.

With new nozzles in injectors that perform to specs, valves adjusted, and clean fluids, filters and screens, you are well on your way to many miles of trouble free motoring.

Read about two micron fuel filters and the extended fuel system life they may provide. Run some searches here and on google.

I never said dont test them, I have always maintained that if you want to then by all means go for it. I have said that it is not necessary to do it, but again its your choice. Most injector problems are due to the nozzles not functioning properly. Fix the problem and well, the problem goes away.

I did not test and balance them in the '84 and it runs perfectly. Again like always its your call. If you only feel comfortable with testing and balancing them then do that. Never hurts to do it.

__________________
1981 300D 147k
1998 VW Jetta Tdi 320k
2001 Dodge Ram 2500 141k
1979 300D 234k (sold)
1984 300D "Astor" 262k(sold)
Mercedes How-To and Repair Pictorials
I love the smell of diesel smoke in my hair

I never said you said it

__________________
91 350SD
14 F150 Eco
19 Fusion Hybrid
11 GT500

I think we have a good consensus that the Indian Bosch injector nozzles are not manufactured up to the necessary standards. The new-old-stock French Bosch injector nozzles probably are manufactured to a good standard. The ones I have look like a space-age component - shiny like a mirror.

It is a bit more subjective to compare the Italian Bosio injector nozzles to the French Bosch injectors. I'm not qualified to comment because I've never seen the Bosio nozzles.

But I think you have little chance of going wrong with the French Bosch injectors if cost is not an issue - along the lines of "do it once and be done with it."



Ken300D

Disclaimer - I'm selling my excess supply of French Bosch new-old-stock nozzles. - see Parts section.

__________________
--------------------------
1982 300D at 351K miles
1984 300SD at 217K miles
1987 300D at 370K miles

i gotta break with the consensus sorry.the bad rap on bosch india is old news.my recently purchased bosch india nozzles tested uniform across the board for pressure and spray pattern and more importantly the car runs great.i say do not be afraid of these nozzles.im sure the higher ups at bosch have made ammends.

__________________
michael cole 1980 300SD gone now but not forgotten,87tdt,90 300te 4matic 95 e320 wagon

I have been expecting this and I am sure that Bosch will eventually come through with suitable replacements. Was there anything on the packaging that could be a clue as to whether a nozzle is older production or newer production?

there were some barcodes on the plastic tubes.i have kept them.ill check for production date

__________________
michael cole 1980 300SD gone now but not forgotten,87tdt,90 300te 4matic 95 e320 wagon

Hi,

I just replaced my set of nozzles in the 603 to fix a slight nailing issue in one my stock units. Figured on replacing them all since they never had been serviced siince new and already had 224k miles on them.

I used a set of bosio's out of the box from Dieselgiant without testing them mainly because all of the innards in my OE units were in very fine shape. My stock units ran very well before and I just wanted to fix a slight tick at cold start-up that bothered me (sounded like a Singer with a tick).

Results, My OE Bosch Germany nozzles were in excellet to near new condition, I mean almost no carbon on the seal washers or injector tips, just a small dust coat, amazing really for the life of these units and how hard I push them. So now they remain as a spare set.

The Bosios are beautifully made, quality appears to be on par with the German Bosch ones. Installation was easy and they fired right up after priming the fuel system. At first they ran just like my old ones did, good but with a slight tick. Well they are new...so the gal and I did a nice 500 mile weekend trip. Now that the Bosio's are broken in, they perform very well. My tick is finally gone, although now a lifter is rearing its ugly head.

Point of it all, I feel that my OE nozzles were in great working order, replacement with Bosio nozzles yeilded a slightly better running order right out of the box and after breaking in without prior testing. I would say that's pretty good for out of the box.

If you are going to use other Bosch nozzels or if your injector innards are damaged, worn shims, broken springs, then you should test and balance the whole set prior to use. If all else looks well, I'd say install the Bosio's and drive them for a few hundred miles.

Good luck

__________________
Stable Mates:
1987 300TD 310K mi (Hans)
2008 Jeep Grand Cherokee OM642 165k mi (Benzrokee)

In many cases the nozzles can be installed without pop testing and will provice flawless operation. However, if someone is experiencing poor idle quality, you might want to have them checked. It's ideal to travel a few thousand miles before the pressures are set. The nozzles need a little time to bed in.

I've used Bosio and Bosch. They both work well and I cannot say conclusively one is better than the other. I had my Bosio nozzles checked at a Bosch shop and the guy said they have a spray pattern somewhat different compared to the Bosch pattern.

You would have to look at them under powerful magnification to make a meaningful statement about quality.

I agree.
Those Bosio nozzles are fairly new and I don't think anyone has run them long enough to draw any conclusions on their quality.

DAnny

__________________
1984 300SD Turbo Diesel 150,000 miles

OBK member #23

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination

Bosio is one of many aftermarket nozzle mfrs. While the product appears to be of good quality, there is nothing exceptional about it, there's no top-secret R&D taking place at Bosio on diesel FI equipment.


Story