Some replace on mileage, others on performance.

If my car starts well, idles well, has good power/mileage/exhaust should I leave 'em alone.

Seems that as many people have problems with new/rebuilt nozzles as old, and I hear almost no catastrophic failures (tip blowing off) that would strand a car, ...

So who replaces them and for what reasons?

__________________

Gone to the dark side

- Jeff

I replaced mine in my 83 300TD with a lot of mileage because (a) It smoked (b) the fuel efficiency was mower than anticipated (c) I knew nothing of car's previous history and (d) I wanted to do it. I had them rebuilt at a local diesel shop. Made a big difference in terms of mileage, going up from 19-20 up to 23-25.

__________________
Der Panzermann und Fraulein Fahrvergnuegen

1991 420SEL 201K "The Big Blue One"
1985 300DT 205K chassis/285K engine nee California emissions "Goldbug"
1983 300TDT 255K "The Womble"
1983 300 DT 214K "Sea Sprite"-Rear-ended a truck
1983 300SD 285K "The Donor" Gave his life so that others can live
1980 500SL Euro 105K "Der Panzer"

Why mess with a good thing?

__________________
Closing the store
Benzbonz.biz on your smart phone or tablet.

I think if you don't have any signs of the injectors being bad I would leave them alone. No reason to fix something that isn't broken.

__________________

I just had mine rebuilt, new car to me,and it had symptoms. 2 of the 6 werent spraying right.

Clean fuel filters and a good diesel Purge once in a while, and you really shouldn''t have to.

Thanks.
That's what I was hoping would be said.

__________________

Gone to the dark side

- Jeff

....let them be.....

Awhile back I phoned the closest certified Bosch FI calibration shop, asked if they would test my injectors if I brought them in....shop is about 150 miles from me....the shop owner told me....."use Standyne Performance Formula and save yourself some time and money"......he went on and told me of a couple of FI Calibration Shops that are a lot closer to me....

Here's a link... http://www.stanadyne.com/new/ppt/ppt_dfa.asp

I phoned the closest shop that the Bosch folks recommended (used to be a certified Bosch shop)...and they told me the same thing regarding the Standyne products.....

I run a bottle of the Standyne Performance Formula through my system every 4-6 months.....also have used it in my tractor, a D-5, and a Yanmar excavator.....you would not believe the results.....wonderful!!!!

I have also used the LM Diesel Purge.....if you are worried about your FI system......try either of these products, and use them on a regular basis....

For those folks unfamiliar with the Standyne name, they are an OE manufacturer of Fuel Injection components......

SB

__________________

Diesels:
'85 300D, "Max, Blue Benz", 155K, 27.0 MPG
'84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG
'77 240D (parts car)
'67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP)
Gassers:
'94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG
'85 190E 2.3, 148K....Parts Car
'58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG

and, while it did improve the smoke production, the rebuilt injectors after ward are what really seemed to improve my mileage.

__________________
Der Panzermann und Fraulein Fahrvergnuegen

1991 420SEL 201K "The Big Blue One"
1985 300DT 205K chassis/285K engine nee California emissions "Goldbug"
1983 300TDT 255K "The Womble"
1983 300 DT 214K "Sea Sprite"-Rear-ended a truck
1983 300SD 285K "The Donor" Gave his life so that others can live
1980 500SL Euro 105K "Der Panzer"

Tell you what. If you can be sure that it is not leaking or has bad spray pattern, leave it alone. Of course, you will never know till you take it out. Mine were running fine, or so I thought. checked them and 1 of them popped off at too low a pressure and had bad spray pattern. Other than that, the car seemed to run in good condition. I just did it at 120K for the hell of it. Wife noticed it was a little smoother and had more power. I noticed that I gained about 1 mpg.

__________________
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

is there a difference between stanadyne and power service?

__________________
2000 VW Jetta TDI with 213,000 miles and climbing
84 300D non turbo getting ready for wvo conversion

Power Service is a bit cheaper, and you can purchase it at most auto parts houses and at discount stores like WalMart.......Standyne can only be purchased at Diesel shops and FI Calibration shops as far as I know.....

as far as chemical composition, I haven't a clue.......

SB

__________________

Diesels:
'85 300D, "Max, Blue Benz", 155K, 27.0 MPG
'84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG
'77 240D (parts car)
'67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP)
Gassers:
'94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG
'85 190E 2.3, 148K....Parts Car
'58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG

Given how easy it was to get the injectors out and have them tested, I would do it again as one of the first things if I obtain another diesel. Also, when the injectors are out, it is the best way to check compression at the same time.

__________________
Der Panzermann und Fraulein Fahrvergnuegen

1991 420SEL 201K "The Big Blue One"
1985 300DT 205K chassis/285K engine nee California emissions "Goldbug"
1983 300TDT 255K "The Womble"
1983 300 DT 214K "Sea Sprite"-Rear-ended a truck
1983 300SD 285K "The Donor" Gave his life so that others can live
1980 500SL Euro 105K "Der Panzer"