new injectors

[RBeard]

Ole' Red Mare has 320k on the clock, time for new injectors. Do I have to change any associated parts or just order 6 injectors.

 

[Chief USA]

With that many miles, I think I would change cross over tubes along with the injectors.

 

[petersonj]

@Chief USA makes a good recommendation. However, I replaced my injectors at 303,000 miles and re-used the crossover tubes. I think it is more of a personal choice.

If the fuel system was a common rail system, then I would replace the crossover tubes. From my understanding, the common rail fuel system runs much higher fuel pressure and the edge filters inside the crossover tubes are subject to tears in the fine screen. The filters cannot be inspected.

Our 24 valve second generation injectors that operate at a much lower pressure are more tolerant of foreign matter contamination than common rail injectors. The lower pressure also means it is less likely that damage will occur to the edge filters. That is why I re-used my crossover tubes.

- John

 

[Shelby Griggs]

I just had mine changed @ Oregon Fuel Injection and they did not change the cross over tubes, siad not normally necessary and being a Bosch rebuilder I trusted them. I had 335K miles or so, no noticeable issues but thought it time on their recommendation, they say average life on the 24v injectors is 150K miles.

SHG

 

[petersonj]

@Shelby Griggs , did you notice any significant improvement with the new injectors?

- John

 

[NIsaacs]

I just had mine changed @ Oregon Fuel Injection and they did not change the cross over tubes, siad not normally necessary and being a Bosch rebuilder I trusted them. I had 335K miles or so, no noticeable issues but thought it time on their recommendation, they say average life on the 24v injectors is 150K miles.

SHG

What injectors did you go with? I did change connector tubes this time, just because, 312k on the RV's. They last a long time. New Bosch injectors and tubes.

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[Shelby Griggs]

@Shelby Griggs , did you notice any significant improvement with the new injectors?

- John

Not really but just done, I haven't towed or really driven it more than the trip home from the shop.

SHG

 

[Shelby Griggs]

What injectors did you go with? I did change connector tubes this time, just because, 312k on the RV's. They last a long time. New Bosch injectors and tubes.

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New HO (245 Hp), same as it came with new.

SHG

 

[RBeard]

What is the advantage to upgrading to 275hp injectors. I'm ready to change mine soon, but am curious.

 

[NIsaacs]

What is the advantage to upgrading to 275hp injectors. I'm ready to change mine soon, but am curious.

Nice upgrade, 30hp and 90 tq. I like them because they are an oem Cummins engine rating. You will need a boostfooler and elbow to take advantage of them, if you don't have anything now.

 

[RBeard]

OK, I have a very old EDGE 3 position box. I'll go back with stock.
RB

 

[NIsaacs]

OK, I have a very old EDGE 3 position box. I'll go back with stock.
RB

The EZ box will do what is needed for the RV injector upgrade. They have the boostfooler built in and supply the boost elbow. So you are probably ok.

 

[RBeard]

Well I'm ready to pull the trigger. Besides 6 injectors, what other parts do I need to order. I'm not changing the crossover tubes. (i.e. any seals, gaskets, etc.)

 

[BigPapa]

Connector tube o-rings