I see that Cummins wants to know all kinds of stuff about the truck to see if these will work in a specific truck.

Is there a difference, or will the ones on ebay listed for a 98.5 - 2002 work for any application within those years ??

Just wondering...........

 

The ebay listed injectors 98.5 - 2002 will work in any one of those trucks, it will certainly work on your's. Get a set, you won't be dissapointed .

 

It should be noted that the RV275's wake up an HO engine much more so than the SO. I see that you have a 5 speed, so you have an SO. You will feel it a bit, but you will quickly become bored and there is nothing to give up by going with larger injectors. I highly recommend going bigger. Get the RV275's to use as bodies and then get a set of afterarket nozzles, (stage I, II, III or IV depending on your appetite for power) and put those on before you even install them. This is what I would recomend. Even a set of stage I nozzles will be almost twice the power increase of the RV275's alone when installed on an SO.


Kevin

 

600 have you done the nozzle work yourself? If so, did you verify sppring pressures etc, or just unscrew and screw the new ones on? How did you get them apart without hurting the body of the injector? I have been thinking about this myself but no one I know has done it.

 

Yep, its a piece of cake. What I did was clamp the hex portion of the nozzle holder in the vise, not the body of the injector. Now in this way you wont marr any part of the main injector body and the top of the injector is sitting straight up with the hold down slot right there. I used a piece of flat stock placed into the slot to turn the body. I did not verify spring pressures, since the RV275's were only installed for less than 10k miles. If you wanted to be more thorough about it, you could install all the new nozzles then take the injectors to a competent diesel shop to have them pop tested and shimmed if necessary.



Kevin

 

Can you put the nozzles on stock injectors?

 

Of course you can, no problem. But if your stock injectors have lots of milage, then I would in fact do the pop-off testing at an injector shop.


Kevin

 

The rv275 injectors do work well just as they come with a box like you have
or the Edge Ez as I have. I picked mine up on ebay from a place in Utah about
a year ago for $280.00 They were brand new. They call them 300 hundred
horse injectors but the Bosch part number was for 275's. I have $755 invested in
Edge Ez and the 275 injectors and truck runs great. If you do any more you
need a clutch . Probably not a bad idea now but will wait for some signs of
slippage.

 

Wher can you get the nozzles? I would loke to do that to my stockers and swap them back in then. Or would I get more power putting the nozzles on the 275's?

 

Other than the nozzles, there is no difference between the stockers and RV275's. Upgraded nozzle swap wll work in either.

 

b-d power sells the nozzles,thier pretty cheap,i thought there was more to it than just unscrewing and screwing new nozzles on.like 600 mega says go big.ive driven trucks with rv 275s and didnt notice anything,i think thier quiter and get more milage though,i got some 130hpxxx from b-d and i love em.ive seen nozzles on ebay to but dont know how much i would trust ebay stuff.get em from a diesel place then you can get help if you need it.

 

I started with the 275 hp rv injectors and with the ez they made towing my 5r a breeze.

As to just changing out the nozzles...... I personally don't like the idea of just switching nozzles. Saving a couple hundred dollars now may cost you several thousand dollars later. The thought of a tip coming loose or off and the resulting carnage, well....... to each his own. JM2CW. What ever you decide, good luck! Phil

 

If you are mechanically inclined, the nozzles are fine. My jammer 4's will be pop tested this week, hopefully all within 1 bar. And as far as a nozzle coming loose, I trust my torque wrench more than anyone elses ('cause I know where these sticks are going!) when putting the nozzles on.

Jason

 

How is a tip going to come loose and fall off?
Thats impossible, the hole in the head is smaller diameter than the tips retaining surface.
There is only a hole big enough in the head for the actual tip to stick through.

There is alot of misinformation being spread about these new tips.
Alot of it is vendors that sell or make other brands of injectors using scare tactics to keep out the competition.

If you guys want to change tips yourself it is not that hard.
You will need a vise, deep well 14mm socket or box wrench.
Also, you will need to pieces of wood equal size and a piece of card board or like material.

You will need to drill about a 3/4" size diameter sized hole between the wood pieces to simulate injector base size.
After you get the 2 pieces with the shared hole, next line the wood with cardboard and clamp tight with the vise.
The wood and cardboard keep the injector from getting marred from the vise.

The injector nuts took about 34lbs to break loose, so about 30lbs +/- to retorque should be fine.
Make sure your work environment is extremely clean and do not get debris inside the injectors.
Just remember how each one comes apart and do not mix parts between the injectors.

I used Diesel fuel to add lubricity and as a cleaning agent for re-install of the old and new parts.

Good luck.