Need Injectors...soon, like Friday?

[steved]

And to add... think you're already getting bad fuel? Here is what the one Petro (that I have used) is adding to their fuel:



ValvTect Diesel Guard Heavy Duty/Marine Diesel Fuel Additive

Multi-purpose

Cetane improver, Emulsifier, alcohol free

HFRR 696, 60 microns worse than baseline fuel

1000:1 ratio

3. 32 oz/tank

$2. 38/tank



I think this additive would make things worse?





steved

 

[betterthanstock]

You guys don't want to know what I'm considering... a 2500 hemi is looking better and better.

Actually, you got me thinking about converting the Cummins to run on gasoline. No, not a carburetor.

I'm thinking if the injectors and pump now use this huge pressure, that it makes water bubbles emulsified in the diesel "explode" in the pump and the injector tip, causing cavitation and corrosion damage, maybe it's time to go back to a low pressure system. Gasoline will burn in a diesel engine, if you retard the timing to account for the faster ignintion of gas. With these pilot injection, multi event injections, it is easy to make it burn gas. But the MPG would automatically drop about 10-11% ??? due to BTU/gallon differences.

Then the gas has very low lubrication properties. It would only need however, very low injection pressures, maybe 1000 PSI at full boost. Yeah, there's the fire hazard, and pollution, vapors... ... They make pressure washer pumps that can pump water at 3000+ psi, so I'm thinking pumping "wet" gasoline with alcohol and water (which is there in any alcohol)should be no problem.



Maybe bosch should start taking this water contamination more seriously, and design a centrifugal water separator, something that really works, and also less corrosion prone metals, maybe titanium injectors. That still leaves us, with current vehicles, in high danger of high $$$$ repairs on these engines.

 

[steved]

The fuel drain... in the tank?

I would assume that the fuel (and any water) would eventually get sloshed by the pickup assembly, and ran into the filter.

That is one thing I like about a recirculating system, it continually filters the fuel for both dirt and water...

steved

 

[steved]

Well, going to pick it up... lmills said it at least runs



I just got done reading an older TDR article on the compatibility of fuel additives with additized ULSD... I think I'm going to do two things... change to Stanadyne (they are noted to be ULSD compatible) and cut the dosage rate by about half (to prevent getting too much additive in the mixture).



I also just thought about that fuel additive study that was posted a while back. They probably only tested the effects of an additive on one type of fuel. And maybe the additive wasn't compatible with the additized fuel???



Wish me luck... its a long drive home. :-laf



steved

 

[lmills]

Wish me luck... its a long drive home. :-laf



steved

thats not even funny lol

 

[steved]

Well, it made it home... sorry, I had to...

Couple things... truck is as quiet and smooth as new... which leads me to believe some of this "problem" happened pre-FASS most likely... the failed #1 was just the final straw. The truck has not been like this for probably two years at least.

Those of you thinking your truck is "louder" than when you bought it (I remember a entire thread about it, I was one)... you can read this thread and probably expect the same kinda repairs sometime down the road IMO... you're probably driving a ticking (literally) time bomb...

lmills found probably 1/8 cup (he can verify) of water in the particulate filter of my FASS... not the water separator, but the HF6604. Granted that filter has been in place for 44k, but that shows that even a water separator ahead of the pump can still pass water. It also shows you that there is a lot of water in ULSD. The HF6604 still has quite a bit of "sump", but it doesn't leave you with a good feeling about stopping water. Per his advice, I will be changing my HF6604 on a 20k mile FCI.

I ran around 75mph on the drive home... that's around 2500 RPM, with a few WOT bursts for passing/merging. Truck definitely has more snort... and even the turbo whistles louder. It still smokes under hard acceleration, but I attribute that to the Flux 1s (nature of the beast).

Overall, best $$ I spent so far... highly recommend both lmills (Mid Atlantic Diesel) and Flux 1 injectors.

steved

 

[JCasper]

Glad to hear your truck is up and running again.



I too have a truck that's louder then it used to be, but I attribute that to the Smarty.



As far as Stanadyne goes, I don't have anyone local around here that sells it so I have found that on ebay you can usually get a pretty good deal on it.

 

[OPoole]

If anyone is looking for a new set of 04. 5 and up. I have 6 new mopar Part# 05135790AD

 

[Cattletrkr]

Couple things... truck is as quiet and smooth as new... which leads me to believe some of this "problem" happened pre-FASS most likely... the failed #1 was just the final straw. The truck has not been like this for probably two years at least.

Those of you thinking your truck is "louder" than when you bought it (I remember a entire thread about it, I was one)... you can read this thread and probably expect the same kinda repairs sometime down the road IMO... you're probably driving a ticking (literally) time bomb...

I'm going to bury my head in the sand and pretend you didn't say that.

 

[lmills]

ifff, you think that is the case, you are better to fix them now then wait till later. And no, I am not trying to scare anyone! I am just preparing you for reality. If Steve's injectors had been much worse, the would have probably had to have been replaced! All 6 were leaking and had signs of erosion and algae build up.

 

[JCasper]

ifff, you think that is the case, you are better to fix them now then wait till later. And no, I am not trying to scare anyone! I am just preparing you for reality. If Steve's injectors had been much worse, the would have probably had to have been replaced! All 6 were leaking and had signs of erosion and algae build up.

I think my truck is louder also, maybe I should set the Smarty back to stock for a few days and see what it sounds like.

 

[steved]

Yeah, I'm talking an almost completely stock truck... those running a chip/programmer, you're on your own cause my truck is stock! I do have the RockTech sensor, but that's not a significant timing advance.

Took it for a ride again today (to get fuel)... an it is eerily quiet. It is almost scary quiet... and smooth.

And whatever was wrong was also affecting the shift quality... it is MUCH easier to shift. The engine doesn't drop in RPMs as fast, nor does it require a significant input of pedal to "pop" it back up. I thought it was a clutch issue (or operator error), but it shifts so nice that I will probably take the wife out this weekend and get her behind the wheel.

steved

 

[Cattletrkr]

Anyone looking for Stanadyne additives, just go to the nearest John Deere dealer and pik up the JD brand stuff. IIRC it's Stanadyne in a different bottle.

 

[Cattletrkr]

This thread takes me back to the discussion I (we) had when I was pondering a rebuilt transmission. With the miles I have on the truck currently 191K) does it really pay to be spending relatively big bucks on preventative maintenance? I've been regretting getting the rebuilt transmission since it had 300 miles on it. I doubt I'll do something like that again.

 

[betterthanstock]

SO what exactly was done to your injectors, since you say it is still "stock", and the injectors were rebuilt. Just a cleaning/polishing with some lapping compound?



I honestly wonder if a little bit of abrasive in the fuel is not actually good at keeping injectors clean and free of deposits? Maybe 2 micron is too much.

 

[lmills]

Steve was referring to the fact that he has done no other mods to the truck. The injectors were upgraded to flux 1's while Don had them.

 

[Alphacowboy]

Steve, glad to see you got it back on the road.



I dont know if I would be so quick to blame ULSD though, I would suspect BIO way before I would the ULSD. From what I gather, BIO-Fuels are going to suspend water much easier than dino-fuel. What is the Bio-% around your area? I have seen anywhere from 2%-20% at pumps from MN to the east coast.

 

[steved]

Steve, glad to see you got it back on the road.



I dont know if I would be so quick to blame ULSD though, I would suspect BIO way before I would the ULSD. From what I gather, BIO-Fuels are going to suspend water much easier than dino-fuel. What is the Bio-% around your area? I have seen anywhere from 2%-20% at pumps from MN to the east coast.

There is no Bio around here... as I told lmills, I have avoided biodiesel like the plague because of some of the horror stories I've heard. The only time I ever see bio is on the road, and the LAST place I'd experiment with bio is 1000 miles from home.



The closest place around here to get bio is a HHO distributor, and it isn't convenient as you can only get B99 and its from an inside pump. Bio is not popular here at all... in fact, it is very hard to find.



steved

 

[steved]

SO what exactly was done to your injectors, since you say it is still "stock", and the injectors were rebuilt. Just a cleaning/polishing with some lapping compound?

I honestly wonder if a little bit of abrasive in the fuel is not actually good at keeping injectors clean and free of deposits? Maybe 2 micron is too much.

Stock as in no mods... no chips, no programmers, no excessive timing, no extra pressure. Until the Flux 1s (which I had to buy to get my injectors rebuilt), the most extreme "mod" was probably my Rokktech Sensor.

As it was explained to me, the seats were badly eroded and all of the injectors were leaking... and they were supposedly bad enough that they were almost NOT rebuildable. The erosion is from dirt...

I guess its a toss... you either get them done before the injector is trashed and spend $1700 on your injectors and hopefully have them rebuilt better than original, or you wait until their trash and spend $2400 on new STOCK injectors that will suffer the same fate.

My point about being stock was the fact that ALL that stuff can accelerate the problem...

steved

 

[steved]

One thing that I probably haven't pointed out is the use this truck sees...

It sees probably 75% open highway and 25% city driving. It will sit for hours at 65mph on the interstates when I'm traveling here and there. (I typically don't run faster than 65mph unless there's good reason, as in weather) In the daily 106 mile commute, it sees about 75% highway and 25% very heavy city traffic.

The truck tows very little... a 2k slide in and 1k trailer combo is about it. I have done two large trips with this combo... 3k miles to Key West and back, and our September vacation to UT/CO/AZ that was around 5500 miles. I have towed a max of 6k pounds... and I have only towed my huge 4800# 24-foot 5vr the 100 miles to get it home! Other than those "hard" miles, it sits empty 95% of the time when cruising down the road.

As previously noted, there are very little mods... all my mods were for mileage, not power. Mods to date: swiss-cheese intake, gutted intake tube, straight-through exhaust, Rokktech Sensor, FASS, bypass filter, and the DT kit...

And its not like I'm careless about where I fuel... all bigger stations, if not truck stops. I have not knowingly ran any biodiesel. I ran additive quite a bit (either Howes, PS, or Lucas). I also drain the water separator at every fuel stop.

So all-in-all, this truck has had a very easy life... 143k should not have been this expensive... its not like I ran it at a track, or sled pulled with it, or abused it otherwise.

steved