Max Rail pressure for the CR F1 injectors?
03-30-2009, 10:39 AM
#1
Registered User
Thread Starter
Max Rail pressure for the CR F1 injectors?
So i sent my injectors (Flux4) to F1 and had them fixed by DonM.
One solenoid blew out, and another one was about to....
my question is, how much Rp is too much for these injectors?
As you can see in my sig, the truck has dual cp3s and a mp8 pressure box. I see 26500 max on the quadzilla RP guage, Is the gauge accurate? or is the rp sensor not able to show more then that? I thought it was well within the safe limit, but i guess it wasnt!
One solenoid blew out, and another one was about to....
my question is, how much Rp is too much for these injectors?
As you can see in my sig, the truck has dual cp3s and a mp8 pressure box. I see 26500 max on the quadzilla RP guage, Is the gauge accurate? or is the rp sensor not able to show more then that? I thought it was well within the safe limit, but i guess it wasnt!
03-30-2009, 10:51 AM
#2
DTR Advertiser
The problem really wasnt the pressure, it was the seats. When the seats leak, the system is overwhelmed with back leakage volume. The back leakage goes through the injector seat area and ends up under the solenoid as part of the normal design.
Dual pumps with lots of additional volume coupled to the added pressure and leaking seats is the culprit. The seats are all tight now.
If you were to reduce the throttle position slower after a hard run, that would help too. In other words, try and avoid abruptly removing the throttle from wide open to closed too quickly. I understand that safety is involved here and you should as well. Letting the throttle up quickly is sometimes needed and cant be avoided.
Dual pumps with lots of additional volume coupled to the added pressure and leaking seats is the culprit. The seats are all tight now.
If you were to reduce the throttle position slower after a hard run, that would help too. In other words, try and avoid abruptly removing the throttle from wide open to closed too quickly. I understand that safety is involved here and you should as well. Letting the throttle up quickly is sometimes needed and cant be avoided.
03-30-2009, 02:38 PM
#3
Registered User
Thread Starter
Thanks, i was waiting for you to chime in since the other threads got closed!
The motor is being installed this week
Is it necesarry to clean the fuel tank? before running the truck again?
BTW i drained the water separator on the airdog for the first time, but it didnt seem to have water in it.
What do you recommend?
About letting off the throttle slowly makes sense, and will try to think about it after a WOT run
The motor is being installed this week
Is it necesarry to clean the fuel tank? before running the truck again?
BTW i drained the water separator on the airdog for the first time, but it didnt seem to have water in it.
What do you recommend?
About letting off the throttle slowly makes sense, and will try to think about it after a WOT run
03-30-2009, 05:04 PM
#4
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With the fuel it appears you have been getting...I would just buy a new tank full of American Diesel and have it sent down to you...lol.
Clean it....better safe than sorry.
Clean it....better safe than sorry.
04-01-2009, 02:56 PM
#7
Registered User
Thread Starter
I wouldnt know.... DonM built them!
BTW The truck got ready and running yesterday. on the first startup, after the engine rebuilt, it ran rough and smoked lots of white smoke, for a couple of minutes, but it vanished as it warmed up....
What im a little worried about is that its still got the injector rattle/knock, under 10 psi boost! :S
Pod TNT/r SW7 on timing 3
BTW The truck got ready and running yesterday. on the first startup, after the engine rebuilt, it ran rough and smoked lots of white smoke, for a couple of minutes, but it vanished as it warmed up....
What im a little worried about is that its still got the injector rattle/knock, under 10 psi boost! :S
Pod TNT/r SW7 on timing 3
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04-01-2009, 03:22 PM
#8
DTR 1st Sergeant
04-02-2009, 12:32 PM
#10
Registered User
It seems like you may be getting poor fuel down there.. I would add something else to your AD setup for filtration and water removal. The filters they use don't beet OE spec for f/w sep. OE requires 95% of free/emulsified water removal and the AD one only does 50% of free water.. And their 2um filter is really a 5um absolute filter... Adding better filters should help you at those rail pressures.
04-02-2009, 01:23 PM
#11
Registered User
Thread Starter
RP at idle is around 830 psi
can i change the AD filters for better ones? or do i need a whole different setup?
No codes except turbocharger overboost sometimes and also a RP sensor code
can i change the AD filters for better ones? or do i need a whole different setup?
No codes except turbocharger overboost sometimes and also a RP sensor code
04-02-2009, 01:34 PM
#12
Registered User
There is one better f/w sep available for the AD (FS19594) , but AD has not stated if they think it will work with the system or not.. they argued the f/w specs at first, now they just ignore the whole fact, like they don't care...
I would suggest putting either that FS19594 on the pump or a FS1212 inline before the AD....
If you want true 2um filtration add a Cat 1R-0750 after the AD..
04-03-2009, 01:35 PM
#13
Registered User
I would be very worried about the RP sensor code. Which code is it? That could very well be the cause of the rattle, not to mention causing problems with the injectors.
Paul
04-09-2009, 04:33 PM
#14
Registered User
Thread Starter
Idle is 830 or 8300?
There is one better f/w sep available for the AD (FS19594) , but AD has not stated if they think it will work with the system or not.. they argued the f/w specs at first, now they just ignore the whole fact, like they don't care...
I would suggest putting either that FS19594 on the pump or a FS1212 inline before the AD....
If you want true 2um filtration add a Cat 1R-0750 after the AD..
There is one better f/w sep available for the AD (FS19594) , but AD has not stated if they think it will work with the system or not.. they argued the f/w specs at first, now they just ignore the whole fact, like they don't care...
I would suggest putting either that FS19594 on the pump or a FS1212 inline before the AD....
If you want true 2um filtration add a Cat 1R-0750 after the AD..
i meant to say 8300 psi at idle!
thanks for the filter numbers. ill try that!
ill check the code... cant remember on the top of my head, and the truck aint around right now
