pressure regulator shim???
Postmaster
Joined: Jun 2007
Posts: 2,795
Likes: 1
From: Rogue River, OR
I think that the pix is in relation to someone wanting to know where/how to raise the fuel pressure by the shim (BB) method.
You want to take your pressure reading at the schrader valve before the regulator is shimmed then again after the shim so you will know what increase you have gained. It's a good mod and I would imagine that most have shimmed their regulators by this method.
Rog
You want to take your pressure reading at the schrader valve before the regulator is shimmed then again after the shim so you will know what increase you have gained. It's a good mod and I would imagine that most have shimmed their regulators by this method.
Rog
Cargo Master
Joined: Jul 2006
Posts: 2,756
Likes: 38
From: Nampa, ID
PRO:
It raises the fuel pressure to where it should be, if it's currently low.
Engine idle is smoother.
Throttle response is much better.
Engine seems quieter (IMHO).
Slight increase in MPG (I went from 15.75 MPG to 16 MPG - no other mods)
CON:
It raises the fuel pressure to where it should be, if it's currently low.
Engine idle is smoother.
Throttle response is much better.
Engine seems quieter (IMHO).
Slight increase in MPG (I went from 15.75 MPG to 16 MPG - no other mods)
CON:
Last edited by IDMooseMan; Jan 26, 2008 at 01:49 AM.
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 226
Likes: 0
From: Emmett, ID
where would i find out how to shim? when i put my chip up to 70 and 90 horse my idle and my top end are starving for fuel.. and as cold as mornings have been here in idaho cold starts arent very easy either..
Cargo Master
Joined: Jul 2006
Posts: 2,756
Likes: 38
From: Nampa, ID
Where in Idaho are you? Search for "FPR Shim" and you'll have plenty of info.
FYI...If any of this stuff (from me or others) is helpful to you, feel free to add "Rep Points" with comments to individual(s) who helped you.
Click on the scales in the upper-right portion of the post you want to add points to, provide a comment, and click the button to submit.
FYI...If any of this stuff (from me or others) is helpful to you, feel free to add "Rep Points" with comments to individual(s) who helped you.
Click on the scales in the upper-right portion of the post you want to add points to, provide a comment, and click the button to submit.
Last edited by IDMooseMan; Jan 26, 2008 at 01:07 PM. Reason: Info about adding Rep Points
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 226
Likes: 0
From: Emmett, ID
i am in emmett. and ill start to do the rep points i didnt know what they were. heck i should have posting a lot of points. the last two weeks since i found this i have recieved tons of help!!!
Cargo Master
Joined: Jul 2006
Posts: 2,756
Likes: 38
From: Nampa, ID
Drop by my house in Nampa. I probably have an extra BB around somewhere. When I did mine, I went slow, laying out the parts in order and all that. I still finished in less than 20 minutes. That includes checking fuel pressure before and after the BB install.
PM or email me and I'll send you my phone number.
PM or email me and I'll send you my phone number.
Trending Topics
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 226
Likes: 0
From: Emmett, ID
my HPOP doesnt seem to be supplying enough pressure. i am having problems surging at idle and throwing codes at about 3000 rpm for undesirable fuel pressure (to low) maybe this shim could get me the pressure i need or i still need the HPOP.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Fords to Drive Before You Die
Joe Kucinski
3 Best / Worst Features Of The 2025+ Ford Expedition
Brett Foote
10 Ways Ford is LOSING to the Competition
Joe Kucinski
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 226
Likes: 0
From: Emmett, ID
FYI...If any of this stuff (from me or others) is helpful to you, feel free to add "Rep Points" with comments to individual(s) who helped you.
when posting reps what kind oh comment is necessary if any??? like how it helped or do you just post that sort of stuff in the thread????
when posting reps what kind oh comment is necessary if any??? like how it helped or do you just post that sort of stuff in the thread????
Playing in the Dirt
Joined: Oct 2005
Posts: 2,302
Likes: 1
From: Southwest Georgia
Originally Posted by farmer ford
my HPOP doesnt seem to be supplying enough pressure. i am having problems surging at idle and throwing codes at about 3000 rpm for undesirable fuel pressure (to low) maybe this shim could get me the pressure i need or i still need the HPOP.
The FPR spring gets weak over time and this allows the pressure to drop. Shimming brings the pressure back up (don't go over 80 psi). If you shim the FPR and your pressure will not come up, you probably have a weak fuel pump. Also clean the FPR screen. And check the connections on the ICP. A HPX may smooth out your idle.
I would do all of the above before I looked at replacing the HPOP.
Playing in the Dirt
Joined: Oct 2005
Posts: 2,302
Likes: 1
From: Southwest Georgia
Originally Posted by farmer ford
FYI...If any of this stuff (from me or others) is helpful to you, feel free to add "Rep Points" with comments to individual(s) who helped you.
when posting reps what kind oh comment is necessary if any??? like how it helped or do you just post that sort of stuff in the thread????
when posting reps what kind oh comment is necessary if any??? like how it helped or do you just post that sort of stuff in the thread????
As I understand it, the more you write in the rep points the more points it awards. It is also good to post how it helped so that others can see it, only the person that you repped can see the comments that you write in the rep point section.
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 226
Likes: 0
From: Emmett, ID
plowhand, sorry to ask but, whats the ICP and the HPX??? and as an update i shimmed the regulator. it started out at a steady 54 lbs give or take 5lbs. after the shim it went from a low of 60 to a high of 80lbs. it helped on the top end in that i could go to the yellow line without jolting and throwing a code. but it still jumps from 500 to 600 RPM 6 times when it returns to idle.
Playing in the Dirt
Joined: Oct 2005
Posts: 2,302
Likes: 1
From: Southwest Georgia
ICP (Injector Control Pressure sensor) located on the left (drivers) head inboard front, three wire connector. HPX (High Pressure Crossover) a line that is installed in the high pressure oil system from one head to the other to even out the high pressure oil system in both heads (the ICP reads the high pressure oil system pressure in the heads and sends this info to the PCM, since the ICP is only seeing the left head the pressure in the right head can be different causing a rough idle and uneven fuel delivery, the line lets the two heads even out the pressure. Check here: http://members.***.net/kcmdieselperformance/ford.htm scroll down for the OBS.
Your fuel pressure looks about right now. Did you clean the FPR screen?
Your fuel pressure looks about right now. Did you clean the FPR screen?
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 226
Likes: 0
From: Emmett, ID
thanx. i've been wondering about changing that. i'm getting enough money rapped up in replacing parts (CPS, Oil temp sensor, fuel pump, HPOP pressure regulator, etc) i might get this thing to run right just yet. ha ha ha ha
