I tried to search this but i couldnt find anything on it. I met an old buddy of mine list night at a local pub. and we got to talking about our trucks. He was talking about some kind of modification to the pressure regulator by stretching the springs in it or something? It was way to loud to go into detail with him about it but does any one here know about any type of mod or free mod to the pressure regulator?

-dave

 

Found this on ford-trucks.com i think this is simular to what he was talking about.

""Get a regular BB, wait till your engine cools some and take the black cover off the top of your motor. This requires a 1/2 in deep socket and ratchet. There are 3 nuts on the cover. Next look at your fuel filter bowl and just to the right at the front will be a brass 19 mm plug on the fuel regulator. You will want to place a rag below this plug in case you drop anything. Next, remove the plug and place it on the top of your fuel filter housing using a 19 mm socket or wrench. You will now see a little spring that is exposed. Take a pair of small needle nose pliers and grasp the spring and pull it out of the regulator. Place it by your plug noting the way it came out. You will want to go back in with the same end that came out of the regulator side. Next, take a pencil tip magnet and be sure everything is clean on the magnet (we don't want metal shavings in there)....place the tip of the magnet in the hole and it will pull out the little tri-angular plunger that regulates the fuel pressure. Take the plunger off your magnet and look at the end of it. The end that has the hole is where you want to place the ball bearing. Take your ball bearing and drop it in the hole. When I did it the ball just fell in the hole. Take a little punch and make sure that it seats in the counter bore of the plunger. Not with a hammer, just pushing on it by hand will suffice. Next, make sure everything is clean and place the spring back in the plunger the way it came out. Place the plunger back into the regulator. The tri-angular shape will "FIT" into it's respected groove. DO NOT FORCE IT. Turn the plunger until it slides right in. Next, take the 19 mm plug and coat the o-ring with some oil or light grease so you will not damage the o-ring. Next, note the nipple on the end of the plug where the spring is centered. Be sure to get that nipple into the hole on the end of the spring or you will bend the spring and you have trouble. Push the plug toward the threads in the housing as it will be harder to push now, and screw your plug back into the regulator. DO NOT CROSS THREAD THE PLUG. Next tighten the plug back down snug. DO NOT OVERTIGHTEN. Now its time to do the;


Fuel Regulator Screen Cleaning

The fix is simple. Take off the cover over the fuel filter, 1/2 socket does the job. Place a towel or shop rag under the fuel regulator!!!! There are two 10 mm bolts just to the right of the fuel filter, take both out making sure you put them back the way they came out. Gently pry the fuel regulator away from the fuel filter housing, making sure you don't drop the o-ring. You will see a small screen about 1/4 inch. Using a small screwdriver or q-tip w.out the cotton ball on the end, wipe the screen and then put everything back together. The material you get off the screen I have been told is from o-rings. The fix will only take 15 to 20 minutes. If you find the regulator is blocked, clean it, install new fuel filter, and it shouldn't need to be done again for 12 months.


<!-- / message --><!-- controls --> Replace your black cover and you are ready for a test drive to see if you made any difference. You should definitely feel a difference in throttle response. You will actually have more boost pressure. ""

 

we shim it.its safer...what happens when you over streach the spring???

http://community.webshots.com/album/38099902LAqFDW

 

I used a small screw, with a head about 0.90". Supposed to take pressure from 60-65 to 70-75. No gauge to check. This helps the cackle, as does the cackle cure kit, HPX.

 

how big of a difference did you guys notice in power/performance? also did you blow more smoke before you turbo gets spooled?

 

ron, what do you think about using the BB inside the fuel regulator?

 

Whose got a write up on the fuel shim mod? I've been hearing about it from time to time, but never saw anything regarding steps...

hhmmm... Sounds like a guzzle-like write up is needed (if there ain't one already!!)

 

my first post joe..comes with pix.. instructions just below the pix...there is a link in my mod's and fixes link in my sig..

dzzavid i havet done this mod yet..not sure about a BB..get fuel PSI gauge and give it a shot...the let me know..

 

will do, thanks for the advice, now how bad do i want to do this its getting kind of cold out in the garage...

 

DUH.... Okay, I thought that was just for something to do with a spring problem (didn't read close enough). Very well done, and much simpler than I thought. I have to go in that very line and replace the seal anyway that I kluged up a few months ago when I installed the CCK...