Bosch adjsutable FPR?

[RSpengler]

I have a bosch Adj. fuel pressure regulator, well, the bottom of it is bosch, the top is a billet piece with an adjusting nut and bolt. It was on my truck when I got it, so I dont know where it came from. I think it came from ATR, since there was a bunch of other stuff from them on the truck when I purchased it. I took it off today when I was swapping my injectors and tried to take it apart to no avail. Does anybody know if the top can be removed and retro-fitted to a new FPR? Oh, the reason I am asking, is because Im sure its shot. I watched my fuel pressure bounce around and go down under boost, also, when I took the retaining bolts out of the side of the FPR, a bunch of rust and carbon and crap fell out of the holes...

On another note, I had a cracked pintle and all kinds of crap lodged in the pintle of one of my injectors... Im pretty sure thats what was causing my rough idle, combined with the faulty FPR. Ill let you all know how it works out when everything is swapped.
Thanks,
-Rob

 

[RSpengler]

Re: Bosch adjsutable FPR?

Just an update, I got the billet top off of the FPR, holy crap the inside of the FPR was all rusted to hell. I dumped a pile of rust out of the FPR body, the spring was so rusted it started to crumble as I depressed it. Anyhow, I went and bought a bosche 237 model, hacked off the top with a die grinder, drilled some holes for the retaining bolts, slapped some RTV on the bad boy, pressed the top on, and vwalla! Brand new adjustable FPR, $28.

On the downside, the FPR and new injectors didnt cure my crappy idle.
-Rob