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From what I've gathered, to turn the IP up you have to get the #1 cylinder to TDC and take the triangle cover off the side to access the 5/32 allen screw inside. I ve heard that a good amount of fuel comes out when you take that little cover off. My question is, how hard is it to get the truck restarted after you seal it back up? Am I going to have to bleed the injectors or no? I plan on only turning it up 1 flat since I dont have a turbo. I opened up the exhaust some and am working on a ram air setup and figured a little more fuel is justified. Will only 1 flat make any noticeable difference? I'm not looking to black the sky out here, just trying to weasel a little more power out of the old truck.
On the bleeding at Injectors ... Some will say yes, some will say it's a waste of time!
Crank it up, don't crank more then 20 seconds, let it rest for 2 minutes, should start the first time, mine do.
The IP does not have to be full, as long as there is enough in there to submerge it's internal pickup it'll start and run, the lift pump will fill it in short order!
i just did this and i just cyciled the key a few times and gave it a good crank and mine started...also i did not bleed the injectors. there is probly about a pint of fuel in the IP when you take the plate off. also ive been told that one flat is alot for these old trucks and especialy where we do not have turbos. ive been told either 1/4 of a turn at a time or even as little as 1/6. i went 1/4 and had good luck......also id get a friend 2 help because u will need to hold a small mirror to the side of the IP as someone turns the crank...trust me u will not be able 2 see the screw any other way!! ALSO there is another screw you should know of that others usually dont know bout...take the main fuel line out of the back of the IP unscrew the actuall nut that holds the line. inside is another allen wrench of the same size as the side pice. turn this 1/4 o turn CLOCK WISE!!!this also will help you pick up the ponys!!! good luck!!
well I might have to look into this second screw. I turned mine up about 1.5 flats or a little more than 1/6 of a turn. I got lucky, when I peeled my plate off the screw was right where it needed to be. Truck fired right up on the first try.
Is this other screw always in view or do we need to crank the motor over to find it?