joe_out_west
06-02-2002, 02:20 PM
Can some one clarify something for me? When you adjust the AFM 3 teeth rich, you need to peel the plastic cover off of the AFM to adjust it right? Then you take a part the potentiometer and move it "3 teeth" rich, is this how the trick works? If not will some one fill me in? thanks
"Ok ready, first pull off the efi fuse for a couple of seconds, then reinstall it. Grab some Autolite #65 plugs, and side gap them at .048. Set the valve clearance to .011 cold. Install the factory carbed thermostat {Pappy: it's a 180* vs. 190*). Adjust the AFM 3 teeth rich (under 5000 a.s.l.). Start the motor, let idle till you reach operating temp. Set the timing at 16* "not short circuted," {Pappy: about the same as 8* shorted} then take it for a putt, re check the timing, and enjoy. Leave the airbox alone, for it's not a cause of starvation on a stocker, and don't worry about the muffler for now. If you're going to modify the exhaust, start with a header, and 2.5" headpipe."
A follow-up from later that day:
"... you pull the EFI fuse to start the ECU's regathering of fuel mixture readings, because you are altering them via the AFM. The #65's are a hotter plug, and will in this case create a more efficient burn. You WILL NOT detonate when the timing is set 16* NOT SHORT CIRCUTED, because the end reading when short circuted will be 8* advanced. The afm adjustment enrichens the motor aproximately 3cc. This is necessary due to the timing advance, which requires a proper mixture."
I found the AFM 3 teeth to be too rich for my high desert home (driveway is 5200 ft) and have backed it down to 1 tooth rich.
"Ok ready, first pull off the efi fuse for a couple of seconds, then reinstall it. Grab some Autolite #65 plugs, and side gap them at .048. Set the valve clearance to .011 cold. Install the factory carbed thermostat {Pappy: it's a 180* vs. 190*). Adjust the AFM 3 teeth rich (under 5000 a.s.l.). Start the motor, let idle till you reach operating temp. Set the timing at 16* "not short circuted," {Pappy: about the same as 8* shorted} then take it for a putt, re check the timing, and enjoy. Leave the airbox alone, for it's not a cause of starvation on a stocker, and don't worry about the muffler for now. If you're going to modify the exhaust, start with a header, and 2.5" headpipe."
A follow-up from later that day:
"... you pull the EFI fuse to start the ECU's regathering of fuel mixture readings, because you are altering them via the AFM. The #65's are a hotter plug, and will in this case create a more efficient burn. You WILL NOT detonate when the timing is set 16* NOT SHORT CIRCUTED, because the end reading when short circuted will be 8* advanced. The afm adjustment enrichens the motor aproximately 3cc. This is necessary due to the timing advance, which requires a proper mixture."
I found the AFM 3 teeth to be too rich for my high desert home (driveway is 5200 ft) and have backed it down to 1 tooth rich.