so hows tuning going?
do the words hellish nightmare mean anything?
don had to start from absolute scratch. which ment redoing everything including re entering the info on the truck (which i forgot to mention a few things, so we catch them as we go). he did finally get it to move past the driveway now however, which led to a new problem. sometime after i replaced the wires and plugs, i could fell a vibration after a certain rpm (2500 and higher, no matter if it was doing a free rev, or doing a wot). im no expert at reading plugs, but i am not sure if one cylinder is behaving at the moment. my theory is this. if you have a balanced motor, it should run fairly smooth. take down one cylinder, and its a game changer.
i pulled all the plugs to see if there was one that looked different. what i did was, rev the motor up to 3000 rpms and hold it for 30 seconds then shut the truck off without letting the revs drop. here is what i found.
these first 2 pictures are from #6 cylinder.
all the rest look the same except #5
as i said, im no expert at looking at plugs, but #5 looks different to me. i also did a ohm test on all the plug wires, they range from 700 ohms (#5 cylinder ironically, and it is also the shortest wire in at about 14 inches) to around 1700 ohms (which is the longest wire.
finding why its vibrating is driving me nuts. and when i say vibration, when doing a free rev log (you start at 1500 and bring it up to 3000 in 500 rpm increments and hold it for 30 seconds) it is good enough to shake my laptop from the front edge of the seat and make it slide down to the back rest.
