TrollFromDownBelow wrote: ↑Mon Jun 26, 2017 7:42 pm
Okay, I will be the one to post the stupid questions, just to get the obvious out of the way....I'm sure you tested for all of this, but it will help level set everyone else's brains....
- good compression on all 4 cylinders (
good enough, I don't remember the numbers)
- good fuel pressure both at idle and under load (
28-36 )
- good vacuum as tested with a vacuum gauge (
18-20 overrun damn close to 0 on acceleration )
- proper valve lash (
hydraulic, preload set at 1 1/2 )
- air filter that isn't plugged (
NOOOO )
- coil that is pumping out proper voltage (
good 5/16" purplish spark )
- valve timing that looked heuristically correct from watching them open and close (
didn't check on account of the good idle )
- Temp sensor 2 that tested okay (
didn't test )
- AFM mixture settings good (
it liked to be left alone )
- strong battery (
eventually, yes )
- oil that isn't pure sludge
- plugs/cap/rotor in good working order (
yes )
- timing and dwell set correctly (
why, yes, yes, of course )
- dizzy that advances correctly ( good behavior down low, weak upper end,
40* BTDC vacuum and 28* centrifugal )
- good gas ( I think so )
- AFM wiper (not sure of correct terminology) that isn't worn out ( check and
symptoms were same with different unit )
- S boot in good condition (eg no funky cracks that may be partially sealed at idle, but may open up with some harmonic vibration at higher RPM's (
did not check )
- exhaust that is not restricted (although from the post sounds like you tested this) (oh,
we TESTED IT )