update: head problems

[abatzis2@hotmail.com (Michael Abatzis)]

so i bought a digital multimeter today. turns out my "new" (~3mos) o2 sensor 
wasn't putting out any voltage. replaced it with the one i took out 
originally--it had a nasty hack job in the wiring. i was offended that that 
one worked, and my nicely crimped/shrinkwrapped one didn't. anyway, when 
exposed to atmosphere, the sensor puts out ~.12v (ignition on, engine off). 
my old sensor was black, which either made it fail, or is the result of the 
failure i guess. anyway, problem #1 solved.
#2-timing. took off the valve cover again, double checked cam timing. sure 
enough, when the cams are timed correctly, the sprocket is one tooth off. so 
i guess it was put on wrong. put everything right. now when i set the timing 
at 7' at the flywheel, it was ~13' at the sprocket (taking into account that 
the mark was a tooth off). this i don't understand. when the flywheel is 
tdc, sprocket was still where i set it (tdc+1 tooth), ie correct. weird. 
brett, was this what you were talking about? would the shaved head change 
the length of the timing belt by 6'? i doubt it at .012", but...
#3-idle. cured by 1 and 2 (and idle screw).  rock solid at 900rpm, though 
lump lumpy. no problems with stalling/rpm drop now though.
#4- unexpected problem. oil everywhere under hood. uh oh. hard to tell where 
from. all over back/side/top of engine. mucho on the valve cover, so i hoped 
it was oil cover. replaced, cleaned, didn't see it leaking from the head. 
yet. crossing fingers.

sooo. it now runs good, feels real strong above 5k, straight to red line. 
problem? it's no faster than before.  timed it on my normal stretch of road. 
  what do i have to do to get this faster than a stock 1.8? argh. i want to 
play with the adjustable cam gear, and maybe correct for that weird timing 
thing. where do i move it to shift the torque curve down? i feel like i run 
out of tach before i run out of power now. sorry for yet another long post, 
but at least it's mostly good news now...

-Michael Abatzis
Hotlanta! GA
1988 Scirocco 2L 16v RIP-->parting, prelim web site, but not taking orders 
yet: www.learnlink.emory.edu/~mabatzi/mikes_page1.html
1987 Scirocco 2L 16v...


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