[DMCForum] Re: Still more ignition crap...(positive results)

["content22207" <brobertson@xxxxxxxxxxxx>]

Did you have to take the timing scale off to remove the timing chain
cover?

Much maligned PRV has a nifty way to re-index it. On top of the block
are two plugs (pulley end). One closest to the timing chains goes into
the oil galleys. Other one is for locating TDC #1. Rotate the engine
to whatever is currently identified as TDC. Remove the plug and insert
a foot long 5/16" drill bit. An indexing hole is pre-drilled into one
of the crankshaft counterweights (#6?). If the bit drops into that
hole, your scale is positioned correctly. Otherwise, rotate the engine
up to 20 degrees in either direction until it drops in, then
reposition the scale.

Is there any chance you skipped a tooth when reinstalling the cam
shafts? Engine will never run right if you did. 

Bill Robertson
#5939

>--- In DMCForum@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote:
> Yesterday Mike C. and I replaced my plugs and wires. I did not install
> the pulse coil because if I do too many things at once, I'll never
> know what the cure was. 2 of the old wires measured "infinite" and the
> rest measured between 5k and .95mega-ohms. (almost 10k) The rotor
> resistance seemed about right but I replaced it anyway.
> 
> None of this made any difference. The car ran like crap all the way
> home. Blue coil, red coil, new ballast, old ballast, different
> symptoms and none of them good enough.
> 
> Today, I did yet more tinkering. I was curious if perhaps I had
> mounted the timing scale off on the engine when I put it back
> together. The timing was currently at 11 degrees from the Pittsburgh
> tech session. I set it to 15 degrees. Then I cleaned the ground for
> the ignition ECU.
> 
> This made a significant difference. The car runs -much- better with
> either the red, or blue coils. I can floor the throttle and accelerate
> strongly, but I suspect I'm still lagging a bit. The red coil doesn't
> have a "power drop-off" like it used to, but it does have a stutter
> under hardest loads. BUT I have to run it with a 1 ohm vs. 1.8 ohm
> ballast which is what it's supposed to use. I think it can handle it
> though. The blue coil runs better still, but there is still a brief
> stutter upon take off. It seems to give good power. I can pull over 55
> mph in 2nd gear, easily past 5,000 RPMs. I won't be doing that again
> though. Also, despite the fact that the timing is set for 15 degrees,
> there was absolutely no pinging or knocking, and mileage was good.
> 
> Lastly, a little bird called me tonight and informed me that the Bosch
> 18kv coil -may- not be perfectly compatible with our ignition ECU but
> a cure may be in the works. I need someone with an EE degree. Contact
> me off list.
> 
> Rich A.

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