|
I would not put the CAT back on, at least not just yet. the smoke could clog it.
I suppose an internal engine part could be to blame (ring, valve guide etc), but 55,000 miles seems too 'inexperienced' for this. Just for kicks I might check this #6 ignition wire again as it may not be within spec.
If the valves are adjusted, the injector is working and the ignition system is fine, then I might consider a hotter plug for that cylinder. This will stay clean longer.
A compression and a leakdown check can pretty much answer any questions about internal engine parts. ALL these are tests you can do yourself.
------------------
'83 SC
|