Installed new plug wires and distributor cap... tested vacuum retard/advance... cleaned crud-encrusted injectors and tested for good spray pattern... installed new injector o-rings and buckets... checked cold start valve for leakage... removed and thoroughly cleaned throttle body... installed new o-ring on idle screw... sealed vacuum leak in plastic intake tube... replaced cracked-and-sealed-with-electrical-tape 'connector hose' between plastic intake tube and throttle body... installed new O2 sensor.
Engine now seems to run OK but idle's a problem. With idle screw turned almost all the way in I can barely get down below 1K rpm by adjusting the CO screw lean. But then, when I do the dwell meter CO test per
I just removed the old Emico CAT. Can still see through screens but exhaust pipe upstream and down is caked with carbon!
Tomorrow I check timing again...could all the vacuum leaks being sealed have altered it? Will also install new Bosal CAT (jeez, what sloppy welds!).
Concerned about engine noise. Quiet enough at idle but when I open the throttle there's a hell of a rattling noise. I'm wondering if the timing belt tensioner is going bad. It's possible it has over 150K miles on it.
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