Smokes on startup...but almost none after. (5sfe)N/A [Archive] - Toyota MR2 Message Board

smokes, issue, related, seals, valve, smoke, pretty, specific, thinking, fixed, sludge, restart, engine5sfe, problem, elaborate, 5-9yrs, garaged, bought, checked, pieces, broken, catalytic, 68,000, startup, 5sfen/a, 1991, knocked, internals, start, worse, letting, shut, awhile, smoked, system, exhaust, reattached, changed, issuethe, filter

1991 N/A with 68,000. This car sat garaged for 5-9yrs. I just bought it and I checked the catalytic and it was all broken to pieces. I knocked out all the internals out and reattached the exhaust system. I have changed the oil and filter. The issue:The car smoked before and smokes a little worse now. If I start it after letting it sit awhile it smokes. If I shut the car off and restart it, it does not smoke. Thats a pretty specific issue. I was thinking it might be valve seals. What do you