Well there is a possibility that it just so happens a GP or 2 burned out recently before you did the valves. You say they test fine, how did you test them? I recommend you pull all 5 and apply voltage to them to be sure, sometimes the OHM test is misleading. Also be sure that your relay is sending about 11V to each GP.

Also, are you sure you didn't reverse the feeler gauge measurements between the intake and exhaust valves?

__________________
1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

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