1988 Toyota Corolla Dear Sir Been Tuning 1300cc 4k J Engine Station Wagon Since

1988 TOYOTA COROLLA
225 MILES
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Dear Sir,
I have been tuning my 1300cc 4K-J engine station wagon since 1988.I got it decarbonized recently. The job was satisfactory.
In the past when timing was adjusted with the Timing Gun I saw the timing mark on the crank pulley moving when I rotated the distributor to set 7 deg.advance.Now the timing mark does not vary when I increase RPM.The vaccum gauge reading is ok.The Distributor has two vaccum hoses.The engine performs well.
I appreciate your kind advice to rectify the problem.

Many thanks,
Leo Fernando
Sri Lanka.
Jan 14, 2013 at 11:48 AM
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