SOURCE: need gapping info for toyota corolla AE-91 1.5l japanese domestic
The correct spark plug gap for the 1.5 litre engine is .032"
SOURCE: What is the spark plug gap for the 4agze mk1
If you don't have the manual then use a saw blade(usual blue colour that cuts metal etc)as gap thickness,always work this way.However this greatly affects performance and pull up speed,so if you're eager about this then look for the right manual.Hope this helps.
SOURCE: timing marks and how to set timing on toyota
Both 7afe and 4afe (engines for 93-97 Corollas) are non-interference engines. It's highly unlikely there is any damage to the valves.
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