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Discussion Starter #1
I have a obd1 dohc zc I am geting a code 8 top dead center sensor so I figured I would check timing first the 2 marks on the inside of the gears are lined up and flush with the top of the head and the outer ones are sticking up is this corect?
 

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B-series Destroyer
4g 4d civic
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913 Posts
Pop valve cover off.
Stick pins in the holes.
Reset bottom end to top dead center.
Replace timing belt.
 

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1996 Civic Type DX
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4,167 Posts
Using pins or even the OEM tools to hold the cams can still yield bad timing. I use a LED flashlight and shine it through the holes and line the cams up visually.
 

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had so troubles with timing before, inner marks is want you want to align, UP marks will be off inside a little. how bad a timing should be to get TDC cel? if the cel is random - probably bad harness, sensor to rotor gap too big with dizzy bearing loose, dizzy seal leaking a lot of oil, or a bad sensor if you're getting it all the time.
I had a weird issue with cyp sensor - the contacts in harness to ECU connector were corroded 0_o
 
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