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How to tell TDC on b16a2?

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Old 11-10-2012, 04:35 PM
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Default How to tell TDC on b16a2?

I think I jumped a tooth while trying to adjust the tension, I want to mark sure it's all set before starting the car. I can get pics if needed.

My problem is my crank pulley does not have any white paint on it and the cam sprockets only have the UP mark (no inner markings to tell when they are positioned correctly to each other). Instead of white, the crank has 3 hash marks about 1.5mm apart from each other and a 4th has mark about 15mm from the 3.

Also, I fortunately marked the belt and sprockets just in case but they were not lined up at the time of the belt slip, how many cycles will it take until they line up again?
Old 11-10-2012, 05:08 PM
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Default Re: How to tell TDC on b16a2?

Try taking out #1 spark plug and getting the piston to its highest point?
#1 cylinder/piston/spark plug is always the one closest to the camgear.
Old 11-10-2012, 05:14 PM
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Default Re: How to tell TDC on b16a2?

Old 11-10-2012, 05:32 PM
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Default Re: How to tell TDC on b16a2?

Originally Posted by RonJ@HT
Old 11-10-2012, 05:43 PM
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Default Re: How to tell TDC on b16a2?

Originally Posted by CO671
Try taking out #1 spark plug and getting the piston to its highest point?
#1 cylinder/piston/spark plug is always the one closest to the camgear.
This^
Old 11-11-2012, 06:38 AM
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Default Re: How to tell TDC on b16a2?

Originally Posted by CO671
Try taking out #1 spark plug and getting the piston to its highest point?
#1 cylinder/piston/spark plug is always the one closest to the camgear.
Is it TDC every time #1 is at its highest point? I thought it took a few cycles to be at true TDC. At least that's the way I have to get our Subies TDC.
Old 11-11-2012, 06:49 AM
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Default Re: How to tell TDC on b16a2?

Originally Posted by WhiteOnRice
Instead of white, the crank has 3 hash marks about 1.5mm apart from each other and a 4th has mark about 15mm from the 3.
The one off by itself is the TDC mark. The other three are various degrees of advance.
Old 11-11-2012, 06:54 AM
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Default Re: How to tell TDC on b16a2?

Originally Posted by Bix VT
The one off by itself is the TDC mark. The other three are various degrees of advance.
Thanks!
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