How to time ZC DOHC?

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Old Sep 13, 2002 | 09:00 AM
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1990hondaHF's Avatar
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Default How to time ZC DOHC?

I know how to time a car I'm just not sure what mark to set it at...and what RPMs that engine needs to be at...???

Running clockwise there is a mark by itself and then three very close to each other. In my search I found out the one by itself is TDC...I'm guessing I set the timing to the one in the center? Thanks.
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Old Sep 13, 2002 | 11:32 AM
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Default Re: How to time ZC DOHC? (1990hondaHF)

Bump...and yes I searched.
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Old Sep 13, 2002 | 02:22 PM
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Default Re: How to time ZC DOHC? (1990hondaHF)

you want the engine at idle so the ecu is not adding any advance...

White mark is TDC.

Red mark is 16 DEG BTDC. The black marks are 14 and 18deg, respectively. You want it set to 16.

Dustin
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Old Sep 13, 2002 | 05:01 PM
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Default Re: How to time ZC DOHC? (dustin)

There are no colors left... so now what?
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Old Sep 13, 2002 | 06:19 PM
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Default Re: How to time ZC DOHC? (1990hondaHF)

same here i dont see any colors on my pulley.
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Old Sep 13, 2002 | 06:47 PM
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Default Re: How to time ZC DOHC? (lamchop0000)

On all D-series pulley's there should be a total of 4 marks.

3 of the 4 marks will be bunched together, while the 4th mark will be seperate from the other 3.

The 4th mark that is seperate is the white one - TDC

The middle of the 3 marks is the red one - 16deg BTDC

Their kinda hard to see, but look very closely and they are there. I think the color coding on everyone's car is worn away by now...
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Old Sep 14, 2002 | 08:15 AM
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Default Re: How to time ZC DOHC? (MrTodd)

Thanks. I thought the middle one was the one to set it to but wasn't sure.
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Old Sep 14, 2002 | 11:19 PM
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illi Adik's Avatar
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Default Re: How to time ZC DOHC? (1990hondaHF)

get a timing guy and set it to 16btdc or you could advance a degree for a little extra power
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