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tdc and timing

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jj2gdsm

10+ Year Contributor
166
0
Aug 26, 2010
riverside, California
my timing looks to be off and was wondering if i found tdc with a long screw driver and took it apart and then set the marks to the right points would it run better or would i ned to get a timing light.
 
You're all confused. Timing light is for the timing of the ignition, not anything mechanical.

The ignition timing should NOT be at TDC. If you grounded the timing pin it should be 5* BTDC.

Set the crank to TDC, and look at the cams. The dowel pins should be up and the timing marks on the cams should be aligned.

You can't accurately find TDC with a screw driver, thats what the timing marks are for.
 
Well engine timing and ignition timing it completely different if that is what your refering too. To properly set the ignition timing it would be a GREAT idea to redo the timing if you believe it is off or atleast verify that it is off.

You must retime the engine if your marks are off.
 
How do you know that the timing marks are off? (don't mean this in a condescending or rude way at all!)

+1

OP I don't mean to be rude, but when you're asking if you need to buy a timing light to set your valve timing, you should probably bring the car to a competent DSM shop instead of touching it yourself.
 
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