C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

HELP! Timing mark is this it?

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Old Apr 26, 2014 | 01:55 PM
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Default HELP! Timing mark is this it?

I am positive my timing is off on my 89. Is the mark I circled in red the line that I need to match to 6 BTDC. It's kind of hard to see but if you zoom (might have to download and zoom in on ms paint etc) in you can see the line on the harmonic balancer. I just want to confirm this is the mark so I can put whiteout on it to make it visible with my timing light.

http://s599.photobucket.com/user/guno89/media/securedownload_zps8758d5c8.jpg.html?filt ers[user]=90664554&filters[recent]=1&sort=1&o=0[/URL]

http://s599.photobucket.com/user/guno89/media/securedownload1_zpsea093ff2.jpg.html?fil ters[user]=90664554&filters[recent]=1&sort=1&o=1[/URL]






Last edited by guno89; Apr 26, 2014 at 01:58 PM.
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Old Apr 26, 2014 | 02:01 PM
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Yes, that's it. To increase visibility, take some white out and mark it straight down the timing mark.
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Old Apr 26, 2014 | 02:04 PM
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Originally Posted by DanielRicany
Yes, that's it. To increase visibility, take some white out and mark it straight down the timing mark.
Thank you so much for the quick reply! On my way to walgreens now for a thin paintbrush cant reach it.
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Old Apr 26, 2014 | 02:33 PM
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might as well clean off that rusty timing tab while you're at it -



- just sayin' -

Last edited by Joe C; Apr 26, 2014 at 02:39 PM.
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Old Apr 26, 2014 | 04:37 PM
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Originally Posted by Joe C
might as well clean off that rusty timing tab while you're at it -



- just sayin' -
I cleaned it best I could and marked it. The timing was at 11 I dialed it back to 6 btdc, car felt better and was idiling at 6-700 instead of 800. Know I gotta see if this helps my atrocious gas mileage. Car def seemed more peppy.
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