Question about 1991 Oldsmobile Bravada

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1991 olds bravada timing question

Which notch on the harmonic balancer do you use for setting top dead center on number one piston, 1st or 2nd notch?

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I have a 1996 Olds Bravada with a 4.3L Vortec 6. The two grooved notches on the harmonic balancer are not used in timing as far as I can tell. Look for a small peg on the back of the harmonic balancer, and once found, you will be able to see it and line it up with the "v" marks on the timing cover. Keep in mind this is on the 1996, but I thought it might be the same since I had a similar problem of trying to figure out which marks to use until I found the peg. You should be able to feel it also.

Posted on Jun 03, 2009

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