harmonic balancer ?

[black cat]

what size hamonic balancer is suposed to be on a ty. the one i pulled off is a small 61/4 the one on my on my other 4.3 is the same diameter but much heavier. the one i pulled off my ty i think is off a 4,3 with a balance shaft. was it the wrong one. thks

 

[midnightbluS10]

Re: harmonic balancer ?

Are you 100% sure it's an oem piece and not aftermarket?

 

[matice00]

Re: harmonic balancer ?

the one i pulled off is a small 61/4 the one on my on my other 4.3 is the same diameter but much heavier.

The weight should not matter much, I have noticed different brands are heavier or lighter over the years. I could be wrong, someone correct me if I am.

 

[black cat]

Re: harmonic balancer ?

did some more digging. older model 4.3 86 to89 had a balancer that has the same center but the outer section is heavier and it measures 6 3/4. after 88-89 they made the outer section a little smaller and lighter and it measures 6 1/4. the timing mark on my other 4.3 will work accept for the indicator was at the top of the timing chain cover [12 o clock] the one on the ty is at 1oclock.so the tdc is off.and the larger diameter just hits the indicator . thks guys

 

[matice00]

Re: harmonic balancer ?

glad you got it worked out:tup: