200 cid balancer question

[Anonymous]

I have reason to believe the balancer on my 81 Fairmont has slipped. I have another one from an 83. Is there any reason why these should not interchange? The casting number on the 83 starts "D8", so, I guess it is the same as a 78. Can anyone verify the timing notch/crank key orientation? With the timing notch at 12:00 o'clock, the crank key is between 7 & 8 o'clock. This is looking at the balancer from the front. Would hate to put another bad balancer on. Thanks in advance!

 

[AzCoupe]

They will interchange with no problems. One size fits all so to speak. If your worried about having a worn one, then replace it. Best place to buy a rebuilt unit at a reasonable price, is Damper Doctor

 

[powerband]

I ran in to a little problem with swapping a '71 170 into a 61 Comet. The dual belt groove balancer interferes with the fan unless I use the water pump nose extender which makes it interfere with the radiator. I have to put the single groove balancer from the '61 onto the '71 engine.

Thought this might be a factor in anyone swapping balancers, especially into early roundbodies. I would also appreciate the timing notch/keyway orientation request Fairmont200 asked about since I'm using older parts and the rubber sandwich is definitely rough on the older one.

Thanks,
Powerband
http://img.photobucket.com/albums/v296/ ... 0S_WEB.jpg

 

[powerband]

I'm moving this thread up again because I found that in FSPP's listing of the Harmonic Balancer it specifies for 200CID only. If you noticed my previous post I need to switch out the dual pulley Balancer on a '71 170 (C8XX casting) engine for the single pulley Balancer to clear the fan and still fit behind the radiator in a '61 Comet. The other Balancer I have is from a C6XX 200 engine.

Is their a difference between Balancers for 200' vs 170's??. It seems the more I find out - the more there is to find out!.

Thanks Powerband 8)
http://img.photobucket.com/albums/v296/ ... 0S_WEB.jpg