to pin crank or not
10-09-2013, 02:50 PM
#1
Racer
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Member Since: Sep 2011
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to pin crank or not
my harmonic balancer recently started walking off the crank so I'm going to replace the pully with an underdrive unit and ARP bolt. is crank pinning very important for non forced induction.
10-09-2013, 04:20 PM
#3
Instructor
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Location: Siloam Springs AR
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You wouldn't want to go back in there and take it apart again if it did become a problem. Its quite a bit of work to get in that far. Just one more thing you can cross off the list of things coming back to haunt you later.
10-09-2013, 05:08 PM
#4
Team Owner
10-10-2013, 03:03 AM
#6
Team Owner
Plus, it's not expensive. Do it. 
10-10-2013, 06:12 AM
#7
Burning Brakes
I was a little undecided on pinning mine. Ended up pinning it, as others have said, since I was in there anyway. Added $125 and total peace of mind to the job. If my original had started "walking" as you say yours has I would definitely have pinned it. If you mean it walked between the balancer and the crank and not the rubber hub, then there will be some damage to the crank snout. Could be as small as 1000/th's but there will be some. No way I would do that job without pinning the new one.