Crankshaft Pulley/Harmonic Balancer Wobble?

vinylengraver · 04-11-2018, 10:07 AM

When I had my car in the shop last week (for my PE install) they looked everything over and the car checked out 100%.
Except they mentioned that the crankshaft pulley/harmonic balancer appears to have some wobble to it.
No noises, no abnormal belt wear, no unusual behavior otherwise at this time, but according to the technician I should keep an eye on it.
I did some reading on the subject and compared what I see to what others posted and while there is some movement visible, I would not call it a wobble - I think it is simply doing its job by balancing out and cancelling vibrations from the crankshaft. I spoke to service people at my local dealer and they said all N55 engines will show some degree of "wobble" at the pulley.

The issue is that the part is only available from the dealer and the cost in Canada is $885CAD ($704USD). Yes, you read it right.
That is a lot of money for a pulley.

Does your crankshaft pulley/harmonic balancer seem to have any play in it when rotating at idle?
Or is it absolutely solid and perfect on all its planes?

vinylengraver · 04-12-2018, 10:38 PM

Took my car to the dealer this afternoon to have them look at it.
And got no definitive answer.
Which is good news, since they did not think it needs replacement... I guess...
At least they didn't try and make me spend any money, which they usually do.

Anyway, if anybody has anything to chime in or has any experiences to share on the subject of harmonic balancers and such, please don't be shy.

04-11-2018, 10:07 AM	#1
vinylengraver First Lieutenant 392 Rep 317 Posts Drives: 2012 BMW 135i Join Date: May 2017 Location: Langley, BC iTrader: (0)	Crankshaft Pulley/Harmonic Balancer Wobble? When I had my car in the shop last week (for my PE install) they looked everything over and the car checked out 100%. Except they mentioned that the crankshaft pulley/harmonic balancer appears to have some wobble to it. No noises, no abnormal belt wear, no unusual behavior otherwise at this time, but according to the technician I should keep an eye on it. I did some reading on the subject and compared what I see to what others posted and while there is some movement visible, I would not call it a wobble - I think it is simply doing its job by balancing out and cancelling vibrations from the crankshaft. I spoke to service people at my local dealer and they said all N55 engines will show some degree of "wobble" at the pulley. The issue is that the part is only available from the dealer and the cost in Canada is $885CAD ($704USD). Yes, you read it right. That is a lot of money for a pulley. Does your crankshaft pulley/harmonic balancer seem to have any play in it when rotating at idle? Or is it absolutely solid and perfect on all its planes?
	Appreciate 0 Tweet Quote

04-12-2018, 10:38 PM	#2
vinylengraver First Lieutenant 392 Rep 317 Posts Drives: 2012 BMW 135i Join Date: May 2017 Location: Langley, BC iTrader: (0)	Took my car to the dealer this afternoon to have them look at it. And got no definitive answer. Which is good news, since they did not think it needs replacement... I guess... At least they didn't try and make me spend any money, which they usually do. Anyway, if anybody has anything to chime in or has any experiences to share on the subject of harmonic balancers and such, please don't be shy.
	Appreciate 0 Quote