Looking for some help help identifying this washer

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kylefav390
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Looking for some help help identifying this washer

Post by kylefav390 »

So last night I was in the process of mating my head back to the block. I found this washer in my sandwich bag that I used to store all the hardware for the cam gear and associated hardware, but I have no idea where it came from. Its warped and seems to be that way on purpose. I'm wondering if it came from the balancer or the crankshaft nut and I just happened to put it in with the cam gear for some reason.
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(also bonus if you can tell me what those ear shaped washers are too)
ron
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Re: Looking for some help help identifying this washer

Post by ron »

The "ear shaped" washers are from the driveshafts.

To identify the other washer would need inner and outer diameter and thickness.
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kylefav390
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Re: Looking for some help help identifying this washer

Post by kylefav390 »

Thanks. I’ll try and get some more photos/measurements tonight
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Re: Looking for some help help identifying this washer

Post by GRNSHRK »

Me thinks you hit the nail on the head regarding that giant Bellville (wavy) washer :-k

Been a long time, but I seem to recall that washer being installed behind the "big honkin' nut" on the crankshaft that holds the harmonic balancer in place, with about a million foot pounds of torque #-o

But like Ron said, the ID measurement will give somebody the ability to match up to the end of the crank [-o<
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Brucey
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Re: Looking for some help help identifying this washer

Post by Brucey »

a Belleville washer is strictly speaking a disc spring, i.e. a slightly conical washer. That is really a 'wave washer' although I am sure it has other names too.

The crank hub washer is #6 here

http://2009.bmwfans.info/parts/catalog/ ... on_damper/

I agree the two-holed washers look like the ones on the driveshaft flanges, but I wonder if there is another place where these are also found?

cheers
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Re: Looking for some help help identifying this washer

Post by bpoliakoff »

33211209543 Called a "reinforcement" and goes under the bolts that hold the shafts to the output flanges on the diff
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kylefav390
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Re: Looking for some help help identifying this washer

Post by kylefav390 »

Brucey wrote: Wed Sep 12, 2018 11:40 pm a Belleville washer is strictly speaking a disc spring, i.e. a slightly conical washer. That is really a 'wave washer' although I am sure it has other names too.

The crank hub washer is #6 here

http://2009.bmwfans.info/parts/catalog/ ... on_damper/

I agree the two-holed washers look like the ones on the driveshaft flanges, but I wonder if there is another place where these are also found?

cheers
That seems to be the right one. Thanks again!

For posterity's sake here are the measurements I roughly gathered.
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