FSA wave spring washer

Dirty_Conky

This is my first post and I would like to say Hi to everyone.
Maybe You can help me with this issue:
during a small road trip my crank fell off of my FSA bottom bracket. What i didn't notice then I've had to loose wave spring washer. Now my crank is keep coming loose no matter how hard i tightened it. I have FSA Comet crankset, 1x11, 32T and my bottom bracket is megaexo MS187. I've checked the manual and it says I need "MW454 Wave Spring Washer" but since I'm living in UK I can't really find it nowhere (found on american e-bay tough). So, my question is, can I use different model for it? My mate told me if i match id (which is 24mm) should be fine cuz all I need is some tension.
Can i use for example this model:
http://bit.ly/2CItY7N
It has easy access to get it. I've also found this baby on amazon, would that be okay since model above is for different crankset?:
http://amzn.to/2E9DwoD

Thanks to everyone who has patient.

Stay safe, peace!

The Rookie

Yep, will be fine.

gooner-at-law

Just order for pickup from EVANS cyles store....saving you postage price.

https://www.evanscycles.com/fsa-bb30-sp ... nyEALw_wcB

Dirty_Conky

NIce one lads, I will give a try

02gf74

My understanding is that wave washer is there to prevent excessive preload on the bearings as the crank bolt is tightened.

Generally when a crank is ridden with a loose bolt, it deforms so whilst the deformation is not visible, it will never be held in place again, certainly was the case with square tapered BB.

Hopefully the ww will cure the problem but don't be too surprised if it doesn't, you can try using thread lock on the bolt, way way back I fixed my crank using 2 part epoxy on the BB square taper.

Dirty_Conky

Thank You all for sharing. Sharing is caring

I've spent some money for this bike and I haven't been using it too much since that happened cuz that is what I thought - I will make more damage.. I've already ordered wave washer and as soon as i get it I will let You know is that works.

Dirty_Conky

Hello again,

So i've ordered the spring washer and it seems to fit but after a single ride bolt unscrew again.. I've started to remove my left crankarm and I've noticed that is slightly moving. When i removed completly I found oud that hole is jagged a little bit, probably cuz I've been driving on damaged crankset. In this case, can I replace just my left crankarm?

Also, after I've put wave spring washer I have noticed my crankset is still slighty moving. Could I lose some other parts, like spacer? What can I do to set it properly?
[img][/img]

Dirty_Conky

I've also noticed that bolt is jagged so i'm waiting for new one to see if that will do any difference.