[TACSTS]

I installed a new 7800 DA crankset a couple weeks ago and I didn't grease the splines on the axle where the non-drive crankarm connects. In the instructions from Shimano they make no mention of greasing this interface, but I've always thought if it was a splined interface it should have a light coat of grease? Got to thinking about it the other day on a ride when I was getting a slight ticking sound at a certain point of the crank revolution. Should it be lubed? What have other people with hollowtech II/ GXP/other outboard bearing BB-crank set-ups done? Thanks!

 

[tuscanybill]

Hi there, I'm not a pro bike mechanic, first off, but I do all my own stuff. Upon a inpection of my 7800 crank set I found a light coat of grease and reappied the same durring assembly. I checked the shimano site and found no recomendations, I can't see where this would get us in trouble in this application. Hope this is helpfull, kind of curious what the wenches say. All the best -- Bill

 

[capt_phun]

yes it needs grease. You can check the FSA site and they also say to grease the splines as well as the BB cup threads as well as the cup face.

 

[b987654]

grease it all

Isn't it safe to grease everything but carbon to carbon connections??

 

[TACSTS]

Well I thought I'd post a follow up. I pulled off the non-drive crank arm and slathered on some grease and reinstalled the arm. Totally took care of my little click I was having. So I guess it still holds true, if it's splined --> grease it.

 

[capt_phun]

it its threaded grease it (or better anti-sieze it)