chainring bolt

Ask for advice or share your fettling tips
chatlow
Posts: 459
Joined: Fri Mar 08, 2013 12:01 pm

chainring bolt

Postby chatlow » Sat Oct 05, 2013 07:19 am

Have removed 4 out of the 5 bolts to put some copper grease on each one. the backing part of the 5th bolt is turning with the bolt so therefore not coming out. I have chucked some lube and gt85 on it but no luck. Tried a flat screwdriver, coins etc in the slot but nothing strong enough to hold the backing part still.

Any ideas tips?

User avatar
shadow4532
Posts: 133
Joined: Tue Mar 26, 2013 15:00 pm

Re: chainring bolt

Postby shadow4532 » Sat Oct 05, 2013 07:42 am

GIANT PROPEL SL1 for racing and posing
TREK 2.5 training and commuting
GIANT REVEL 1 LTD for when it gets all snowy

chatlow
Posts: 459
Joined: Fri Mar 08, 2013 12:01 pm

Re: chainring bolt

Postby chatlow » Sat Oct 05, 2013 07:45 am

ha, thanks but I'm hoping to get this sorted today for a ride. going to have to find a wider screwdriver and give it another go

User avatar
shadow4532
Posts: 133
Joined: Tue Mar 26, 2013 15:00 pm

Re: chainring bolt

Postby shadow4532 » Sat Oct 05, 2013 07:54 am

ah fair enough. you could try using 2 people one of you holding the screwdriver the other undoing the bolt. its very hard to do both sometimes.
GIANT PROPEL SL1 for racing and posing
TREK 2.5 training and commuting
GIANT REVEL 1 LTD for when it gets all snowy

Mac-cos
Posts: 75
Joined: Sat Nov 26, 2011 11:25 am

Re: chainring bolt

Postby Mac-cos » Sat Oct 05, 2013 11:30 am

I'm wondering whether copper grease is a good idea on these and that maybe a light threadlock would be a better idea? Theres a lot of torque going through the cranks to the chain ring an this could fret the bolts loose if greased rather than locked... just a thought not a proved theory.

chatlow
Posts: 459
Joined: Fri Mar 08, 2013 12:01 pm

Re: chainring bolt

Postby chatlow » Sat Oct 05, 2013 17:47 pm

Any thoughts on this? LBS said not to bother using copper grease on chain ring bolts, only on the pedal threads.

They were also unable to remove the final bolt - and said drilling it is the best bet.

Yossielite
Posts: 5
Joined: Sat Oct 05, 2013 21:05 pm

Re: chainring bolt

Postby Yossielite » Sat Oct 05, 2013 21:28 pm

Copperslip it in and away you go - Yossie says that if you Loctite them in you'll never get them pout because of where there are - they get covered in shyyyte anyway so clean them greased up and do up nice and tight.

He's always copperslipped his and its solved loads of problems.

Remember - rotating parts, moly, non rotating copperslip (as its slightly abrasive)

The bits of copper in the copperslip will also help to secure things in place.

Drilling out is also easy so he says, to be sure, to be sure and a new bolt should be a matter of pence.

mitchgixer6
Posts: 1285
Joined: Mon Jan 19, 2009 09:00 am

Re: chainring bolt

Postby mitchgixer6 » Sun Oct 06, 2013 13:40 pm

Get a set of these and you'll do away with the screwdriver/coin carry on.

http://www.cyclestore.co.uk/productDeta ... ctID=16484

Oh and I'd put a dab of grease on. It took me months to track down a creak coming from my drivetrain, turned out it was the chainring bolts!!

chatlow
Posts: 459
Joined: Fri Mar 08, 2013 12:01 pm

Re: chainring bolt

Postby chatlow » Sun Oct 06, 2013 13:55 pm

noted, thanks!

Should I copperslip the bolts holding the crank arms as well? Just I can hear a sight creak/click when I put pressure on them..


Return to “Workshop”

Who is online

Users browsing this forum: ElectronShepherd, joe2008 and 2 guests