Levo chain guide bolt torque

[Jeff McD]

Sucker keeps loosening up and dropping onto chain causing the ticking sound, and can't find proper torque listed. Anyone know this? Thanks, Jeff

 

[Ddc6284]

Have had the same problem too. Mine actually can installed wrong... As fast as toque know idea. Just did hand tight. So far so good.

 

[Sparkerfix]

Drop a bit of thread lock on it?

 

[Maastricht]

The 2019 Levo manual says:

So I guess it's the 5mm HEX bolt you need to torque it at 10Nm where you first need to apply blue loctite. (see note 4)

 

[Jeff McD]

Yeah I got the manual as well. But that list of torque values doesn't really include the chain guide torque value. 10 N meters is quite a bit. I think I will put blue Loctite and start at 5 N meters and keep going up until it stops loosening.

 

[Benson]

Holy thread resurrection .... I’ve just managed to snap mine (2019) trying to get it to 10Nm, anyone know if the nut and bolt can be bought separately?

 

[oripaamoni]

Holy thread resurrection .... I’ve just managed to snap mine (2019) trying to get it to 10Nm, anyone know if they nut and bolt can be bought separately?

I did the same thing, Ended up just buying a new chain guide and swapping the whole thing.

 

[Benson]

I did the same thing, Ended up just buying a new chain guide and swapping the whole thing.

Easily done it seems, did you buy an aftermarket guide or replace with the same thing?

 

[outerlimits]

They are basically a Praxis Work component like the chainring. Torque spec is 4nm

 

[Benson]

They are basically a Praxis Work component like the chainring. Torque spec is 4nm

Cheers, seems you can’t buy the bolts separately so I’m picking up a complete new chain guide today.

 

[KennyB]

Yup, stripped the thread on the bolt, in my defence there is not much thread there and the flats remove half of it anyway. No replacements available in UK and Best Bike in Germany (looks like a good source of bits) out of stock. I didn't fancy running without the guide as that 1/4 turn run on could do a lot of damage if the chain falls off the inside so I:

1. Checked the adjustment on the mounting plate to stop the guide rubbing the spider, 1/2 way up the slot in the plate.
2. Took it all apart and cleaned it with IPA.
3. Epoxied the bolt into the mounting plate, turned it clockwise so the shoulders touched the edge of the slot so that the glue joint wasn't taking all the torque. Left overnight.
4. Reassembled the guide without the rear washer to see if the chain rubbed in the smallest sprocket. It didn't so I had managed to get a wee bit more thread. Took it apart again.
5. Now the plate turns when I torque up the motor bolt and I didn't want to put any strain on the chain guide trying to hold it in place with a tool so I hand tightened it then judged how much the plate turned when torquing to 18 Nm - 1/4 turn.
6. Loosened the motor bolt, held the plate 1/4 turn from its desired position with the inner guide in place and hand tightened the motor bolt, torqued to 18Nm and the plate turned spot on.
7. Blue Loctite on the thread of the guide bolt, inserted the washer between the two parts of the guide and finger tightened until it just gripped.

So far so good, if it fails again I'll epoxy the whole thing together.