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View Full Version : Removing front sprocket nut?


Wideboy
22-08-10, 04:03 PM
i cant undo the nut on the front sprocket :confused:

I've got 130lb going through the windy gun = that wont budge it

engine locked + dad sat on the bike + my foot on the swing arm as leverage + all my strength = still wont budge and the bike is being lifted off the ground

i cant make it out i was the last person to change them but i didn't wrench up that tight :confused:

anyone got any suggestions? im completely stumped

beabert
22-08-10, 04:11 PM
Have you bent the washer around the nut back straight? if yes, just get a big braker bar, i use our vacuum pipes lol

Wideboy
22-08-10, 04:12 PM
yes :lol:

timwilky
22-08-10, 04:14 PM
I did Andy Saxons the other night. didn't bother with the windy, Breaker bar on and off it came like a good un. Resort to every day tools. It doesn't need impact, just torque.

beabert
22-08-10, 04:15 PM
Try heating the nut up incase someones put that strong locktight stuff on.

Wideboy
22-08-10, 04:23 PM
I did Andy Saxons the other night. didn't bother with the windy, Breaker bar on and off it came like a good un. Resort to every day tools. It doesn't need impact, just torque.

i've done that on the second thing in first post (forgot to say)

Try heating the nut up incase someone's put that strong locktight stuff on.

no it might damage the oil seal on the casing? :confused:

timwilky
22-08-10, 04:30 PM
Lefty loosey???

I know stating the obvious.

Whilst Andy's came off with just his foot on the brake. I have in the past had to put a piece of wood though the back wheel when I have been on my jacks to crack the front sprocket nut.

beabert
22-08-10, 04:33 PM
Me too, tyre iron in the back wheel, two vacuum poles.

Wideboy
22-08-10, 04:34 PM
yeah that's how I've done it in the past, this time round the chain is so badly fubared I've got the motor locked from the generated bolt as the chain just jumped on the sprocket

mattSV
22-08-10, 04:35 PM
I've got a 200nm 1/2" wrench and a 4ft scaffold pole if you need it...

Specialone
22-08-10, 04:38 PM
2ft bar on that should do it along with some man strength.
Scaff tube is what i use for stubborns little gits.

mattSV
22-08-10, 04:45 PM
2ft bar on that should do it along with some man strength.
Scaff tube is what i use for stubborns little gits.

Scaff pole is to **** the bloke who did it up last time ;-)

Wideboy
22-08-10, 04:50 PM
you may be my life line i've just had a phone around, alright if i nip round?

mattSV
22-08-10, 05:14 PM
Yer, get your lanky **** round here

Wideboy
22-08-10, 05:15 PM
alright give me 10 min im covered in crap

mattSV
22-08-10, 05:17 PM
Have a shower and put that nice aftershave on then :p

Specialone
22-08-10, 05:18 PM
Scaff pole is to **** the bloke who did it up last time ;-)

Wasnt it gavin?
You dont use the pole to do it up ;)

Specialone
22-08-10, 05:19 PM
Have a shower and put that nice aftershave on then :p

Please dont post the any pics, we'll take your word for it lol

Mr Speirs
22-08-10, 05:33 PM
Had to get mine off the other day. Supposed to be torqued to 186nM!!! I have my torque wrench set at 200nm and it still didn't budge. Read that a few people tried 4ft extensions on breaker bars and still had no joy. In the end a 24" breaker bar and a **** load of strength and leverage the nut cracked loose. **** meself, thought I'd broken summat.

beabert
22-08-10, 05:51 PM
Your undoing with a torque wrench? :-O

yorkie_chris
22-08-10, 05:56 PM
Your undoing with a torque wrench? :-O

If it doesn't click, it's technically not abusing it :D

Wideboy
22-08-10, 06:13 PM
well that got the barsteward :lol:, used my wrench as i could see something breaking, it took my dad holding the bike and the wrench onto the nut and all of me bouncing on the scaffold to get it to crack..... massive crack, so big i thought I'd snapped my torque wrench :lol: but it was the nut yay!! tool abuse FTW!

Mr Matt sir, you are a gentleman and a scholar, i'll shall return your gubbings about 7 is tomorrow evening :D

beabert
22-08-10, 06:32 PM
If it doesn't click, it's technically not abusing it :D

Just going by my manual, never saw the point of the direction reverse thing, somewhat of a contradiction.

Mr Speirs
22-08-10, 06:51 PM
Your undoing with a torque wrench? :-O

Yeah why?

Sid Squid
22-08-10, 06:55 PM
Just going by my manual, never saw the point of the direction reverse thing, somewhat of a contradiction.
Not all threads are right handed.

mattSV
22-08-10, 08:13 PM
well that got the barsteward :lol:, used my wrench as i could see something breaking, it took my dad holding the bike and the wrench onto the nut and all of me bouncing on the scaffold to get it to crack..... massive crack, so big i thought I'd snapped my torque wrench :lol: but it was the nut yay!! tool abuse FTW!

Mr Matt sir, you are a gentleman and a scholar, i'll shall return your gubbings about 7 is tomorrow evening :D

You're welcome.

Don't do it up so ****ing tight this time you **** ;)

beabert
22-08-10, 08:27 PM
Not all threads are right handed.

Ahhh, good point.

Yeah why?

Just my manual says not too, might be just mine :-)

thefallenangel
22-08-10, 08:46 PM
remeber trying to undo a driveshaft nut on a 106. The thing was seized on with a 4ft scaffold bar and 16stone jumping on it. Cut the bugger off in the end and the other side walked off with just a breaker bar.

Out of interest did you soak in WD40 or just attack it?

Wideboy
22-08-10, 08:48 PM
You're welcome.

Don't do it up so ****ing tight this time you **** ;)
it was them gremlins again... pesky barstewards!



Out of interest did you soak in WD40 or just attack it?

attacked it, never had any luck with wd40 so never bother with it

-Ralph-
22-08-10, 08:51 PM
Just my manual says not too, might be just mine :-)

No it's not just yours, strictly speaking you shouldn't undo with a torque wrench as if it does take more torque than you have set it to to undo the nut, then it will click, and from that point on, you are putting force on the calibrated mechanism = one unaccurate torque wrench. It is basically an abuse of your tools, go buy a breaker bar for well under 20 quid, and save your torque wrench which probably cost way more than that.

beabert
22-08-10, 11:07 PM
No it's not just yours, strictly speaking you shouldn't undo with a torque wrench as if it does take more torque than you have set it to to undo the nut, then it will click, and from that point on, you are putting force on the calibrated mechanism = one unaccurate torque wrench. It is basically an abuse of your tools, go buy a breaker bar for well under 20 quid, and save your torque wrench which probably cost way more than that.

Uts not me you need to tell, i take care of mine :-D

timwilky
23-08-10, 06:49 AM
it was them gremlins again... pesky barstewards!



attacked it, never had any luck with wd40 so never bother with it

Why doesn't it surprise me that water displacement gives poor results for breaking free stuck nuts!

Personally I have better results when I use penetrating oil, Water displacement I spray on damp electrics. I cannot understand why people use it as an all purpose cure all. At least you don't waste your time with the stuff.

thefallenangel
23-08-10, 10:24 AM
Why doesn't it surprise me that water displacement gives poor results for breaking free stuck nuts!

Personally I have better results when I use penetrating oil, Water displacement I spray on damp electrics. I cannot understand why people use it as an all purpose cure all. At least you don't waste your time with the stuff.

Well yes penetrating oil is better. For some reason i typed in WD40. Although WD will probably have a go at clearing the gunk that builds up in that region.