<!--quoteo(post=44994:date=Fri 22nd Jun 2007, 07:52 PM:name=ChrisG)-->QUOTE(ChrisG @ Fri 22nd Jun 2007, 07:52 PM) <{POST_SNAPBACK}><!--quotec-->When I put it back together the other week I put on a new nut and used locktight on the nut, but didn't put it on the sprocket as I'd ordered a new chain and sprockets.
New sprocket arrived today, and I've done about 500 miles in meantime. Just dismantled it and the sodding sprocket nut was slightly loose again![[Image: ranting.gif]](http://www.carpe-tdm.net/ipb/style_emoticons/<#EMO_DIR#>/ranting.gif)
I've now put in the new sprocket with locktight all over the splines (new one fits a lot tighter on the splines than the old one suggesting a bit of wear there too) and another new nut with locktight all over the thread.
<!--coloro:#FF0000--><!--/coloro-->Mate of mine suggested maybe the locktight gets attacked by the oil, which I guess is a possibility. Any ideas?<!--colorc-->
<!--/colorc-->
Unfortunatly I managed to burr one of the rear sprocket nuts quite badly getting the damn things off, hoping Camberley Autofactors might be able to supply me with some more otherwise it's a trip up to AHC tomorrow.
Dremmel makes light work of taking the old chain off though.<!--QuoteEnd--><!--QuoteEEnd-->
The loctite will be ok once cured.
Chain lube etc can't get into the splines etc with the nut on and torqued up.
Make sure you leave it 24hrs to ensure it is fully cured.
Loctite do 603, which is oil resistant, but isn't as good at filling larger gaps.
The 638 is design to wick into the gaps between splined shafts.
Loctite 243 isn't strong enough. It will not work. Trust me, you will still have a loose nut after time.
there is also '680' as well if you can't get 638.
Cleanliness is paramount. Use brake cleaner or contact cleaner to ensure the shaft and nut are spotlessly clean & oil free. Remove any rust with fine wet & dry, and clean again with brake cleaner or contsct cleaner.
New sprocket arrived today, and I've done about 500 miles in meantime. Just dismantled it and the sodding sprocket nut was slightly loose again
I've now put in the new sprocket with locktight all over the splines (new one fits a lot tighter on the splines than the old one suggesting a bit of wear there too) and another new nut with locktight all over the thread. <!--coloro:#FF0000--><!--/coloro-->Mate of mine suggested maybe the locktight gets attacked by the oil, which I guess is a possibility. Any ideas?<!--colorc-->
<!--/colorc-->
Unfortunatly I managed to burr one of the rear sprocket nuts quite badly getting the damn things off, hoping Camberley Autofactors might be able to supply me with some more otherwise it's a trip up to AHC tomorrow.
Dremmel makes light work of taking the old chain off though.<!--QuoteEnd--><!--QuoteEEnd-->
The loctite will be ok once cured.
Chain lube etc can't get into the splines etc with the nut on and torqued up.
Make sure you leave it 24hrs to ensure it is fully cured.
Loctite do 603, which is oil resistant, but isn't as good at filling larger gaps.
The 638 is design to wick into the gaps between splined shafts.
Loctite 243 isn't strong enough. It will not work. Trust me, you will still have a loose nut after time.
there is also '680' as well if you can't get 638.
Cleanliness is paramount. Use brake cleaner or contact cleaner to ensure the shaft and nut are spotlessly clean & oil free. Remove any rust with fine wet & dry, and clean again with brake cleaner or contsct cleaner.