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Uneven chain tension


Hoggs
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Hello and welcome to another exciting episode of stuff Hoggs knows nothing about and would love some help from you lovely lovely people :mrgreen:


So I adjusted the chain tension the other week but being the giant spoon I am I didn't roll it about to check it was even. And it's not. At the loosest point it touches the swung arm with a tad more in hand and at the tightest there's about 1cm play.


There's a mystery noise that I think may be the chain slapping about on the swing arm at the loose bit. So my questions are how do I get even tension? And is it ok to pootle about on until I can look at it again on Sunday?


Apologies for my uselessness :(

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Sounds like a new chain is required. :( . Should be ok till the weekend. You need to find the tightest point and adjust there. If you adjust at the slickest point there is an outside chance if it is too tight at the tight spot it could break.

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to get even tension you will need to replace the chain!


I would say that the chain has just about had it and in need of replacement


tight and slack spots are caused by the chain wearing more at certain points usually through lack of lubrication in that area


there is nothing you can do once it gets like this!

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Hi, if you have manage to fit the chain with it tight at the top and very slack at the bottom then you need to jump the chain one tooth back over the sprocket to equal the slack top and bottom. Otherwise l would suspect that you've got a stretch section of chain in which case a replacement needs to be sourced.

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Oh boo I was hoping it was fixable. But Yay shopping!


@chris it goes from tight to loose in about 1/3 wheel turn so looks like a stretched bit :(


Thanks guys :thumb:

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Oh next logical question.... recommended chains and sprockets! I do around 100 miles a week mix of dual carriageway and town riding. It's my only transport so prepared to spend what is required (but don't need to go crazy top end!)

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DID chain with renthal sprockets :)

 

:stupid:

You get what you pay for, a good quality chain and sprockets will give you many thousands of miles of service

PROVIDED you regularly clean and lube it.

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buy a scotoiler :wink:

 

Even better my incredibly lovely father is giving me his old one (he'll point out its not a scotoiler it's a different brand but I've forgot what he said in the excitement of buying stuff!)


My new shiny things should be here in 2-4 days :mrgreen:

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Although worn chain is the most likely cause of the tight spots, its worth checking the sprockets are running true.


If you put new sprockets on rotate them while watching the tips of the teeth are all the same height.

The accurate way is to use a dial gauge indicator, but closing on eye and using a feature to align your line of sight with will work.

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