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Technical & Reference Section => Tech and Restoration => Topic started by: Disco Dave on March 11, 2018, 06:48 PM

Title: Sprocket top hat washer play
Post by: Disco Dave on March 11, 2018, 06:48 PM

Hi,
I just got a new sprocket (Stolen cartwheel). I noticed the top hat washer doesn't fit tight into the sprocket, there's just under a mm play between the sprocket and the washer. So when it's on and I turn the sprocket the chain goes from tight to loose, at the same point in every revolution.

Should there be play between the washer and the sprocket like this?

Title: Re: Sprocket top hat washer play
Post by: CustardLips on March 11, 2018, 08:39 PM

Sounds like you need another top hat washer... there are slightly different sizes.   :daumenhoch:

Title: Re: Sprocket top hat washer play
Post by: Disco Dave on March 11, 2018, 10:17 PM

Thanks but I don't think it can be that. The gap between the top hat washer and sprocket is only like 0.5mm. The different top hat washers available are 5/16" to 22mm, 5/16" to 19mm, an 22mm to 19mm. 5/16" is 23.8mm so if it wa the wrong washer it would have a 2-3mm gap. Also I have three 5/16" top hat washers, all fit the same with a little play in the sprocket.
They should fit tight with no play right?

Title: Re: Sprocket top hat washer play
Post by: pickle on March 13, 2018, 11:43 AM

Yes, the top hat washer should be a good tight fit

Title: Re: Sprocket top hat washer play
Post by: Disco Dave on March 13, 2018, 05:54 PM

They've refunded me and told me to throw the sprocket away. Anyone want a dodgy Stolen Cartwheel 25t polished silver cheap?  :LolLolLolLol:

Title: Re: Sprocket top hat washer play
Post by: oldtired on March 13, 2018, 06:26 PM

keep the sprocket if you like it , shim the gap with a pop can........      sorry   i'll get me coat   :-[     i meant beer can  guiness ones are recomended by myself  :daumenhoch: