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Mid School BMX (>87) 1989 to 2003 (<05) => Mid School ( Keep the faith ) => Topic started by: paulb113 on December 27, 2014, 03:58 PM

Title: Kong Fu US BB problems!! see picture
Post by: paulb113 on December 27, 2014, 03:58 PM

I took my Kong Fu out on the Rad toy ride but the bottom bracket kept seizing up, it looks like it may have a bit missing? it looks like the main part on the left side screws on then its got a big nut on it but wondering if it should have two, one to lock it in place?

Will try and get a picture up later

(http://i733.photobucket.com/albums/ww333/paulbarlow_album/Mobile%20Uploads/IMG_20150101_132545_zpsswydeatl.jpg) (http://s733.photobucket.com/user/paulbarlow_album/media/Mobile%20Uploads/IMG_20150101_132545_zpsswydeatl.jpg.html)

Title: Re: Kong Fu US BB problems!!
Post by: Gary72 on December 27, 2014, 04:05 PM

Is it a one piece crank?
If so it sounds like the locking nut is missing :daumenhoch:

Title: Re: Kong Fu US BB problems!! see picture
Post by: paulb113 on January 01, 2015, 03:50 PM

Not a 1 piece crank

Title: Re: Kong Fu US BB problems!! see picture
Post by: oldtired on January 01, 2015, 06:45 PM

doesn't look right that ,can you pull the crank arm off n get some pics ,   chains on backwards too  :daumenhoch:

Title: Re: Kong Fu US BB problems!! see picture
Post by: paulb113 on January 01, 2015, 06:55 PM

I will see if I can get the arm off tomorrow, the part behind the arm seems to have a thread and tightens when its ridden, how could I change chain round on half link? should there be one pin that's loose?

Title: Re: Kong Fu US BB problems!! see picture
Post by: oldtired on January 02, 2015, 12:24 AM

chain will split like a normal chain with a link splitter , check the side plates on the links after though to make sure they're not deformed or cracked round the hole,this where half links will fail  :nuts:  if you haven't got any spare links  leave it as is should be ok , tis suposed to be run the other way round though

Title: Re: Kong Fu US BB problems!! see picture
Post by: bobbbbsy on January 02, 2015, 01:53 AM

dump the half link chain. its been found out they stretch like mad. en vogue use traditional chains again now.

Title: Re: Kong Fu US BB problems!! see picture
Post by: BADDH on January 02, 2015, 09:33 AM

Bring it round Paul I will repair that for you.

Title: Re: Kong Fu US BB problems!! see picture
Post by: paulb113 on January 02, 2015, 04:37 PM

Thanks Darren :daumenhoch:

shall I drop it off at the weekend?

Title: Re: Kong Fu US BB problems!! see picture
Post by: paulb113 on January 22, 2015, 05:20 PM

(http://i733.photobucket.com/albums/ww333/paulbarlow_album/Facebook/Mobile%20Uploads/IMG_20150122_120540_zpsrudsubp6.jpg) (http://s733.photobucket.com/user/paulbarlow_album/media/Facebook/Mobile%20Uploads/IMG_20150122_120540_zpsrudsubp6.jpg.html)

Bearings were wrecked!

Title: Re: Kong Fu US BB problems!! see picture
Post by: paulb113 on January 22, 2015, 05:21 PM

(http://i733.photobucket.com/albums/ww333/paulbarlow_album/Facebook/Mobile%20Uploads/IMG_20150122_150442_zpsd4vkten6.jpg) (http://s733.photobucket.com/user/paulbarlow_album/media/Facebook/Mobile%20Uploads/IMG_20150122_150442_zpsd4vkten6.jpg.html)


I got a new set of bearings :daumenhoch: