BMX - Fitting a 3 piece crank

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Pittard
08-01-04, 10:16 AM
I know roughly how to fit a crank but i want to make sure i do everything exactly right because i don't want to be buying another because i've bust the thing so does anyone know anywhere on the net where there is a step-by-step guide on fitting a 3 piece crank which i can use or adapt when fitting mine! Thank you!!

PGZX3
08-01-04, 11:21 AM
what are you trying to do now? convert to a 3 piece crank???
Ninshadow
08-01-04, 11:41 AM
It depends on what your doing. Are you converting from a unsealed 1-peice or are you changing from unsealed to unsealed 3-peice or a un-sealed to a sealed 3-peice or a sealed to a sealed 3-peice? I would be glad to make instructions for any of these but I have never messed with sealed. I can find out for you though.

PGZX3
08-01-04, 11:48 AM
I've messed with them all, unsealed 1 piece, sealed 1 piece, unsealed 2 piece, and unsealed and sealed 3 piece, by all means, ask away, just be more specific as to what you're trying to do!!
Pittard
08-01-04, 11:50 AM
i am converting from an un-sealed 1 piece to an un-sealed 3 piece
Pittard
08-01-04, 11:51 AM
I've messed with them all, unsealed 1 piece, sealed 1 piece, unsealed 2 piece, and unsealed and sealed 3 piece, by all means, ask away, just be more specific as to what you're trying to do!!

sorry i'll try to be more helpful next time
PGZX3
08-01-04, 12:57 PM
Okay, your best bet would be to use a screw driver to bang out the old bearing cups then gently tap the new ones in going in a slow circle around the flat edge, then install the spindle and the bearings over that (remember to grease them at this point). At this point you will want to install the bearing race on the spindle and then the lock rings (loctite is helpful here). After this install the crank arms and whatever manner is used to affix the crank arms to the spindle. Now all you have to do is install the pedals, and remember the ones from your one piece cranks won't fit!

Good luck!!
Pittard
08-01-04, 02:05 PM
just bought sum new v8 9/16" pedals that's the size i want aint it not the 1/2"???
PGZX3
08-01-04, 02:56 PM
correct
jrt1990
08-01-04, 02:57 PM
im not sure about that, i think it mite be the other way around, im not sure, dont take my word for it, the only cranks ive messed with were on a my lowrider when i had to put the 4" cranks in.
Pittard
08-01-04, 03:10 PM
but i've always thought that and my 1/2" ones i got fit on my one piece now so it can't be! Thanks for all your help i'll post back if i have any problems fitting it!
PGZX3
08-01-04, 07:12 PM
no problem on the help and I am 110% sure on the 9/16" pedals.