cz 250 big end bearing

[k2000x]

does anyone sell big end bearings 4 a cz250 in australia

[Bamford#69]

Hi ,
If dont replace the big end bearing ,con rod,and crankpin as an assembly   you  will be sorry.
Good Luck,

[k2000x]

you could once get an i.n.a bearing that you could use if there were no marks in the rod

[k2000x]

im new 2 cz stuff it has no up and down movement but there is plenty of side 2 side is this normal

[Bamford#69]

Hi
the reason there is side freeplay in the big end,(in a good motor), is because there are no  thrust washers in the bottom end , that is why they have the thrust washers on the gudgeon pin , do not use any thing other than the factory thrust washers up there, remember, any thing made out of steel in a CZ mxer is made out of recycled Kalashnikovs and T18 tanks, including mud guards,fuel tanks and air boxes, strong but really heavy.
If you read a CZmxer parts book, page 14, you will see there are 4 size of big end bearings to match up with 5 fractional fit con rods .
Good Luck trying to save a buck.

[Lozza]

Plenty of engines run fine with no piston thrust washers, and converting to big end thrusts is a doddle. Have you got the gudgeon pin dia, centre to centre length, crank pin dai and width and I'll look in my charts and see if there is an alternate rod.

[090]

Why bother. They are over the counter stuff as they are pretty much the same thing all the way through. I think a rod kit is about $250. Les at Mainly Maico sells them.

[Lozza]

About $120 less bother or the CZ rod kits must come hand delivered , individualy wrapped and boxed in Channel No5 boxes