mahle piston question

[brianc]

hi,does anyone know if mahle pistons are designed not to use shims either end of the little end bearing as no matter how hard i try i cant fit them,too thght,ive assembled the top end without the shims is this ok.

[soosh]

I don't have any on the little end on my piston.

[bazman]

I don't have any on the little end on my piston.

Very good of you too let us know fella , better keep it to yourself next time though, don't think your mrs would be too happy....

[DaveTomo]

No shims on my mitaka piston but the crank is shimmed,but you want a bit of float anyway.If your crank is shimmed then it shouldn't be a problem,you don't want shims both ends crank and piston,either one end or the other but not both.

[soosh]

I don't have any on the little end on my piston.

Very good of you too let us know fella , better keep it to yourself next time though, don't think your mrs would be too happy....

[corrado]

Are bike cranks shimmed at the big end?

[RICSPEED]

stickies book covers this .. i think it says shims are not needed depending on the crank

[shocky]

Are bike cranks shimmed at the big end?

when i worked at pittville cycles we used to do alot of smaller bikes and some RD,s and they were shimmed i cant remember the smaller stuff being shimmed but all the twins were, the shims would wear on some and there were tolerance given by the makers i dont ever remember seeing any small end shims its been over 20 yrs i dont remember any cranks letting go but normally the bike would smoke and rattle which ment rings and prob crank bearing on its way out

[RICSPEED]

tbh .. lambrettas are the only two stroke .. never in a four .. that i have ever worked on/had in bits that use gudgeon pin shims

[brianc]

the engine is assembled and running fine,the shims are not fitted as it was impossible to fit them,il just need to see how it goes.
brian.