alternator pulley size anyone?

[twin_turbo_mk3]

i need to convert my supra alternator to a 6 v grove pulley.

after looking around i cant find the size hole it has.

i found a pulley that say" 20mm BELT x 57mm OD x 17mm BORE"

is the bore the hole for the bolt size? isa 7m alternator have 17mm?

and what do they mean by 20mm belt? doesnt all 6 grove belt desame?

and OD is the diameter right?

 

[gaboonviper85]

20mm belt is how wide the belt is

Od= outside diameter of the pulley

Bore= inside diam of hole or resess, aka bolt hole.

 

[twin_turbo_mk3]

20mm belt is how wide the belt is

Od= outside diameter of the pulley

Bore= inside diam of hole or resess, aka bolt hole.

whats the 7m alternator pulley bore size?

 

[gaboonviper85]

I don't have a pulley to measure but don't you have the old one you can measure?

 

[IJ.]

GTE 17mm

GE 15mm