Crank gear supplier?

[Ian Williams]

Both gears usually have markings on them although I have come across unmarked crank and cam gears, there seems to be a plethora of presumably after market gears here in NZ without markings or Austin part numbers. I have a huge collection of gears some matched pairs and some loose, I always try a number of combinations in a crankcase to get the best fit as others have already described. One word of warning when doing this, carefully examine your used gears, they will usually have un worn high spots near the tooth edge, these must be removed or they will point load causing two issues. It will give you a false idea of mesh which will be quickly be lost in use when the high spots wear down. Or worse some of the teeth will break potentially causing all sorts of damage.