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  4. KSS, KTS Manuals
  5. F236/4R Mk. II OHC Instruction Book 1950
  6. The Vertical Bevels and Bevel Bush Housings

These seldom need attention, but if it is required to remove the bevels the housing must be rested, with the gear teeth downwards, and the flange face across the protected jaws of a vice or over a large tube or bush of suitable diameter. The bevel gear is removed by forcing it out of its retaining collar by tapping the slotted end downwards, using a brass or aluminium punch to avoid damaging the bevel.

To remove the bush, this has to be pressed out of the housing in the same direction. If a re-placement bush is fitted, it is essential that after fitting, the thrust face of the bush must be exactly the same distance from the joint face as the original, and it is therefore necessary to check this distance carefully before pressing out the old bush. If the distance is not correct trouble will be encountered in re-assembling the bevels, as if the thrust face stands out too far the meshing will be too tight, and if not enough there will be too much back lash between the teeth.

When re-fitting the bevel smear the bearing surface with clean oil, clean out the bush and push the bevel into place. Place the locating collar over the end of the bevel with the flat face downwards, and press it down into place. When finally fitted, the collar must allow the bevel to rotate freely without end float.

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  • Velocette Documents
    • GTP Manuals
      • F40/5R GTP Instruction Book 1951
    • KSS, KTS Manuals
      • F236/4R Mk. II OHC Instruction Book 1950
      • F42/3R OHC Models 1925-1931 Instruction Book
    • MAC Manuals
      • F469/4R MAC Service Guide 1965
      • F466/2R MAC Owner's Handbook 1955
      • F50/7R MAC Rigid Frame Service Manual 1955
      • F50/4R Supplement
    • MOV and MAC
      • F131-3R Instruction Book 1937
    • MSS Manuals
      • F477 Owners Handbook 1954
    • Venom, Viper, MSS
      • F485/1R Owner's Handbook 1956
      • F484/9R Service Guide 1967
      • F484/11R Service Guide 1971
    • Valiant Manuals
      • F62-1R Service Manual