morty
17th November 2018, 06:29 PM
After receiving brand new aftermarket pins, I noticed that the old ones fitted better with less play, in the new railco bushes. I think the oil would do a decent job of lubricating the pins but I have gone ahead and also installed nipples on the pins too. More the merrier. Here are some pics.
First, using a lathe I bored with a 1/8 drill bit 48mm into the pins, then bored a larger hole of 8.5mm at a depth of 15mm so I could tap a 1/8 BSP thread into it for the grease nipple.
146099
Then using a mill drill I positioned the pins centred in the compound table. Using verniers I measured 48mm down the length of the pin. Once again using a 1/8 drill bit I bored down the radius and connected the two holes. I confirmed this by blowing a little compressed air in the grease nipple end.
146103
Then using the 1/8 BSP tap which matched my grease nipple thread pitch. I then left the top pieces of the pin assembly in a oven to let it expand so the pins would go in a little easier. Photos below of final product and shimming up the swivels to correct friction.
146104146105
Hopefully, combined with regular maintenance this might extend the life of the swivel housing components.
First, using a lathe I bored with a 1/8 drill bit 48mm into the pins, then bored a larger hole of 8.5mm at a depth of 15mm so I could tap a 1/8 BSP thread into it for the grease nipple.
146099
Then using a mill drill I positioned the pins centred in the compound table. Using verniers I measured 48mm down the length of the pin. Once again using a 1/8 drill bit I bored down the radius and connected the two holes. I confirmed this by blowing a little compressed air in the grease nipple end.
146103
Then using the 1/8 BSP tap which matched my grease nipple thread pitch. I then left the top pieces of the pin assembly in a oven to let it expand so the pins would go in a little easier. Photos below of final product and shimming up the swivels to correct friction.
146104146105
Hopefully, combined with regular maintenance this might extend the life of the swivel housing components.