swing arm

[ssquickel]

I am working on a 1974.5 to 1975 6 hole swing arm. need a little help on how to get roller cage bearing out. in order to weld where chain has worn groove in swing arm. also looks like it had oil in there. how much oil goes back in and what type of oil.

thanks
 Sandy

[Rocket]

I remove the needles and then use a die grinder with a small carbide bit to grind through the shell of the bearing and then they come right out.  Once it is all together, remove both of the small 6mm bolts and fill the cavity with oil, about any oil will do the trick.

[skiracer]

If the bearings are still good, why go through all that work? Why not put a piece of protective material on the swingarm instead?  KIS.

1976 250 MC5 Original Owner
1976 Penton 175 XC

[454MRW]

I've taken a lot of them apart, but I've never found one that had good bearings in it still. Mike
I did have one MC5 where they replaced the bearings with bronze bushings.

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Penton
1976 MC5 400
1978 KTM 78 GS6 250
L78-79 MX6 175-250 KTM's
1976-78 125-400 RM's
2007 CR125R Honda
1977 MC250 Maico
2017 KTM Freeride 250R

[ssquickel]

thanks for all your help.
sandy