From what I’ve read on line if you have a Norton this is the place to come to. Well I have recently come into the possession of gaggle of mottos , 4 of which are Norton’s ranging from 66’ to 73’ . One is quite nice the other three not so much . They are pretty much all there and in their original form thankfully but will require a great deal to bring back. The nicest one is a 71 fastback with a belt drive installed. The 73’s motor is locked , the other 71 is all there , motors free but need a lot of tlc. The Atlas is rough and missing a couple of parts , kickstarter, Foot peg and a seat are the most obvious.
I’ve been wrenching most of my life , I’m 60 now so not much is scary anymore when it comes to mechanical things. The first order of business was to get the bikes cleaned up and see what was underneath the crud. I started with the Fastback and found a real gem. The primary had quite a bit of oil in it . Quite sure it should be dry since it’s a belt drive. Removed the cover cleaned and dried , waited 24 hours and could see the leak was obviously coming from the crank seal. Thought I could source a seal from a bearing supply but not having any luck. There is a supplier in England but I was hoping to find one a bit closer and perhaps a bit cheaper. Any ideas and suggestions would be much appreciated. I’ll post some pictures when I figure out how to. Hope to be able to add something to the conversation at some point.
Best, Jim
I’ve been wrenching most of my life , I’m 60 now so not much is scary anymore when it comes to mechanical things. The first order of business was to get the bikes cleaned up and see what was underneath the crud. I started with the Fastback and found a real gem. The primary had quite a bit of oil in it . Quite sure it should be dry since it’s a belt drive. Removed the cover cleaned and dried , waited 24 hours and could see the leak was obviously coming from the crank seal. Thought I could source a seal from a bearing supply but not having any luck. There is a supplier in England but I was hoping to find one a bit closer and perhaps a bit cheaper. Any ideas and suggestions would be much appreciated. I’ll post some pictures when I figure out how to. Hope to be able to add something to the conversation at some point.
Best, Jim
known as "wet sumping". Normally, the crank seal only has to keep spray/mist out of the primary. You should probably change the seal anyway, but pull the sump plug before you pull the seal. Searching "wet sump" will bring up many threads about how to address the situation, or if it even needs to be addressed at all!
