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| Joined: | 09-17-2007 |
| Location: | San Francisco, California USA |
| Posts: | 221 |
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I also pulled one of my distributors apart and it looks the same as yours. I think the spiral acts as a pump to push the oil back towards the engine. As long as you are not getting any oil inside the distributor it should be OK.
Interesting, I thought the exact same thing in terms of that spiral cut- some way to push oil in the opposite direction. The dizzy is marked with a "74" on there and I first thought it might be one of the earlier units without a shaft seal, but I have no idea.
I did manage to find a source for the actual seals used in the proper "lotus" version from a source in the UK. Looks like a simple lip seal. This is for the 43/45:
https://www.sjsportscars.com/parts-and-accessories/SJ754.htm