Lotus Elan

Break Tandem Master Cyl Rubber Seal

PostPost by: hastu » Sat Jun 15, 2024 7:32 am

I am so happy to have found a new Reservoir including the 2 Rubber Seals for the Break Tandem Master Cylinder of my +2S 130. But now the Question:

In which direction should the rubber seal be fitted on the nose of the reservoir?
Version A or Version B, and why (i always like to understand what i do)
Attachments
K1600_IMG_8022.png and
Tandem Master Cyl Reservoir Seal B
K1600_IMG_8021.png and
Tandem Master Cyl Reservoir Seal A
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Elan +2 S130 1971 Pistachio Lime Green
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PostPost by: nmauduit » Sat Jun 15, 2024 2:51 pm

Congratulation on such a find (esp. the rubber front seal, I had to make do with a couple o-rings after some trials): I would think AAAAA but would first test fit the seal it in the master cylinder to see how it sits at the bottom, then measure how much of it would be pressed in when the reservoir is inserted till the c-clip is inside its groove. If it looks like there will be some mechanical pressure that should be good (the seal is only at atmospheric pressure, one just need it not to let the brake fluid seep away over time).
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PostPost by: hastu » Wed Jun 19, 2024 1:28 pm

Thnaks for your Input. I try it this way and hope it stays tight.
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