View single post by Esprit2
 Posted: 12-10-2017 10:11 pm
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Joined: 05-01-2005
Location: Minneapolis, Minnesota USA
Posts: 341
Just a general statement about rope seals... I don't know how specifically this applies to the Mk I 907's seal.

In the 1980s, asbestos and some other key materials in many old rope seals were declared hazardous and removed from rope seals. The result was neutered rope seals that were no good from the day they were made.

Technology has since caught up, and modern asbestos-free rope seals are once again much better.

When you buy a rope seal, either look for really old NOS parts from the '70s, or very current, new parts. But do not buy NOS (New Old Stock) rope seals manufactured during the 1980s & 90s. For the most part, they were crap to begin with and didn't get any better with age.

Tim Engel