Not sure. Never seen them. They look like they would trap moisture and cause premature corrosion.
I do not see the need for them on a 914. Would make pulling a relay harder. One time use. Other ways to reduce corrosion of electrical contacts.
Bruce
They were just big rubber bands. They were added around 72-73 to keep moisture out of the relay. Most died after a short period of time. The ones that did not break are like yours. Most are hard and crusty. They will crumble when you start to take them off.
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