original clutch, factory installed clutch parts Options

[wonkipop]

1974 1.8
clutch started slipping after recommissioning.


found interesting things dropping gearbox.
(assembly sticker on case posted elsewhere).

clutch was original type rubber centre disc plate - think thats what they were called.
(with bits of it inside bell housing!).
not sure why porsche used these, but understand they persisted on 911s well into the 80s.
fatter than usual conventional spring type clutch plates.
because of thickness central section of original clutch disc had just started to contact the flywheel bolts leading to slip.
lasted 46 years and 44,000 miles.
guessing last 16 years sitting wasn't great for it, particularly the rubber parts leading to demise - wonder it lasted this long.



flywheel washer is cute, stamped vw type 4 part number and vw logo.
don't get them like that anymore.

[wonkipop]

@ ironhill

i honestly don't know much about these clutches.
before my 914 i was a vw man.
inherited my mothers 64 beetle and after that i owned a 73 squareback (what a great car that was). i replaced the clutch in that once and vaguely remember it. the pressure plate looked nothing like modern tongue type pressure plates.

the information i have is that these rubber clutches could explode. suspect it was higher powered porsches like 930s made that happen rather than 914s.
though i think my "weak" little 914 was about to wrench this half century old relic apart. it drove ok 16 years ago when i stored it away (divorce etc, you know the scene) and in the years that passed it just went hard and rotten.
amazingly it still worked though, sort of, though i can shake it around now and it rattles. !!!

i think porsche quietly canned these sometime around the end of the 80s or early in the 90s having asked around. a failed experiment.

they were supposed to stop clutch chatter and make everyday driving a smooth experience. thats all been solved with more modern clutches with springs. hence no repair part.

they do work well, as i can attest from earlier years driving it. but the rubber has an expiration date. i was well past that with mine. well past.