1977 Benelli 750 SEI Fork Seals
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Thread: 1977 Benelli 750 SEI Fork Seals

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    1977 Benelli 750 SEI Fork Seals

    My SEI use a PAIR of 35-47-7mm fork seals. Two are stacked up in each fork. From the original drawings, that appears to be the original specification. There is no seal retainer, just a press fit. I have set of Pyramid seals that are the same ID and OD but 10mm deep. They are DOUBLE lip seal units. Planning to use ONE in each leg. Anyone else done this? Comments?

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    Senior Member DenH's Avatar
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    Quote Originally Posted by leleven25# View Post
    My SEI use a PAIR of 35-47-7mm fork seals. Two are stacked up in each fork. From the original drawings, that appears to be the original specification. There is no seal retainer, just a press fit. I have set of Pyramid seals that are the same ID and OD but 10mm deep. They are DOUBLE lip seal units. Planning to use ONE in each leg. Anyone else done this? Comments?
    No experience of the forks on a sei,but most forks have some kind of retainer,I rebuilt my 650 tornado with two seals in each fork leg.
    when i was young i was very indecisive,now im older im not so sure.

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    Agreed, but not the SEI. I have three sets of fork legs, all the same, no retainer. I even checked original parts drawing 16A, no cir clip or locking ring....... weird.

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    Quote Originally Posted by leleven25# View Post
    Agreed, but not the SEI. I have three sets of fork legs, all the same, no retainer. I even checked original parts drawing 16A, no cir clip or locking ring....... weird.
    Benelli / Guzzi used double singe lip fork seals as stock fitment. I use the newer double lip seals, 2 per tube in my Moto Guzzi's

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    Jim..... I’ll do the same. Do the Guzzi forks have a retaining clip or are the seals just pressed in place?

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    Quote Originally Posted by leleven25# View Post
    Jim..... I’ll do the same. Do the Guzzi forks have a retaining clip or are the seals just pressed in place?
    The seals are just pressed in,

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    Junior Member RussP's Avatar
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    They are just dust seals, not like other bikes that stop oil from coming out of the dampener. The shock absorber is what dampens the ride. Very little oil goes in the leg. I just got a seal from the local for me (KY) bearing store.

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    Considering how little oil is actually in the fork leg, surprising there are a pair of seals and a dust cap!

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