Author Topic: alternator plunger project  (Read 686 times)

Online edboy

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Re: alternator plunger project
« Reply #15 on: 28.07. 2020 00:14 »
hi kiwi  thanks for suggestions. i m waiting to rebuild bottom end and then sort out sprockets and chain line before taking on the outer cover. a belt drive would solve oil issues but i want to fit a clutch shock absorber. i take your point about the 3  front screws which are in the wrong place so may seal up the cover permanently and cut a large clutch access hole like an ariel. the outer cover does present a problem as i want an oil bath, a primary breather ,a stator lead cable and clutch and rotor cutouts.
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Online edboy

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Re: alternator plunger project
« Reply #16 on: 06.08. 2020 23:33 »
the photos show where i m at with the alternator project.
going for the triumph duplex clutch was major problems. the chainwheel was too large . the standard plunger chainwheel needed a 2mm cut to fit the triumph centre outer race and all the clutch plates now have to be machined to fit. the standard bsa plunger clutch would fit  exactly but thre would be no shock absorber.
the triumph duplex engine sprocket was one tooth larger so the chain needed one extra link. however i fitted the sprocket back to front against a later bevelled spacer with oil seal and the chain lined up perfectly.
still lots of work to do but check out photos for general idea.
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Online muskrat

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Re: alternator plunger project
« Reply #17 on: 07.08. 2020 01:20 »
Clever little vegimite. Fun re-designing things isn't it?
Cheers
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Online RDfella

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Re: alternator plunger project
« Reply #18 on: 07.08. 2020 10:17 »
No way out of fitting that cranked link?  They are at best 75% as strong as a normal link. I've had so many fail I refuse to use them now.
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Online edboy

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Re: alternator plunger project
« Reply #19 on: 08.08. 2020 12:22 »
i agree about the cranked link . but the chain was too taught without it. i think after a  few thousand miles the chain will stretch a little and i can swop it  for a strait link.
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Online chaterlea25

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Re: alternator plunger project
« Reply #20 on: 08.08. 2020 14:07 »
Hi edboy
You could consider using the front alternator mounting studs to secure the primary case as on late triumphs ?

John
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