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Oil seal circlip on A65 end feed conversion ? #731467
04/09/18 6:14 pm
04/09/18 6:14 pm
Joined: Dec 2017
Posts: 138
England
F
ferretjuggler Offline OP
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ferretjuggler  Offline OP
BritBike Forum member
F
Joined: Dec 2017
Posts: 138
England
Years ago (like about 1994) I had a job lot of BSA bits which included what I assumed was a Devimead end feed converted inner timing cover.
I didn't have an A65 back then, so the bits slowly got sold/swapped for Triumph parts.
I could have sworn that the quill oil seal was retained by an internal circlip.
Now today I have just received my latest eBay bargain (maybe), a '71 type cover with the Devimead welded on block.
Not as neatly welded as the original one I owned, and definitely no circlip retaining the oil seal (or any groove)
Was I imagining that circlip in the first place ?
I could swear it was there.
I might add that the original engine was used in a racing outfit (and eventually threw the DS rod at speed)

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Re: Oil seal circlip on A65 end feed conversion ? [Re: ferretjuggler] #731490
04/09/18 10:06 pm
04/09/18 10:06 pm
Joined: Jan 2014
Posts: 3,675
Aus
N
NickL Offline
BritBike Forum member
NickL  Offline
BritBike Forum member
N
Joined: Jan 2014
Posts: 3,675
Aus
I've seen them with and without circlips. If the end of the crank is close up to the seal, it cant go anywhere
i assume that's the school of thought, I used circlips but the block was bolted on not welded like srm's one.
As long as the seal can't move back out of it's housing it's ok really.



Re: Oil seal circlip on A65 end feed conversion ? [Re: ferretjuggler] #731579
04/10/18 11:52 pm
04/10/18 11:52 pm
Joined: Aug 2001
Posts: 3,746
argyll. scotland, uk
gavin eisler Offline
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gavin eisler  Offline
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Joined: Aug 2001
Posts: 3,746
argyll. scotland, uk
My devimead has no circlip, a colleague had his converted in the 80s by devimead , that had no circlip, he cut a groove. My oilseal / quill is the earlier small type, they got bigger in the 80s.it stays in OK with a bit of "bearing fit" loctitie to be sure, it is a barsteward to get out if the bearing fit is done right.


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod

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