Author Topic: Oil leak into outer timing case  (Read 4600 times)

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PeteRae

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Re: Oil leak into outer timing case
« Reply #75 on: 05 February, 2021, 15:14:13 »
Hi Phil,
The one I took off my b40 was flat(ish) see photo!
The replacement i got was also flat.
Looking at a verrrry faded illustration it would appear to be correct....however, thats not to say it's right!!
Pete
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Phil C

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Re: Oil leak into outer timing case
« Reply #76 on: 05 February, 2021, 15:28:53 »
Thanks Pete. So am I right in thinking the washer butts up against the end of the bush (which has the spring slid over it) with its tabs sliding inside the splines on the shaft, and the nut then tightens the washer against the end of the bush?  Phil

Phil C

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Re: Oil leak into outer timing case
« Reply #77 on: 05 February, 2021, 15:34:04 »
Further to my question just now, just to say that the washer is a really rattling fit on the shaft.  The washer's internal dia (the hole in the washer) is too big for the washer to tighten against the ends of the shaft splines, it would only tighten up against the end of the bush.  Phil

Phil C

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Re: Oil leak into outer timing case
« Reply #78 on: 05 February, 2021, 18:10:51 »
And another thing... I don't think the "lockwasher" is a lockwasher really.  For it to lock the nut, one or more tabs need to fold over one of the hex faces on the nut, whilst one or more of the tabs needs to locate in, for example, a spline.  If the tabs just connect with the splines then they're not locking anything except the washer itself to the shaft.  Are they?   Phil.

PeteRae

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Re: Oil leak into outer timing case
« Reply #79 on: 05 February, 2021, 18:12:57 »
Whether mine is correct or not Phil, but I've assembled it in good old Haynes terms...assembly is the reverse of disassembly  ;)
In order of assembly....ratchet with bush slid inside, bush will protrude.
Spring, then lockwasher which, to my mind, doesn't really lock as you say.
Then nut.

I got a new spring just in case and you can certainly tell the difference!
The lockwasher seems to be more of a friction fit as it doesn't appear to lock into the bushing.....unless I'm missing something?
Pretty sure someone will know.

Problem I'm having at the moment is that the ratchet teeth and the quadrant teeth don't initially mesh properly unless I rock the bike. I've profiled the first quadrant tooth but it doesn't seem to have helped.....onwards and upwards!
Pete.
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PeteRae

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Re: Oil leak into outer timing case
« Reply #80 on: 05 February, 2021, 19:01:33 »
Phil,
I've just been out to the garage and had a closer look at the lockwasher arrangement.
One pic is washer on splines...obviously ratchet etc missing. It is a tight fit on the splined shaft but you've got to bend the tabs in slightly.
Other pic is it all together and nipped up with the windy then tabbed over a flat on the big nut.
Seems like its a case of check, check and check again!
Pete
« Last Edit: 05 February, 2021, 19:03:04 by PeteRae »
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Bess

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Re: Oil leak into outer timing case
« Reply #81 on: 05 February, 2021, 19:22:19 »
Hi Phil,
           It looks suspiciously like the old is a starlock washer not a tab washer.

Best wishes...

Phil C

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Re: Oil leak into outer timing case
« Reply #82 on: 05 February, 2021, 19:32:29 »
Thanks for the photos Pete, so of course it is a lockwasher, seems so obvious now! On yours, does the bush come to the end of the splines, so that when fitting with ratchet etc the washer doesn't go over the splined shaft but just goes up to the edge of it?  Phil

PeteRae

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Re: Oil leak into outer timing case
« Reply #83 on: 05 February, 2021, 19:49:40 »
Aye, it almost just sits against the end of the bush. There's only a teeny teeny section of spline. Try it without the ratchet etc like in my photo just to make sure it will locate.
When it's all together the washer will just sit in place until you get the nut on....hopefully ....
Pete
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Phil C

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Re: Oil leak into outer timing case
« Reply #84 on: 05 February, 2021, 20:22:43 »
But the tabs will protrude inwards slightly and so engage a little bit in the splines?

PeteRae

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Re: Oil leak into outer timing case
« Reply #85 on: 05 February, 2021, 20:51:25 »
correct.
You might have to tweak them a bit with some long nosed pliers. Bit of trial and error.
Pete.
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Phil C

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Re: Oil leak into outer timing case
« Reply #86 on: 05 February, 2021, 21:02:36 »
Brilliant. Thanks Pete and everyone.  Phil

Phil C

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Re: Oil leak into outer timing case
« Reply #87 on: 06 February, 2021, 15:19:01 »
When tightening, what's the best way to stop the shaft turning? Phil

PeteRae

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Re: Oil leak into outer timing case
« Reply #88 on: 06 February, 2021, 17:54:17 »
Think you need to somehow jam the mainshaft Phil.
Whether with rags or something of the like.
I use a windy ratchet which spins it up real quick, without the need to jam it, with plenty of torque, but I realise that not everyone has one.
Pete
« Last Edit: 06 February, 2021, 17:56:28 by PeteRae »
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Phil C

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Re: Oil leak into outer timing case
« Reply #89 on: 06 February, 2021, 18:37:41 »
So I guess I need to jam it at the clutch, ie in the primary ghaincase? Putting a rag in the cog next to the kickstart ratchet just results in  the shaft turning inside it. Phil