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Members: 636 | Total Threads: 50,821 | Total Posts: 518,483 Currently Active Users: 1,065 (0 active members) Please welcome our newest member, jaraduke |
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21-04-2014, 07:03 PM | #1 | |
Lord of the Rings
Join Date: May 2013
Location: Norwich
Bike: M900sie
Posts: 5,848
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Quote:
If you spend a few minutes playing around with some card or plastic, based on my drawing, you might come up with something that works after a few attempts. Once you have an accurate pattern, all you have to do is get someone to cut and fold it for you in metal.... Gotta be worth sacrificing a Corn Flakes box?... |
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21-04-2014, 08:23 PM | #2 |
Taking life easy........
Join Date: Feb 2010
Location: Wiltshire
Bike: Other Not a Ducati
Posts: 1,969
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03-02-2020, 11:28 AM | #3 |
Moderator
Join Date: Apr 2008
Location: Moreton-in-Marsh
Bike: M1100evo
Posts: 1,082
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I have one on my EVO and from memory it was an exact fit after taking it off my S4RS.
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IF ALL ELSE FAILS READ THE INSTRUCTIONS Last edited by rollo22; 03-02-2020 at 05:23 PM.. |
12-04-2014, 06:16 PM | #4 |
Bockloks
Join Date: Jan 2012
Location: London
Bike: No Bike Yet!
Posts: 4,601
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Had another go at mine today and it ain't gonna fit. Where the clutch push rod housing sticks out it leaves too little a gap. The saver just about fits in there and even if I could get it micrometer perfect there would be the tiniest gap between chain and saver.
So I'm considering fitting it anyway I figure after a few miles it will all bed in and fit nicely plus even in that less than perfect state it's better than nothing. |
12-04-2014, 09:15 PM | #5 |
Lord of the Rings
Join Date: May 2013
Location: Norwich
Bike: M900sie
Posts: 5,848
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Sorry to hear it's being such a pig Dirty.!
Well done for persisting with it. It sounds like the 600s and 750s are very tight in there. On my 900 the tightest place is against the clutch pushrod housing too, but I am getting a good 3mm or so I would say, with the guard hard against the case at that point. Utopia has mentioned that his is tight on the 750 aswell, but he runs it okay, can't remember if he said there was a witness on the guard or not? I guess if it rubbed all the time it would be a bad thing, but the occasional touch should be okay. |
12-04-2014, 09:50 PM | #6 | |
Bockloks
Join Date: Jan 2012
Location: London
Bike: No Bike Yet!
Posts: 4,601
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Quote:
I'll stick it back in one day then run it round the block a couple of times, check it, couple more times, check it, to see how things shape up when left to themselves |
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21-04-2014, 06:17 PM | #7 |
Bockloks
Join Date: Jan 2012
Location: London
Bike: No Bike Yet!
Posts: 4,601
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Stuck it back in today and did a few miles. Nothing exploded or went bang so far. Will leave it in for a few more then have a look. I think it will be ok though. Might not be perfect but it will give some protection.
This is the gap I had to work with. |
21-04-2014, 06:28 PM | #8 |
Mary Mary Quite Contrary
Join Date: Mar 2012
Location: Berkhamsted
Bike: M796
Posts: 1,398
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Have you ever cleaned that chain?
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#48 |
21-04-2014, 06:53 PM | #9 |
Lord of the Rings
Join Date: May 2013
Location: Norwich
Bike: M900sie
Posts: 5,848
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Mmm... It's tight alright.!
Ironicly there seems to be plenty of room either side of the pushrod boss...And that is where the chain would bunch in the event. I am pondering an embryonic idea... Just wodering if it would be possible to have two guards in there? One going as far as the boss from the top, and thinned down over the boss. and another below, picking up from beneath the top guard, ie, overlapping a bit. (or underlapping). Each guard would need two mounting points each, I was wondering if it would be possible to use the clutch slave screws? This would imply the use of a washer under the third slave screw to level things up, and probably a little spacer in the slave too, for the pushrod..!!! All getting a bit complicated.! It might just keep the chain out of those holes though? |
21-04-2014, 07:07 PM | #10 |
Bockloks
Join Date: Jan 2012
Location: London
Bike: No Bike Yet!
Posts: 4,601
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Whadya mean, that is clean, you can read the writing now. Darren69 shamed me into sprucing it up
Well the case saver is in now and should do that job even bearing in mind the 2 deep score marks the chain will have inevitably cut in by now |
21-04-2014, 07:28 PM | #11 |
Transmaniacon MOC
Join Date: Sep 2013
Location: Sutton In Ashfield
Bike: Multiple Monsters
Posts: 6,029
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Yes, that is clean compared to before and oiled as well. I suppose I better do mine now!
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Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage |
21-04-2014, 08:14 PM | #12 |
No turn left unstoned
Join Date: Jun 2010
Location: leicester
Bike: M750
Posts: 4,546
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My cases looked every bit as tight as that. And with the same nasty hollow just waiting for the chain to bunch up into.
Makes you shudder to think of it, eh ? I was seriously surprised when my current saver fitted so well, and the chain doesn't rub at all when the wheel is turned by hand. When I come down to the bike shed show Dirty, you can try mine for size in your cases if you like. I might even make a copy in stainless (mine's plain steel) so perhaps I could make two if it'll fit your cases too. I gave much thought to fitting a thinner saver in there, including a two-part design and various other crafty schemes, including a couple of prototypes (one of which I'll also bring along, just for interest's sake), but I never came up with anything satisfactory. Lately I've been wondering how well a thin one would work if you could fill the space behind it with some kind of epoxy resin or somesuch....fixed to the saver but loose in the cases (via pva release agent on the cases before smearing the epoxy in there and seriously hoping that it didn't stick). I don't believe that the hammer from the broken chain is the main problem, but more that the chain can lift off the sprocket, bunch up and jam. So maybe such a scheme would be adequate. |
21-04-2014, 08:48 PM | #13 | |
Registered User
Join Date: Sep 2010
Location: Leics
Bike: M900
Posts: 2,848
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Quote:
The damage comes from the buildup of chain that can't escape and gets rammed into the soft crankcase at huge force/speed.
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M900, 916, LeMans II. |
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21-04-2014, 09:36 PM | #14 |
Guest
Posts: n/a
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Gutted Rally !!
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21-04-2014, 09:47 PM | #15 | |
You Are What You Is
Join Date: May 2005
Location: A Foward Location
Bike: S4r
Posts: 1,948
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