Essex laser are good for small batch work. Laser Cutting, Laser Cutting Sheet Metal & Stainless Steel, Laser profiling and sheet metal folding, London - Essex Laser
hello would need a drawing to price cost of laser work not my laser wish it was, one per bike can do a rough cost from photos on the web mike are they 1mm or 3mm thick mild steel
Do they work? Ducati used to sell them but stopped around 2005 - JHP used to sell them @ around £14.00 Looking at the fixing points and the way a chain impact would strike it wouldn't seem to without further development. Could be made to work though
I thought that the idea was that, if the chain snapped, the saver would stop the chain bunching up in the void behind the sprocket and guide it through and out to the ground.
I see this sort of thing as opportunistic paranoia. A case saver or fairing saver is one thing, especially if you go on track days and the like, - even then I don't like crash bungs or any of that other stuff. The way I see it this is that if you're worried about your chain snapping and damaging your engine cases, then either replace your chain / or check it more regularly or buy something with a shaft drive. its a bit of baked bean tin cut out with some tin snips, not a parachute and shouldn't be viewed as such.
Normally I would have agreed this but recently I had a perfectly good, perfectly maintained chain go bang on me on my 999. Fortunately the chain just slid away, flicking the rim of the rear wheel lightly as it went. The dealer had no explanation for how this could have occurred - just unlucky/lucky was the verdict.
that's not cool did he fit the chain? I still don't have much faith in the baked bean tin strip though.
Yes, dealer fixed the chain and sprocket as a set. Sprocket showed almost no wear, aside from where teeth had been snapped off. Did the chain snap the teeth off or did the sprocket break and cause the chain to snap? No one knows :Spooky: I have less faith than I did before.
It maybe a thin strip of steel but it stops the chain lifting off the front sprocket if it breaks and so 'guides' it out of the casing and on to the road, otherwise it can (and has done many times) bunch up into the void of the cases with devastating results; i.e. smashed crankcases, bent pushrod, output shaft etc. - stuff that will write the bike off due to the cost of replacement. I know of several destroyed engines from chain breakages but none where a saver was fitted. For 10 (or 20?) quid I think it's a no-brainer, especially if you have a 520 chain conversion on such as a 1098/1198.... Case saver fitted; No case saver fitted, post chain break; And another;
@Chris - sorry I don't know! Not sure what you mean by a joining link. You don't mean the kind of link that you get when you remove or add links, do you? I always use "endless" chains. I assume you mean the join that the factory makes when they manufacture the chain. I didn't notice at the time, sorry.
I should have been more precise - as you said, there is the 'clipped' type joining link and then there is the hand-riveted (hard or soft) type (as opposed to the factory machine riveted remainder of the chain). A high percentage of motorbike chain failures are at either of the above locations and if not here then you would have to look at the whole chain and sprockets far more closely as indeed it would appear to be a mystery. I better add that I am talking about almost all aftermarket chain replacements as a factory fitted 'joining' link would (or ought to be) impossible to identify and i'm sure it's possible that an owner or garage using an identical riveting head to the chain manufacturer could also make it impossible to detect one rivet from another.
There's an old story I was once told : A ships engine won't run and the owner is loosing money with it being stuck in port. He asks all the engineers he knows to come and look at it but none of them can get the engine running. They come in, spend hours inspecting and testing the mechanics with all the latest diagnostic equipment but nothing seems to be wrong with it and they all leave scratching their heads. Eventually, someone mentions that there's an old guy who's been around a lot of old engines and who might be able to help. The ship owner duly gives the man a ring and he agrees to come and have a look tomorrow morning. The next morning an old man arrives at the dock with a small canvas tool bag. He shuffles up the gang plank and into the engine room where the owner stands over him wringing his hands hoping that he can find out whats wrong. After a couple of minutes looking over the engine, the old man reaches into his canvas bag and removed a small hammer. He runs his hand over the engine slowly, pinpoints an area with his finger and gives it a small tap on the engine casing with the hammer. The engine bursts into life and runs sweetly! The owner is astounded and thanks the old man. The old man just waves his hand and says 'No problem. I'll send you the invoice'. The next day the invoice arrives. The ship owner opens it and is astonished to find a total of $10,000. Outraged, he writes back to the old man saying there must be some mistake. Please send me an itemised invoice. 2 days later another envelope arrives. Its the itemised invoice. 'Tap with hammer - $2' 'Knowing where to tap - $9,998'
^ I knew one of them, gone over 20 years now. His name was Harry Manning but re: money charged, he was exactly the opposite when it came to him or more importantly the majority of his customers correctly valuing his worth.
Sev I bought a case saver from Darren- '470 four' if that's his correct name, on the old Ducatisti site. It certainly wasn't made out of a baked bean can. It was lazer cut stainless steel, can't remember the gauge of the steel, but it was substantial, and perfectly made with the fixing holes punched cleanly, and it fitted perfectly. |I can't remember how much it cost, less than £20 though, and having myself occasionally made up brackets in SS and buggering about measuring hole pitches etc, I considered it to be a bargain and potentially good insurance.
I asked Steve to make me some hanger brackets last year. I phoned him a couple of months ago and he said he was really busy but he said he hadn't forgotten. Seems like he's forgot to me lol, 5 months is a long time. Edit: Was very pleased with the frame brace though.
