RE: How to Change your chain and sprocket

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RE: How to Change your chain and sprocket

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RE: How to Change your chain and sprocket - 9/3/2005 10:16:21 PM

Rx7man

Posts: 279
Joined: 8/21/2005
Status: offline

one question about this process.. does it have to be done on the bike? I'm assuming it isbecause otherwise you couldn't get the chain around the swingarm.... i'm thinking of making a small hydraulic press to do the job.. ifI do my math homework i can figure out how much pressure you can put out turning on a 1/2" bolt, and then make a hydraulic jig to do it.. I'm thinking along the lines of an old brake caliper from a car, with a special jig on it to hold the chain could work really nicely I have access to a machine shop at which i could machine all the parts i need.. i'll work on making one and maybe post pics sometime

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Do not do as I do, I decline all liability and responsability for those who copy or attempt to copy what I have done

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(in reply to hikerduane)

Post #: 16

RE: How to Change your chain and sprocket - 9/3/2005 10:47:41 PM

slowpoke

Posts: 518
Joined: 8/6/2005
From: Denver, Colorado
Status: offline

Doesn't need a hydraulic press. The Jumbo chain breaker/ riveter is basically a very strong C-clamp. But the idea is like a hydraulic press. Have you ever pressed out a U-joint by pressing a socket on one side of the joint, and a larger socket on the other side to accept the other side of the joint? The Jumbo works the same way, but uses a pin to push out the roller on the chain and a larger hole on the other side of the chain to accept it. That breaks the chain.

Any C-clamp can press on the side plate, if you make a plate to accept the pins of the master link. Again, a C-clamp can flare the end of the pin if you make a little anvil to press it in. But like I said before, do you want to risk messing up your new chain? I've been working on vehicles since 1969 and the right tool makes a world of difference. Plus, if you buy the Jumbo, you can change your friend's chains for beers and lunch.

(in reply to Rx7man)

Post #: 17

RE: How to Change your chain and sprocket - 9/3/2005 11:07:59 PM

Rx7man

Posts: 279
Joined: 8/21/2005
Status: offline

breaking the chain is the easy part,i grind the plate right off with a die grinder and abrasive wheel, then just give it a twist to pop the plat off it, and it slides right apart, I cut chain every day at work.. but the thing is to get it back together.. I'm sketching on the back of an envelope right now to try and picture my newfangled chain riveter.. i think it should work pretty nicely.. I have milling machines, lathes, and tig welders at my disposal...0

the master links, the pins are peened to one plate already right? you just have to peen one side right?

< Message edited by Rx7man -- 9/3/2005 11:11:03 PM >

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Do not do as I do, I decline all liability and responsability for those who copy or attempt to copy what I have done

Mechanics... Start what they finish

(in reply to slowpoke)

Post #: 18

RE: How to Change your chain and sprocket - 9/4/2005 1:20:02 AM

chainstretcher

Posts: 3848
Joined: 11/5/2004
Status: offline

Unless you're keeping the old chain there's no need to press anything -- just cut it off with die grinder

And as was stated -- the correct tool is usually worth lunch and some beer for your 5 thumbed friends ...

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Post #: 19

RE: How to Change your chain and sprocket - 9/4/2005 1:29:45 AM

Rx7man

Posts: 279
Joined: 8/21/2005
Status: offline

hehe, yep...

here's my idea for a chain riveter..

Imagine a sprocket, but it's just flat rather than round... the teeth are milled into it, but deeper (a full 3/8th deep (roller diameter)), and it's made ot of 3/8th plate (fits 530 chain), a matching clamp plate is made for the other side of the chain to hold it... you lay a piece of 1/8th plate over it with holes drilled exactly the size of the pins 5/8th of an inch apart (fits all 500 series) for the chain pitch.. this plate will lay flat across 3 outer links, the middle one being the master link, and will prevent you from squashing the master link. then with a clamp and pin (shaped to peen the pin), gets clamped around the whole rig, finalizing the installation.. i shall try to draw it up in autocad :)

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Do not do as I do, I decline all liability and responsability for those who copy or attempt to copy what I have done

Mechanics... Start what they finish

(in reply to chainstretcher)

Post #: 20