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Brian Degulis
Joined: 13 Aug 2012
Posts: 415
Location: United States, Florida,
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 Posted: Wed Feb 27, 2013 6:01 am Post subject: Split Sprockets |
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How much should a split sprocket be tightened? To much and you distort the axle not enough and the clamping force is to low. How do you find the happy medium?
Brian |
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Jeff DeMello
Joined: 13 Sep 2002
Posts: 2213
Location: United States, Pittsburgh Pa,
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| Posted: Wed Feb 27, 2013 6:32 am Post subject: |
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Practice
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Jeff DeMello
Emmick F125 Pavesi |
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Clark Gaynor
Joined: 29 Aug 2002
Posts: 534
Location: United States, Pennsylvania,
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| Posted: Wed Feb 27, 2013 6:55 am Post subject: |
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| Pretend it's a wheel lug. That should do it. Or even a spark plug or cyl. head nut. |
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Jimmy McNeil
Joined: 12 Apr 2006
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Location: United States, California, visalia
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joseph hollinger
Joined: 12 Sep 2002
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Location: United States, California, san francisco
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| Posted: Wed Feb 27, 2013 10:18 am Post subject: |
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righty-tighty, lefty-loosy.
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Brian Degulis
Joined: 13 Aug 2012
Posts: 415
Location: United States, Florida,
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| Posted: Wed Feb 27, 2013 10:31 am Post subject: |
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| Jimmy McNeil wrote: | http://www.fastech-racing.com/goldspeed-428-ergal-split-gears-50mm.html
Zero gap sprockets, tighten all you want. |
That looks like a good answer. The ones I'm using are not 0 gap they're designed to have a gap anmd that's the problem it's pretty easy to over tighten and distort the axle.
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Curtis Cooksey
Advertiser
Joined: 16 Aug 2001
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Jimmy McNeil
Joined: 12 Apr 2006
Posts: 1457
Location: United States, California, visalia
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| Posted: Wed Feb 27, 2013 2:25 pm Post subject: |
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| Quote: | | That looks like a good answer. The ones I'm using are not 0 gap they're designed to have a gap anmd that's the problem it's pretty easy to over tighten and distort the axle. |
I have some with a gap and they're a pain in the butt, If you over tighten them, it'll damage the axle, then you cant use the zero gap sprockets. They will slide to one side, the chain will eventually come off, then you will be boxing up your engine and shipping it to your engine builder for a new case half. Yes this happened recently  |
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Kerry Matthews
Joined: 01 Oct 2008
Posts: 773
Location: United States, California, Sacramento
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| Posted: Wed Feb 27, 2013 4:00 pm Post subject: |
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You guys like those aluminum sprockets? I've always used steel ones, as I was told the aluminum one weren't as good. Never had a problem with the steel ones.
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joseph hollinger
Joined: 12 Sep 2002
Posts: 9474
Location: United States, California, san francisco
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| Posted: Wed Feb 27, 2013 4:01 pm Post subject: |
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| Kerry Matthews wrote: | | You guys like those aluminum sprockets? I've always used steel ones, as I was told the aluminum one weren't as good. Never had a problem with the steel ones. |
The Aluminum ones are better if you like to buy parts all the time.
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Sam Zavaglia
Joined: 23 Nov 2004
Posts: 1181
Location: Australia, Sydney,
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| Posted: Wed Feb 27, 2013 6:06 pm Post subject: |
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| joseph hollinger wrote: |
The Aluminum ones are better if you like to buy parts all the time. |
Buy this;
http://sharkshifter.com/zc/index.php?main_page=product_info&cPath=96_104&products_id=569
Use an offset front sprocket to clear the side of the cases
http://sharkshifter.com/zc/index.php?main_page=product_info&cPath=96_105&products_id=1246
so that you can fit/use this DID X-ring chain. (DID 428VX)
http://www.didchain.com/trialsChains-INFO.html
Tighten all you like, doesn't make mess, Swift alloy sprockets last forever with this chain and alloy sprockets are very light compared to steel. The lube doesn't fling because it sticks to the rubber x-rings, no lube can stick to just steel links on a kart......its all bulldust what you read on chain lube label.
Once you do it, you will never look back.
Hey Joe,
I bet I spend much less than you each season on the drive train and is far better......false economy.
Yes using Alloy sprockets with conventional chain and they will wear much quicker than steel........how about this....since using x-ring chain for the last 2 years, never replaced a single alloy sprocket and all maintain as new.
Don't argue, try it......and yes been on dynojet dyno with zero effect on HP. A standard chain will kill HP once it starts to age due to drying out. 
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Jim McMahon
Joined: 07 Apr 2007
Posts: 2670
Location: United States, St. Paul,
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| Posted: Wed Feb 27, 2013 6:40 pm Post subject: |
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Alum sprockets have been fine for me, naturally of course they wont tolerate very much misalignment or slippage, but otherwise the alum stuff works great.
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Karting Festival @ Blackhawk Farms June 1st-2nd. |
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joseph hollinger
Joined: 12 Sep 2002
Posts: 9474
Location: United States, California, san francisco
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| Posted: Wed Feb 27, 2013 7:26 pm Post subject: |
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| Sam Zavaglia wrote: |
Hey Joe,
I bet I spend much less than you each season on the drive train and is far better......false economy.
Yes using Alloy sprockets with conventional chain and they will wear much quicker than steel........how about this....since using x-ring chain for the last 2 years, never replaced a single alloy sprocket and all maintain as new.
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Even if your story is true, there's no reason to expect that steel sprockets wouldn't last even longer in the same situation. Sprocket weight makes absolutely no difference, so where's the economy?
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Sam Zavaglia
Joined: 23 Nov 2004
Posts: 1181
Location: Australia, Sydney,
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| Posted: Wed Feb 27, 2013 7:35 pm Post subject: |
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The difference is at least 2-3lbs between steel and alloy rear sprocket, that's extra 2-3lbs that you need to rotate and stop.
You can still wear your "steel" sprockets using your standard chain to sharp needle points......think of all the HP it takes to do that. No job is done for free.
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Sam Zavaglia
Joined: 23 Nov 2004
Posts: 1181
Location: Australia, Sydney,
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| Posted: Wed Feb 27, 2013 7:42 pm Post subject: |
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Eddie Lawson's Superkart uses special Alloy rotors to reduce the rotating mass.
These were designed and produced by one very smart cookie.
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