UK Karting - Notice Board (2-Stroke Karting) : Re: big end cage and rollers when to replace

Notice Board (2-Stroke Karting)

Re: big end cage and rollers when to replace
Posted by 'iant' on 13 Mar 2009 @ 16:53

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iantJoined: October 2001
Total Posts: 3
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I assume you're talking about the big-end bearing ? (ie the bearing between the rod and the crank)

Unless you know how many hours it has done you would be well advised to replace it (and the pin). It's about Ł25 for the parts and about Ł15 to fit and re-balace.

If it goes it will take the rod with it as a minimumm (Ł90+) and you'll still need to spend the Ł40 above for the bearing/pin/etc. If the bearing is at the end of it's life it will still go bang at 9k rpm the only difference between it going at 9k and 15k is how much more of the engine it takes out at the higher revs !!

Even though you're practicing you should still be looking for at least 14-15k rpm.

IanT

Message Thread:

big end cage and rollers when to replace by 'tkmkart' (13 Mar 2009 @ 16:12)

Re: big end cage and rollers when to replace by 'buzzinrussell' (13 Mar 2009 @ 16:33)

Re: big end cage and rollers when to replace by 'buzzinrussell' (13 Mar 2009 @ 16:36)

Re: big end cage and rollers when to replace by 'iant' << You are here!

Re: big end cage and rollers when to replace by 'tkmkart' (13 Mar 2009 @ 21:23)

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