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Post by 4ce on May 9, 2021 20:10:25 GMT 1
Hi All
Had my crank rebuilt and it came with new LC little end bearings, fitted the DT175 pistons today and you can move them half an inch side to side.
Should I have fitted DT175 Little ends, are they wider than LC bearings, is this side to side play acceptable?
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Post by ianr4863 on May 9, 2021 20:47:04 GMT 1
Im almost certain that you use 350LC small end bearings .
Have you been supplied with 250LC bearings ?
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Post by 4ce on May 9, 2021 20:55:56 GMT 1
Yes I got 250LC bearings with the crank. But have fitted YPVS bearings and still have side to side movement.
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Post by dave1963 on May 9, 2021 21:41:30 GMT 1
Make sure you use 350 bearings
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Post by 4ce on May 9, 2021 22:34:01 GMT 1
Thanks
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Post by beardy on May 10, 2021 7:52:31 GMT 1
Aren’t small end bearings the same width as the little end?
Have never given it any thought before but surely the barrel takes care of side to side piston movement by centralising the piston in regard to the little end?
Or am I missing something fundamental?
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Post by midlifecrisisrd on May 10, 2021 9:03:02 GMT 1
Little end should be the width of the gap in the piston the bearing sits in
It is usually wider that the con rod small end eye. The bore holds the piston central
If however the bearing is smaller than the piston gap it is way wrong
Steve
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Post by dave1963 on May 10, 2021 11:06:54 GMT 1
I had little end fail big time when i was supplied 250 bearings instead of 350 on ebay . when i rebuilt it did a couple of thousand miles but the end float wore the cage through and needles came out it destroyed topend and crank be carefull not much different to look at
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Post by beardy on May 10, 2021 15:04:35 GMT 1
Little end should be the width of the gap in the piston the bearing sits in It is usually wider that the con rod small end eye. The bore holds the piston central If however the bearing is smaller than the piston gap it is way wrong [br Thanks. You’ve actually said what I should have said 😂 |
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