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xs650 > > General Conversation > > I'm just saying... you know > > machine shop |
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xsjohn Full Member
Joined: Jul 30, 2006 Posts: 5857 Location: North Carolina USSA
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Srinath Full Member
Joined: Sep 10, 2009 Posts: 343 Location: Charlotte NC
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Posted: December 21, 2009, 12:04 pm Post subject: Re: machine shop |
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The reason most ball bearings fail is due to exposure and lack of lubrication, as in, none at all ... maybe the ocassional side loading.
Also this is a 6306 bearing, subbing a 6303 bearing will OK save you $10 per swap, but a 6306 will take more load than a 6303. Also a 6303 is a 15mm ID bearing. This is 30 mm ID, dont see how you can sleeve yourself into that without machining the crank shaft.
The others ... you see the 40X68 bearings are easy to find. The crank is 32mm, so a 4mm wall pipe with 32 ID X 40 OD will get it spaced in to be able to fit a 40X68 ... however I am not experimenting with sleeves etc unless I was without any other choice ... which I am not at that point yet.
Cool.
Srinath.
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yamaman Support Staff
Joined: Jan 04, 2007 Posts: 1638 Location: Perth Western Australia
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Posted: December 21, 2009, 1:55 pm Post subject: Re: machine shop |
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Pretty sure John meant to say 6306
DG3078AN-9 KOYO (stock bearing)
OD 78mm
ID 30mm
Width 19mm
6306
OD 72mm
ID 30mm
Width 19mm
As for the rollers, I'm trying to find out (anyone know?) if a 18R Toyota has a roller crank, maybe even the ball!
www.obrasmechanicos.com/18rg.html
_________________ Its not enough to have an aim in life, you have to pull the trigger! |
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Srinath Full Member
Joined: Sep 10, 2009 Posts: 343 Location: Charlotte NC
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Posted: December 21, 2009, 2:08 pm Post subject: Re: machine shop |
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Yamaman - I will scour that as well.
Right now 2-3 people are to get back to me ... whenever that is ...
Cool.
Srinath.
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Srinath Full Member
Joined: Sep 10, 2009 Posts: 343 Location: Charlotte NC
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Posted: December 21, 2009, 2:19 pm Post subject: Re: machine shop |
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Sorry nope ... generic car garbage ... my mechanic who's split 100's of car motors says he's never seen a crank like the XS ... CLEVITE 77
MS1521P-STD
TOYOTA
1977-1979 Toyota 1.8L 1808cc 16R, 16R-B, 16R-J, 16R-U engines with straight shell bearings.
1977-1988 Toyota 1.9L 1968cc 18R, 18R-B, 18RGEU, 18R-GU, 18R-U engines with straight shell bearings.
Note: Rrequires thrust washer set TW326S, not included.
Cross References: Clevite/Sealed Power MS1521P; Federal Mogul 6658M.
However - no worries, bearings are not made in the dozens or even 100's ... they are made in the millions. Only way to do it. That is why all new everything, uses existing bearings. No one builds a fancy new wheel ... like buell's rim brake wheel and puts a brand new bearing in it, it has the same 6303 the whole remaining wheels in the world have.
The 3 center ones were made in large numbers ... maybe they then killed that totally ... however I seriously doubt it. If there is 1 new bearing, there is a million more ... fine 999,999 more ...
Cool.
Srinath.
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