Thread: How long before this went BOOM?
06-30-2009, 09:41 AM #1
How long before this went BOOM?
Just caught this while going to rebuild a buddy's top end... This motor has around 50 hours on it... What would cause a thrust washer to wear so prematurely? Ill post a better vid later... this is off my cell but you get the idea...
06-30-2009, 09:44 AM #2
06-30-2009, 09:49 AM #3
cant tell from video,but is the crank pulling apart , was it welded ? mine did that and it was pulling apart.
06-30-2009, 10:05 AM #4
06-30-2009, 10:16 AM #5
looks fine to me
he's a lucky guy that you caught it in time....tick...tick...booommmmm
06-30-2009, 10:23 AM #6
Front of crank walked forward on pin. washers are good, Also when you take apart you will see the front journal of crank rubbing on the case. That will cause lot of speed lose. If you have a ported motor do yourself a favor and get the crank welded.
06-30-2009, 10:40 AM #7
- Join Date
- Jun 2008
- St Clair Shores, MI
What are we looking at here? Isnt' there supposed to be some sideways play in those bearings, what with heat expansion and all? All 3 on mine have some play.
06-30-2009, 10:56 AM #8
06-30-2009, 11:03 AM #9
06-30-2009, 11:04 AM #10
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