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Post by rocket on Sept 12, 2010 19:19:05 GMT -5
Ok boys . Here are the pics and they will tell a tale but the outcome is horrible to say the least . I ,ve got her torn down . Took about 5 hrs or more . I will start with the piston photo first . Has a small chunk out of it on the left side . Upper case Crank Yuk Checked the oil lines . All work fine and I cleaned them out . Left the one to show that all 3 had oil in them and the crank also had lot's of oil but the rubber splatter plugged the oil supply to the piston . The other 2 where fine . You can see the differance in the one on the left . Not enough oil getting to it . The rings where tight on the crunched side but did come loose . I have packeged the crank and will be sending it back to Don soon to see what he think happened . There was lot's of oil supply going to all 3 cylinders but somehow the left one got real hot and cooked itself .
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Post by zambia on Sept 12, 2010 19:33:06 GMT -5
Yikes!! Maybe the bearing was spinning in the case until it melted the seal?
Hard luck mike, are the jugs OK?
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Post by rocket on Sept 12, 2010 19:37:47 GMT -5
Yikes!! Maybe the bearing was spinning in the case until it melted the seal? Hard luck mike, are the jugs OK? Jugs are fine Z . I ran my finger nail across the case and felt no groving that a spinning bearing might do . If you look closely you can see that I had enough red loctite on there and it was not blocking any passages but it is covered in melted rubber .
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Post by H2 Dude on Sept 12, 2010 19:42:00 GMT -5
Mike sorry to see those photo's. I see the piece missing from the piston BUT the skirt looks distorted/pushed in or is it the light. Just looks pooched.
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Post by rocket on Sept 12, 2010 19:51:39 GMT -5
Mike sorry to see those photo's. I see the piece missing from the piston BUT the skirt looks distorted/pushed in or is it the light. Just looks pooched. Thansk Ian . Yah , not pretty . The skirt is fine . Just a small chunk out at the top . zambia mentioned s spinning bearing which was also a concern of mine but the case has no scoring on it . Woud'nt a spinning bearing leave a grove in the case ?
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Post by H2 Dude on Sept 12, 2010 19:57:21 GMT -5
There should be a groove or some scoring I would think .
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Post by johnnyc14 on Sept 12, 2010 19:58:58 GMT -5
That's ugly Rocket! My sincere condolences.
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Post by pipe welder on Sept 12, 2010 20:00:57 GMT -5
WOW! Great to see you getting so deep into so fast.
The piston damage I see in the picture looks to be from a small chunk of metal blowin through. So I guess the bearing guts ground to powder causing all that black sludge or is there more piston material damage that we can't see in the photo.
Good thing is that it looks like there's very little destruction.
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Post by rocket on Sept 12, 2010 20:03:23 GMT -5
Yeh it sure is . Ugly as hell . Looks to me like the bearing exploded .
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Post by pipe welder on Sept 12, 2010 20:10:33 GMT -5
Good thing you stoped riding. Sure wouldn't have stayed together for much longer.
Good call you guys made on guessing it was bearing noise.
Sure would be interesting to see what that seal & bearing looks like.
Good work Mike. She'll be good as new soon enough,
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Post by Walms on Sept 12, 2010 20:33:40 GMT -5
It looks like the bearing did spin a bit but if it didn't score the journal, you should be fine. If you happen know a guy with a bore gage, you could always double check what the journals spec out to when the cases are bolted together. It's hard to tell from the pics but it appears like the loctite was bridging a fair gap.
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Post by rocket on Sept 12, 2010 21:39:28 GMT -5
Thanks for all the support and encouragment guys .
I only put the red loctite on the top half and not the bottom . I thought I put enough on but payed close attention as to not block the oil supply holes . Should I have also put some red on the bottom case ? I did not put any loctite there as I was afraid I may block the oiling holes .
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Post by rocket on Sept 12, 2010 21:46:38 GMT -5
It looks like the bearing did spin a bit but if it didn't score the journal, you should be fine. I am guessing here but if the bearing was spining it should have done a lot more damage . If it did spin at all it was probaly when I tried to kick it over after we stopped or just before I shut it down .. It was probably no longer a bearing anymore at that point . At least from the sound I heard and from looking at it in person .
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Post by Curtis on Sept 12, 2010 22:05:40 GMT -5
wow, that does suck, It could always be worse right?
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Post by Walms on Sept 12, 2010 22:08:45 GMT -5
It looks like the bearing did spin a bit but if it didn't score the journal, you should be fine. I am guessing here but if the bearing was spining it should have done a lot more damage . If it did spin at all it was probaly when I tried to kick it over after we stopped or just before I shut it down .. It was probably no longer a bearing anymore at that point . At least from the sound I heard and from looking at it in person . I was going by this photo... The one journal looks like it has aluminum oxide mixed with gas and oil on it. but it may have only spun a couple times IMO, if it didn't spin, the jounal would be clean and sealed like the rest of the jounals.
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