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Engine / Airbox / Exhaust / Fuel Delivery: Discussion of Honda CBR 1100 XX Super Blackbird Engine Modifications, Airbox Modifications, Exhaust Systems, Power Commanders, and Carburetors. | |||||||
Camshaft Failure
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07-24-2008, 6:02 AM
| #1 | ||
| Join Date: Mar 17 2008 Location: UK Bike(s): CBR1100 Posts: 2
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Hi guys I've picked up a FI blackbird motor from ebay with a very unusual failure. The last journal in the inlet camshaft has been starved of oil, picked up and wrecked the head and cam. Its only done 14,000 miles, been dealer serviced since new and came from an un-crashed bike. The failure happened at 65mph in steady traffic after 20mins of running on warm day. I can easily throw another head on the engine but I'm keen to work out what caused the failure as everything else seems fine. My thoughts so far are 1 - possible oil blockage/contamination - possible but unlikely as dealer serviced 2 - oil pump failure - looks ok but will strip anyway - again unlilely 3 - manufacturing defect in head/camshaft - possible but unheard of Any thoughts, opinions or advise on where to go next are welcome thanks jr | ||
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07-24-2008, 7:47 AM
| #2 |
 Join Date: Apr 19 2008 Location: new york Bike(s): 99cbr1100xx,97gsxr1100w,82gs1000sz,99gsf600 Age: 46 Posts: 56
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Well my thought is oil starvation you said last cam journal? if you check the oil circuit you will probably find this is the case and the previous owner either did not change the oil or check level or did not have the proper amount of oil in engine. 
__________________ "AS I SHIFTED INTO 6TH I CAN'T REMEMBER A THING SHE SAID" 1999 REDBIRD givi screen and air visor,genmar risers,corbin gunfighter and lady seat w/osb rest,fender eliminator kit,k&n air filter,black powdercoated wheels.
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07-24-2008, 8:21 AM
| #3 |
| Join Date: Mar 17 2008 Location: UK Bike(s): CBR1100 Posts: 2
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Thnks gixxer Must confess I suspect the same. The previous owner confessed to being a mechanical numpty. The bike was entirely dealer serviced and it was the same dealer that diagnosed the failure ....they said the oil level was fine.....but they would say that wouldnt they  Also beng such a rare failure (as in never heard of it happening ever) it does tend to suggest a human error factor jr |
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07-24-2008, 8:26 AM
| #4 |
| Join Date: Apr 19 2008 Location: new york Bike(s): 99cbr1100xx,97gsxr1100w,82gs1000sz,99gsf600 Age: 46 Posts: 56
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ditto!!!! 
__________________ "AS I SHIFTED INTO 6TH I CAN'T REMEMBER A THING SHE SAID" 1999 REDBIRD givi screen and air visor,genmar risers,corbin gunfighter and lady seat w/osb rest,fender eliminator kit,k&n air filter,black powdercoated wheels.
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07-28-2008, 8:17 AM
| #5 |
| Moderator  Join Date: Aug 31 2007 Location: Seaford, Victoria, Australia Bike(s): 2007 CBR1100XX Age: 41 Posts: 2,031
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Thats sounds the same as the engine from docsevicz. Check out his thread Engine Transplant
__________________ Paul Never let a motorcycle take you somewhere your brain didn't get to three seconds earlier  |
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