LBMEFM
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| posted on 4/1/09 at 08:43 PM |
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Engine noise
I know it's difficult to diagnose engine problems without hearing them so this is a bit of a long shot. My Fireblade runs very smoothly with
clean exhaust and no smoke. Performance seems ok too. However, there is a type of metalic scraping noise at the same speed as the engine revs. Any
commen faults these engines suffer from.
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A1
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| posted on 4/1/09 at 09:06 PM |
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are your cams etc okay? you could try finding the noise with a screwdriver or bit of bar to listen for it...
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jonesier1
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| posted on 4/1/09 at 09:23 PM |
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engine noise
cams turn at twice engine speed,so if the noise is intime with rpm then prob not cams.
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daviep
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| posted on 4/1/09 at 10:55 PM |
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quote:
Originally posted by jonesier1
cams turn at twice engine speed.
NO THEY DON'T!!!
Cam turns at 1/2 engine speed.
The screwdriver/stethoscope idea as mentioned often works well.
Cheers
Davie
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bigrich
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| posted on 4/1/09 at 11:36 PM |
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camchain tensioner or slipper pad fractured, does the noise reduce or clear at higher revs
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A pint for the gent and a white wine/fruit based drink for the lady. Those are the rules
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maximill666
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| posted on 5/1/09 at 01:18 AM |
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893 & 918cc fireblade motors suffer from carb chatter, where the tolerance on the carb sliders is so large they chatter at low rpm & the noise
goes away above 5k rpm.
Also the 918cc motors suffer from piston slap
Both are common fireblade traits & nothing to worry about
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Bobyspit
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| posted on 5/1/09 at 03:14 AM |
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What Blade engine?
Where in the engine is the noise coming from? is there metal filings in your oil?
Rob
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