rpm
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| posted on 25/5/07 at 04:18 PM |
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noisy diff/prop
as in the title, i've got an indy with zx9r engine and sierra lsd, how noisy is the prop/diff normally? when drive is applied even on tick over
on axle stands there is a low grumbling /grating sound, can't seem to pin it down to one area, i've had the diff out and all seems ok, and
have now reinstalled it ,but not connected the drive shafts, but the noise is still there, the prop looks new and i believe came from mk so should be
ok, any ideas?
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Hellfire
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| posted on 25/5/07 at 04:24 PM |
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IMHO it sounds like the diff whine... this is normal - it is solid monted afterall, turn the stereo up a bit! 
Steve
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graememk
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| posted on 25/5/07 at 04:28 PM |
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my lsd is quite loud too. take more packing out of the silencer 
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rpm
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| posted on 25/5/07 at 04:30 PM |
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it's more of a grumbling rumble than a whine and i can't say for sure it's the diff as the sound seems to be resonating all along
the tunnel BTW i need to get this sorted as sva is in 3 weeks
[Edited on 25/5/07 by rpm]
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Wadders
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| posted on 25/5/07 at 06:44 PM |
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Its because you dont have any load on the transmission, mine sounded terrible when it was on axle stands, all kinds of weird knocks and rumbles,
don't be fooled it will be fine once its on the ground and rolling.
Al. 
Originally posted by rpm
it's more of a grumbling rumble than a whine and i can't say for sure it's the diff as the sound seems to be resonating all along
the tunnel BTW i need to get this sorted as sva is in 3 weeks
[Edited on 25/5/07 by rpm]
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DIY Si
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| posted on 25/5/07 at 08:09 PM |
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It's probably a combo of no load, diff noise and the centre bearing. Don't worry too much, BECs make all sorts of funny noises. And just
as you get to one noise, you'll notice another one!
“Let your plans be dark and as impenetratable as night, and when you move, fall like a thunderbolt.”
Sun Tzu, The Art of War
My new blog: http://spritecave.blogspot.co.uk/
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rpm
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| posted on 25/5/07 at 08:34 PM |
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thanks for the reassurance, i've got another prob now to sort, just been running the engine and it's blown two coolant hoses for no
reason! i hate cars sometimes!
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