Annoying ratle on V7 front end! |
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Wildhenry
Senior Member Joined: 12 Apr 2016 Location: Brighton UK Status: Offline Points: 89 |
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Posted: 26 Dec 2017 at 16:08 |
Hey Happsy,
Thanks for your ideas on the problem but it was sorted out sometime ago. Problem: rattling floating disc... solution: replace the worn bobbins. Result :.....No more rattles! Happy riding for 2018! Wildhenry. |
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happsy
Falcone Joined: 05 Jan 2016 Location: Gothenburg SE. Status: Offline Points: 58 |
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It could be cavitation of the oil in the forks, if it is just being heard at high loads there may be a shortage of oil in the forks. If it is cavitation then it could also be bad quality valve discs in the fork pistons.
I am a chassis engineer for a major OEM car maker and have had this issue with brand new vehicles, turned out the sub supplier to suspension supplier had let their quality control slip.
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happsy, Moto Guzzi V7II Special.
Solex 3800 x 2 |
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Wildhenry
Senior Member Joined: 12 Apr 2016 Location: Brighton UK Status: Offline Points: 89 |
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That's OK johnno......seeing red is better than seeing nothing!
All the best. |
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johnno
Senior Member Joined: 19 Jul 2014 Location: loughborough uk Status: Online Points: 5582 |
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1100 sport corsa , Yam R1, guzzi 650tt rider
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Wildhenry
Senior Member Joined: 12 Apr 2016 Location: Brighton UK Status: Offline Points: 89 |
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My apologies to all those folk I seem to have offended!
I do appreciate it's difficult to diagnose a problem without looking at the bike and obviously some will get it wrong, so once again my apologies and thank you for all your help. Wildhenry. |
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Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
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Hear hear . If you don't want answers even well intentioned ones that aren't correct,don't ask questions.
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TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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It is always very difficult to diagnose problems at a distance when the only information is the written word.
All the various responses given were done with the best intentions and invariably some will not be the right answer. But please don't knock those who tried to help. |
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Brian.
Better 5 minutes late in this world than years early in the next. |
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Adam
Senior Member Joined: 19 Jul 2017 Location: UK Status: Offline Points: 127 |
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I knew what was causing the problem but decided not to tell you in case I was wrong.
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Wildhenry
Senior Member Joined: 12 Apr 2016 Location: Brighton UK Status: Offline Points: 89 |
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Hey back off dude...there is no need to get aggressive with your 'Dick talk'
Apologies if you have been mortally wounded by my comments ...I reckon it says more about you than it does about me! Forums are really useful and I really do appreciate the help but sometimes some people don't know what the hell they are talkin' about! Best wishes and a safe ride! W. |
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johnno
Senior Member Joined: 19 Jul 2014 Location: loughborough uk Status: Online Points: 5582 |
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Without checking a bike yourself it's guess work and folk give ideas to try and help you , personally I won't give any help to dicks again
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1100 sport corsa , Yam R1, guzzi 650tt rider
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Andyb
Senior Member Joined: 02 Jul 2016 Location: Nottinghamshire Status: Offline Points: 602 |
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Well, is it really a problem?
As I said in earlier posts, the front disc on my R100R BMW rattles, and probably always will. Annoying, but I can live with it......but I don’t think it means there is a safety issue? Yet. Like you, it is frustrating to read posts from peope who know all the answers but unfortunately their answers are wrong......just a forum thing I guess, Andyb Edited by Andyb - 28 Sep 2017 at 19:57 |
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Wildhenry
Senior Member Joined: 12 Apr 2016 Location: Brighton UK Status: Offline Points: 89 |
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Hi all,
It's not a Guzzi quality control issue ....it's Brembo! Ducati, BMW, Moto Guzzi and all other manufacturers that use Brembo all have the 'rattle disc' problem. According to my local mechanic this is a very common problem with Brembo brake discs. How come it's taken me all this time to locate what it was? All the incorrect information/ideas on this forum didn't help! (ie: worn head race bearings ect ect) Anyway I'm pleased to say that all is now well and I hope this post will quickly solve the problem for others who might have it. Cheers, Wildhenry. |
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motopete
Senior Member Joined: 18 Aug 2015 Location: Notts Status: Offline Points: 532 |
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Intit funny - mine stopped rattling from the moment I started reading your post Wildhenry!
At least I know the answer if/when it starts again .
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Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
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Very interesting. And congrats
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"Chicken nuggets don't dance on a Tuesday."
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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Hopefully this will help others with this problem. Does make you wonder about the Guzzi quality control though.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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