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 Reaction rod

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handyandy
Carlotto
Carlotto


Posts : 44
Join date : 2014-11-19

PostSubject: Reaction rod   Mon Apr 13, 2015 1:03 pm

So my 2006 GRiSO has been making a metallic clunking noise recently, at low speeds when rolling off and then back on the throttle and especially when changing down through the lower gears. It is a similar effect to having a cush drive rubber wear out on a chain driven bike and also occurs if I release the clutch lever too quickly when changing. Town riding is a real pain! It may be doing it at higher speeds but its difficult to hear with the wind noise. My pillion also experiences a vibration on the left peg.
I have had no chance to dismantle anything but I have found that if I grip the reaction rod I can induce a clicking noise at the swing arm end by giving it a sharp push and pull action. i'm fairly convinced that this would be magnified under riding load and that this is the cause of my problem. There was a thread on Guzzitech with a similar theme but it the guy never posted a conclusion Rolling Eyes
Anyone think I'm barking up the wrong tree here?
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f-man
Grignapoco
Grignapoco


Posts : 172
Join date : 2015-01-14
Age : 49

PostSubject: Re: Reaction rod   Mon Apr 13, 2015 1:59 pm

You`re right.

It´s the front bushing of the reaction rod. In the parts list it´s no. 7 on the shaft drive. It´s about 18 Euro and easy to change.

Sven
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ghezzi
Fra Cristoforo
Fra Cristoforo


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Age : 59

PostSubject: Re: Reaction rod   Mon Apr 13, 2015 2:28 pm

But don't replace it with the original 2006 part, you need the later Stelvio part #, its called the Silent Block.
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Pete Roper
GRiSO
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PostSubject: Re: Reaction rod   Mon Apr 13, 2015 5:10 pm

Part # 883045
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handyandy
Carlotto
Carlotto


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PostSubject: Re: Reaction rod   Mon Apr 13, 2015 9:28 pm

Many thanks for your help guys, I'll get one on order...... Smile
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Fissionmaker
Tanabuso
Tanabuso


Posts : 80
Join date : 2015-03-30

PostSubject: Re: Reaction rod   Tue Apr 14, 2015 10:04 am

Anyone ridden without said rod in place?
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Pete Roper
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PostSubject: Re: Reaction rod   Tue Apr 14, 2015 12:00 pm

Don't even think about it!
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Fissionmaker
Tanabuso
Tanabuso


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PostSubject: Re: Reaction rod   Tue Apr 14, 2015 7:24 pm

Pete Roper wrote:
Don't even think about it!
Well does it buck you off or something?
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ghezzi
Fra Cristoforo
Fra Cristoforo


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PostSubject: Re: Reaction rod   Tue Apr 14, 2015 7:34 pm

Nah!
It'll just flog the fuck out of ya diff gears and housing ......................... affraid
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Pete Roper
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PostSubject: Re: Reaction rod   Tue Apr 14, 2015 9:10 pm

The whole point of having a reactive drive is to separate the drive from the suspension. The torsional forces of the drive are fed directly to the frame allowing the suspension to work without interference. If you disconnect the rod the reactive bodge will try to spin and may well smash the cases.

Pete
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handyandy
Carlotto
Carlotto


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Join date : 2014-11-19

PostSubject: Re: Reaction rod   Wed Apr 15, 2015 8:29 am

ghezzi wrote:
But don't replace it with the original 2006 part, you need the later Stelvio part #, its called the Silent Block.

Cool! Would I need to order the spacer (no.4 in the diagram below) as well?


[You must be registered and logged in to see this image.]
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Pete Roper
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PostSubject: Re: Reaction rod   Wed Apr 15, 2015 9:22 am

It should already be there.
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ghezzi
Fra Cristoforo
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PostSubject: Re: Reaction rod   Wed Apr 15, 2015 2:40 pm

Just No. 7, its all you need. Have a mechanic fit it, unless you have a press or are very ingenious or mechanically minded.
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handyandy
Carlotto
Carlotto


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Join date : 2014-11-19

PostSubject: Re: Reaction rod   Wed Apr 15, 2015 9:19 pm

ghezzi wrote:
Just No. 7, its all you need. Have a mechanic fit it, unless you have a press or are very ingenious or mechanically minded.

Well its a "no" to all three so I'll heed your advice! Wink
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WCB
Biondino
Biondino


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PostSubject: Re: Reaction rod   Wed Apr 22, 2015 5:16 am

Interesting. My wife's GRiSO has made that exact noise since her SE was new. I assumed that it was normal for a GRiSO. I'd never heard it on the Stelvio and just assumed it was particular to the GRiSO. I'll have to check hers out.

Can you press that bushing in with a clamp or does it require a much more aggressive press?
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Pete Roper
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PostSubject: Re: Reaction rod   Wed Apr 22, 2015 10:14 am

I'd imagine you could do it with a big vice and a suitably sized pipe but a press would be a whole lot easier.

Pete
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handyandy
Carlotto
Carlotto


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PostSubject: Re: Reaction rod   Sat May 16, 2015 1:02 am

Just as a follow up, I have replaced the original bush with the silent block, and can report a marked improvement in gear change and its sorted the low speed roll off/on issue. Well worth doing in my case.
Probably a good idea to take the arm to a workshop with a press (which is what I did), as the guy said it was a bit of a bugger to do!

The old one is on the left of the pic.....

  [You must be registered and logged in to see this image.]
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Josh.C
Grignapoco
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PostSubject: Re: Reaction rod   Sat May 16, 2015 2:12 am

Is this silent block a recommended swap for all GRiSO's? I have a 2010 SE.
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handyandy
Carlotto
Carlotto


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PostSubject: Re: Reaction rod   Sat May 16, 2015 5:23 am

Josh.C wrote:
Is this silent block a recommended swap for all GRiSO's? I have a 2010 SE.

It should be fitted as standard on your model as far as I know
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keenerkeen07
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PostSubject: Re: Reaction rod   Sat May 16, 2015 6:30 am

hey nice fix handyandy, where did you get that silent block from ?
cheers
Keener
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handyandy
Carlotto
Carlotto


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PostSubject: Re: Reaction rod   Sat May 16, 2015 6:37 am

keenerkeen07 wrote:
hey nice fix handyandy, where did you get that silent block from ?
cheers
Keener


Got it from Stein-Dinse

Took about 4 days to arrive in the UK
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pauldaytona
Fra Cristoforo
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PostSubject: Re: Reaction rod   Sat May 16, 2015 12:06 pm

why not your local dealer? it's a stock part. for stelvio
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handyandy
Carlotto
Carlotto


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Join date : 2014-11-19

PostSubject: Re: Reaction rod   Sat May 16, 2015 12:56 pm

pauldaytona wrote:
why not your local dealer? it's a stock part. for stelvio

They reckoned it would take about a month to get one from Piaggio  Mad

I tried Gutsibits and Suttons - same problem.....
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little750
Grignapoco
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PostSubject: Re: Reaction rod   Sat May 16, 2015 3:14 pm

I got mine at [You must be registered and logged in to see this link.] in Falkirk two days.
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Pete Roper
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PostSubject: Re: Reaction rod   Sat May 16, 2015 3:40 pm

Unless the UK importer keeps zero stock I really can't see why it takes so long to get stuff? It's not letting ke the UK is a long way away from Italy?

Pete
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PostSubject: Re: Reaction rod   Today at 8:37 pm

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