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Slight rattle from the front end annoying

BlackLightning998

Well Known and Active Forum User
VOC Member
#1
Hi,
In the process of running in my Rapide, I have got an annoying rattle from the front end as I am riding along which I think I have tracked down to the spring boxes. It would appear that the inners have been chromed and the outers powder coated. When I grab hold of them and move the chrome inner it moves quite freely laterally several mm and strikes the outer casing giving a "tinny" sound which I think is what I can hear when I'm out riding.

Anyone come across this one before and have a fix for it. I've had a look in the blue book parts diagram MO63 and beyond the spring tension there does not seem to be any kind of sleeve or anything to keep the two parts aligned.

The front forks have been rebuilt in the last year (before I bought her) and knowing the man as I do I would guess new springs have been fitted.

Thanks and regards to all

Stuart
 

peter holmes

Well Known and Active Forum User
VOC Member
#2
Front end rattle

It sounds like your chain oiler A69AS is touching the chain, the sound travels through the upper frame member to the front of the bike.
Good Luck Peter Holmes
 

deejay499

Well Known and Active Forum User
VOC Member
#3
Front end rattle

Might also be worth checking front damper bushes/spacer but should be ok if the forks were rebuilt.deejay499
 

BlackLightning998

Well Known and Active Forum User
VOC Member
#4
It sounds like your chain oiler A69AS is touching the chain, the sound travels through the upper frame member to the front of the bike.
Good Luck Peter Holmes
Hi Peter,

Sounds like the voice of experience. I trimmed the chain oiler back when I fitted it, any idea of how much clearance you need between chain and chain oiler when the bike is resting on a centre stand to maintain clearance when riding?

I got some advice to tie a piece of string around the chromed spring box lower legs and push them up into the upper - didn't stop the noise and the string fell out after a few miles (maybe didn't push it up far enough).

Also got a tip to fit bantam gaiters and pack it with grease, but I'm a poseur I guess and like the non-original look of the chromed lower spring box legs.

Look forward to hearing from you.

Cheers

Stuart
 

mercurycrest

Well Known and Active Forum User
VOC Member
#6
My D Shadow has a click in the front...... It's the Koni top outer sleeve banging against the clutch cable.... 'dove me nuts 'till I grabbed ahold of it
 

BlackLightning998

Well Known and Active Forum User
VOC Member
#7
My D Shadow has a click in the front...... It's the Koni top outer sleeve banging against the clutch cable.... 'dove me nuts 'till I grabbed ahold of it
Thanks - I'll make a point of tying back the cables one by one until I see if this does the trick too - the sound is a little too "tinny" for my mind to be cable striking metal but it is so annoying you never quite know and anything is possible.

These little annoying ones are the worst......

Thanks

Stuart
 

Diogenes

Well Known and Active Forum User
Non-VOC Member
#8
First thing is to see if the noise is really coming from spring boxes.
Get a thin wall plastic tube, cut to length then slit lengthwise.
Slip this up into each spring box, so it prevents metal to metal contact between the inner and the outer boxes.
Short test ride will show if noise has gone.
Remove the plastic tubes.
 

BlackLightning998

Well Known and Active Forum User
VOC Member
#9
First thing is to see if the noise is really coming from spring boxes.
Get a thin wall plastic tube, cut to length then slit lengthwise.
Slip this up into each spring box, so it prevents metal to metal contact between the inner and the outer boxes.
Short test ride will show if noise has gone.
Remove the plastic tubes.
Hi,

Out on the road again today - another 225 faultless miles, great fun (thankfully the sun shone all day around Oxfordshire and Buckinghamshire). The noise is still there, still intermittent and I tried moving all the cables etc by hand whilst I had the noise - to no avail.

I'll give the plastic tubing a go on the spring box legs and see if that does it. It is a really tinny sound, the intermittent types are just the worst aren't they.

Thanks for your help an interest - much appreciated.

Stuart
 

petermb998

Well Known and Active Forum User
VOC Member
#10
rattles

Hi Stuart
Nice to read that you are using a proper bike instead of the usa machine.
The Vincent should be proving that it is a lot of fun and big Grins just like after your test ride on the Duke?
best regards Peter
 

peter holmes

Well Known and Active Forum User
VOC Member
#11
rattle

I am unable to give an optimum clearance between the chain and the oiler, if you can make the chain touch the oiler with your finger then the chances are that it will touch in use and make the noise you describe, it will be more noticable on acceleration or overun, you could remove it and look for witness marks, then leave it off and go for a short ride, at least it will eliminate that possibility. I would leave it off anyway as it is not the best way to lubricate your rear chain, the oil normally finds its way onto the tyre eventually and can give you a bit of a scare when cranked over.
Regards Peter Holmes PS as you are in GX look me up, I am only in Bourne End 01628 528433
 
Last edited:

BlackLightning998

Well Known and Active Forum User
VOC Member
#12
Hi Stuart
Nice to read that you are using a proper bike instead of the usa machine.
The Vincent should be proving that it is a lot of fun and big Grins just like after your test ride on the Duke?
best regards Peter
Hi Peter,

How are you - good seeing you at Brooklands.

I did 225 miles today - great stuff!! Running in nicely, I think I would like the brakes to work a little better before the running in is finished and she goes much faster..

I'm at Mallory for Festival of 1000 Bikes next weekend - are you going?

Stuart
 

BlackLightning998

Well Known and Active Forum User
VOC Member
#13
I am unable to give an optimum clearance between the chain and the oiler, if you can make the chain touch the oiler with your finger then the chances are that it will touch in use and make the noise you describe, it will be more noticable on acceleration or overun, you could remove it and look for witness marks, then leave it off and go for a short ride, at least it will eliminate that possibility. I would leave it off anyway as it is not the best way to lubricate your rear chain, the oil normally finds its way onto the tyre eventually and can give you a bit of a scare when cranked over.
Regards Peter Holmes PS as you are in GX look me up, I am only in Bourne End 01628 528433
Hi Peter,

Thanks for the reply. I think you may be right and I could usefully swap the breather for a blanking plug.

The engine breather is putting a good spray onto the underside and the RFM, as the engine is just running in I have been told that the timed breather will do this until the engine beds down nicely.

I have seen a few bikes with a lovely assmbly of stainless pipes running down the RFM on the left hand side with slash cut ends - and there is a photo of these on the bike in Know Thy Beast - I wonder if one of the parts suppliers does a kit for this?

Do you go to West London Section nights at all?

I normally go for a run on either Saturday's or Sunday morning if ever you fancy - out towards Wallingford via Henley and Reading usually and then back over the hill and back to Marlow.

Cheers

Stuart
 

peter holmes

Well Known and Active Forum User
VOC Member
#14
Hi Peter,

Thanks for the reply. I think you may be right and I could usefully swap the breather for a blanking plug.

The engine breather is putting a good spray onto the underside and the RFM, as the engine is just running in I have been told that the timed breather will do this until the engine beds down nicely.

I have seen a few bikes with a lovely assmbly of stainless pipes running down the RFM on the left hand side with slash cut ends - and there is a photo of these on the bike in Know Thy Beast - I wonder if one of the parts suppliers does a kit for this?

Do you go to West London Section nights at all?

I normally go for a run on either Saturday's or Sunday morning if ever you fancy - out towards Wallingford via Henley and Reading usually and then back over the hill and back to Marlow.

Cheers

Stuart
I do not think you will find those Know Thy Beast breathers anywhere, they are custom made by Eddie Stevens, although not so pretty Ron Kemp at Vin-Parts sells the well proven elephant trunk breather. I am always up for a ride out that way, in fact I need to go out to M+P at Dorchester which would fit in nicely, give us a call to arrange
Regards Peter
 

BlackLightning998

Well Known and Active Forum User
VOC Member
#15
I do not think you will find those Know Thy Beast breathers anywhere, they are custom made by Eddie Stevens, although not so pretty Ron Kemp at Vin-Parts sells the well proven elephant trunk breather. I am always up for a ride out that way, in fact I need to go out to M+P at Dorchester which would fit in nicely, give us a call to arrange
Regards Peter
Hi Peter,

M&P is right next to my pitstop at Foxes Diner.

Won't be next weekend as I am at Festival of 1000 Bikes at Mallory with the Vincent - I'll give you a call the week after.

Cheers

Stuart
 
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