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 Knock, knock, knock, knock, knock... 
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2CV Fan

Joined: August 27th, 2013, 1:32 pm
Posts: 30
Post Knock, knock, knock, knock, knock...
Ooh 'eck. Speed related repetitive knocking coming form somewhere. I'm thinking 2cv joint or wheel/suspension issue - what might it be?


September 5th, 2013, 10:06 pm
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Firing on two.

Joined: April 22nd, 2009, 11:06 pm
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Location: Ecosse
Post Re: Knock, knock, knock, knock, knock...
swollen seam on the front wheel - have you been messing round with wheels lately or is it back on the road after a long layup?

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September 5th, 2013, 10:12 pm
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Firing on two.

Joined: April 27th, 2012, 6:48 pm
Posts: 709
Post Re: Knock, knock, knock, knock, knock...
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Last edited by ayjay on September 6th, 2013, 1:18 pm, edited 1 time in total.



September 5th, 2013, 11:20 pm
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viking bastard
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Joined: April 18th, 2009, 11:43 am
Posts: 2424
Location: Meneac, Bretagne France
Post Re: Knock, knock, knock, knock, knock...
A friend of mine, rang telling about this serious knocking while driving. He didn't find anything so decided to strip the engine. When finished and not finding anything wrong, began putting it back together only to discover that the knocking came from the front exhaust muffler knocking on the chassis :roll:

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September 6th, 2013, 8:39 am
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Firing on two.
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Joined: February 22nd, 2012, 10:34 am
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Location: Greece
Post Re: Knock, knock, knock, knock, knock...
Is it engine speed related or wheel speed related?
If you press the clutch remains the same?
What if you engage another gear?
Are the 2cv joints without (much) play?
What's the frequency of this knocking and when it is changing?

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September 6th, 2013, 9:44 am
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2CV Fan

Joined: August 27th, 2013, 1:32 pm
Posts: 30
Post Re: Knock, knock, knock, knock, knock...
It's wheel speed related, we've had the car a month and done 1200 miles in it. Was fine yesterday and just as I set off in it the knocking became apparent. My wife drove it earlier in the day and reckons it was fine.

I'll jack it up and spin each wheel independently and report back.

Cheers!


September 6th, 2013, 10:09 am
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Firing on two.
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Joined: March 24th, 2009, 9:18 pm
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Location: 15340 Mourjou France
Post Re: Knock, knock, knock, knock, knock...
You may not get the knock when it's jacked up: it may need a bit of weight on the wheel.

Just saying ......

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September 6th, 2013, 12:58 pm
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2CV Fan

Joined: August 27th, 2013, 1:32 pm
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Post Re: Knock, knock, knock, knock, knock...
Bloody hell! It was loose wheel nuts!


September 6th, 2013, 2:32 pm
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Firing on two.
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Joined: June 19th, 2010, 8:40 pm
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Post Re: Knock, knock, knock, knock, knock...
Sideways Tim wrote:
Bloody hell! It was loose wheel nuts!


Always think of the obvious first ;)

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September 6th, 2013, 2:48 pm
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Firing on two.
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Joined: February 22nd, 2012, 10:34 am
Posts: 418
Location: Greece
Post Re: Knock, knock, knock, knock, knock...
Wait....
Did the knock disapeared?

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September 7th, 2013, 11:10 am
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