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Supercharger "rattle"


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#1 Foxy

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Posted 26 February 2019 - 02:39 PM

I thought my chains were getting a little rattly so I popped by to see Gavin at Unit 4 to see what he thought. 

 

He said that he thought the noise was coming from the SC not the chains. 

 

I've not heard of anyone having this issue before - is it a known problem and what could the cause be?



#2 Haston

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Posted 26 February 2019 - 03:01 PM

I had an R53 Mini that it sounded like the engine had a bag of marbles rattling around in it and it ended up being the SC had ran dry of oil (common problem on the M45)

 

I ended up listening to it through a screwdriver to work out what it was.



#3 FLD

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Posted 26 February 2019 - 03:30 PM

How about the damper spring in the coupler. These are a known failure on the M62.

#4 Exmantaa

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Posted 26 February 2019 - 03:34 PM

How about the damper spring in the coupler. These are a known failure on the M62.

 

It's more a coupler disc (from plastic) that gives a supercharger rattle when worn. A cheap piece, but first check without drive belt if your noise is gone. (could also be the alternator...)
 



#5 Foxy

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Posted 26 February 2019 - 03:43 PM

 

How about the damper spring in the coupler. These are a known failure on the M62.

 

It's more a coupler disc (from plastic) that gives a supercharger rattle when worn. A cheap piece, but first check without drive belt if your noise is gone. (could also be the alternator...)
 

 

Thanks all. Dot org to the rescue :D 

 

Coupler definitely prime suspect. Symptoms and noise match the descriptions. 

 

chinky chinky



#6 FLD

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Posted 26 February 2019 - 04:47 PM

How about the damper spring in the coupler. These are a known failure on the M62.

 
It's more a coupler disc (from plastic) that gives a supercharger rattle when worn. A cheap piece, but first check without drive belt if your noise is gone. (could also be the alternator...)

 
I thought the coupler had a spring onto the rotors and the upgrade was just a disc.  like this:
http://www.superchar...ge/couplers.jpg

#7 FLD

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Posted 26 February 2019 - 04:49 PM

Linky for foxy
http://www.superchar...page=page&id=57

#8 Foxy

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Posted 26 February 2019 - 05:51 PM

Thanks Matt - I'd fit an OEM if I could find one, but Joe reckons the pattern ones without the spring will be fine thumbsup   :blink:



#9 tommobot

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Posted 26 February 2019 - 06:33 PM

Is there a way to check / top up the oil in the SC?

I feel I should hand in my keys after asking that! :(

#10 Haston

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Posted 26 February 2019 - 07:20 PM

I know you can buy a service kit with oil and syringe for the M45.

I think someone on the Z22SE forum serviced one if you check there


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#11 Foxy

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Posted 26 February 2019 - 07:33 PM

Is there a way to check / top up the oil in the SC?

I feel I should hand in my keys after asking that! :(

AIUI it doesn’t need changing in road cars, so not a stupid question. For track use you can change it by syringing it out. Described in FLDs link above.




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