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R53 Cooper S cold rattle HELP
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Default R53 Cooper S cold rattle HELP - 12th January 2014, 10:24 PM

I recently got my 2004 r53 Cooper S and today it started making a scary rattle when cold. The rattle is more of a 'tak tak tak' noise and gets faster with the engine revs. It seems to be coming from the drivers side of the engine and faded away within a couple of seconds as soon as the temp reached 1/4 (after 3 minutes of driving). I instantly thought 'death rattle' but after a quick google it appears that's more of an R56 problem and it goes away within a few seconds. Am I correct? Any ideas what it could be? Oil level seems to be ok too.


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Default 13th January 2014, 01:09 AM

i would check the crank pulley (harmonic balancer), these are dampened and the rubber can split, there is a pic of a major fail here
Super Damper Crank Pulley R53 - Way Motor Works

if its failed or cracking you can replace with a stock or one like in the link which are dampened, i have a kavs oversized which is non dampened.

also check the belt tensioner, belt, and other pulleys for alignment/play.


  
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Default R53 Cooper S cold rattle HELP - 13th January 2014, 10:12 AM

My car makes like a swish noise when cold, I thought it was a tensioner but a mechanic told me it was just a dry belt? Sorry for the thread high jack but another person told me it could be a pulley lol seems to clear up when I've been driving a while but yesterday it was really loud and quite embarrassing when I was at a drive thru lol
  
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Default 15th January 2014, 02:41 PM

Quote:
Originally Posted by ssharple2001 View Post
I recently got my 2004 r53 Cooper S and today it started making a scary rattle when cold. The rattle is more of a 'tak tak tak' noise and gets faster with the engine revs. It seems to be coming from the drivers side of the engine and faded away within a couple of seconds as soon as the temp reached 1/4 (after 3 minutes of driving). I instantly thought 'death rattle' but after a quick google it appears that's more of an R56 problem and it goes away within a few seconds. Am I correct? Any ideas what it could be? Oil level seems to be ok too.


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Might not be the so called "Death Rattle" that the R56 get, but the R53 chain tensioners do have these issues and your experience is one of the symptoms.

It only costs around 30 for the chain tensioner and its not a b*tch to change so may as well give that a try!


R53: Teflon Supercharger, KAVS -17% SC Pulley, KAVS +2% Lightened CP, Newman PH2 Fast Road Cam, Focus ST 380cc Injectors, 1320 Optimum BPV, GRS 'Motorsport Version' IC, MSD Coil Pack + Magnecor KV85 Leads, Orranje Stealth CAI, OBX-R 4-2-1 Manifold, Janspeed "One Ball" Cat-Back Exhaust with Custom Pro-Speed Decat, Custom DNA Remap
  
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Default R53 Cooper S cold rattle HELP - 18th January 2014, 06:35 PM

Thanks for all the replies. I think a trip to a mini specialist may be my next step. I'm a bit scared of messing with the timing chain myself - all that TDC stuff goes right over my head and I'd be gutted if I messed it up and screwed the engine!


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Default R53 Cooper S cold rattle HELP - 20th January 2014, 12:14 AM

Well it's sounding like a tractor again tonight. I've had a look around and i think I've found a guide which looks not too scary. Is this the correct method - http://www.minitorque.com/forum/f24/...x-guide-35785/


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Default 20th January 2014, 01:57 PM

The 'death rattle' on the r53 is more of a 'loud fart rattle' on the r53 - it only costs about 50 to fix

Check out my videos on youtube as my r53 had most of the cold start rattles and they were all replaced: could be timing chain tensioner, hydraulic lifters, crank pulley or aux drive tensioner.
  
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Default R53 Cooper S cold rattle HELP - 5th March 2014, 05:49 PM

I changed my timing chain tensioner and the cold rattle seems to have gone away!! But now I've got a loud rattle at higher revs (over 4k rpm).
Any more ideas anyone?
I've tried to check my oil levels but I HATE the R53 dipstick, the car definitely has an oil leak but seems to always have the same amount of oil according to the crappy dipstick?!?


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Default R53 Cooper S cold rattle HELP - 5th March 2014, 06:02 PM

And (yet) another symptom... When stationery in neutral, if I blip the accelerator there's a brief air sucking sound before the car revs, kinda sounds like the K&N I had on my old Metro many moons ago.
I think it's also popping from the exhaust a bit more than normal too.


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Re: R53 Cooper S cold rattle HELP
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Default Re: R53 Cooper S cold rattle HELP - 15th March 2014, 09:38 PM

Quote:
Originally Posted by ssharple2001 View Post
I changed my timing chain tensioner and the cold rattle seems to have gone away!! But now I've got a loud rattle at higher revs (over 4k rpm).
Any more ideas anyone?
I've tried to check my oil levels but I HATE the R53 dipstick, the car definitely has an oil leak but seems to always have the same amount of oil according to the crappy dipstick?!?


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That could be your crank pulley and/or belt tensioner damper failing, will be more n noticeable at higher revs due to those components being under more strain...





Quote:
Originally Posted by ssharple2001 View Post
And (yet) another symptom... When stationery in neutral, if I blip the accelerator there's a brief air sucking sound before the car revs, kinda sounds like the K&N I had on my old Metro many moons ago.
I think it's also popping from the exhaust a bit more than normal too.


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I have this, not sure if its a problem or just the induction sucking in air as I have an Orranje stealth CAI...

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R53: Teflon Supercharger, KAVS -17% SC Pulley, KAVS +2% Lightened CP, Newman PH2 Fast Road Cam, Focus ST 380cc Injectors, 1320 Optimum BPV, GRS 'Motorsport Version' IC, MSD Coil Pack + Magnecor KV85 Leads, Orranje Stealth CAI, OBX-R 4-2-1 Manifold, Janspeed "One Ball" Cat-Back Exhaust with Custom Pro-Speed Decat, Custom DNA Remap
  
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