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 Post subject: R53 Timing Chain Noise
PostPosted: Tue Oct 17, 2017 6:05 am 
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848cc
848cc

Joined: Thu Aug 02, 2007 10:37 pm
Posts: 43
Hi All,

I have a 2002 JCW with 180kms. It makes a noise at low revs, but high load (in 5th or 6th pulling up a hill) like a high pitch ticking that is not consistent and when you back off the throttle it drops away.

it sometimes makes a little rattle on a cold morning also. I replaced the tensioner a few months back and it helped a bit but I wonder if the whole job needs doing.

does this sound like timing chain?

Thanks

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PostPosted: Tue Oct 17, 2017 6:14 am 
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1275cc
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Joined: Sun Apr 29, 2012 1:19 pm
Posts: 2487
Location: Wollongong, NSW
First noise from your description seems like pinging (engine knocking / pre detonation). Normally from having low octane or poor quality fuel or too much timing advance. It can cause big engine problems

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PostPosted: Tue Oct 17, 2017 9:18 am 
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1275cc
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Location: Wollongong
Definitely get it checked. As Tim suggested sounds like knocking, but with a modern car they normally have a “knock sensor” to automatically adjust timing and protect the motor from damage. Perhaps this is faulty?


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PostPosted: Tue Oct 17, 2017 9:21 pm 
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848cc
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Joined: Sat Aug 05, 2017 1:13 pm
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Thank you. yes, that may be the issue. I put standard fuel in last time I filled up due to not having high octane stuff at the pump. that could be the issue.

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