Is this a bad coupler/isolator?
#1
07-04-2018, 02:36 PM
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Location: baltimore md
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Is this a bad coupler/isolator?
Just got a 2011 XJ that needed a very few minor things. It runs great, with the exception on a little shake at idle, only codes I have found is a po442 using the icarsoft LRiI.. wondering how hard the plugs are to change, because it has just hit a 100k. Also it has a loud startup clatter which I’m thinking is the coupler/isolator going to try and upload video to get your feedback
#2
07-04-2018, 04:20 PM
#3
07-04-2018, 06:47 PM
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Will definitely look into that, but I did notice that the clatter is gone when removing the supercharged belt. I had to remove in the evening when parked for the day, because it only happens for a few seconds when first starting the car for the day, doesn’t do it on every startup. How involved is the timing chain tensioner and guide? I’ve done it on a few vehicles, but have to admit never touched the 5.0 jag/rover motor. Touched plenty Mercedes 5.0’s though..
#4
07-05-2018, 08:08 AM
#5
07-05-2018, 12:07 PM
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#6
07-06-2018, 11:33 AM
Veteran Member
You have the smaller 6mm timing chain setup. This has been replaced by Jaguar and upgraded to 8mm chains. Don't ignore the noises as I think you are hearing chain rattling along with a worn SC isolator.
The isolator won't cause any problems just noise BUT those darn timing chains are an engine disaster for sure!
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The isolator won't cause any problems just noise BUT those darn timing chains are an engine disaster for sure!
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