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Mk3/nc Engine Rattle Help/advise

11K views 6 replies 4 participants last post by  tom2012  
Hey,

Do you have any updates on this, i have had the same issue and have no replaced the timing chain but nothing has changed in regards to the noise.

Thank you


Update time.

I got in contact with the mechanic who done the service, they took the top of the engine off and looked ok (thought it might be a tappet issue until he found it have them - but while doing the timing chain probably didnt add much time to the work) as said before he thought it was lower end. It was the mechanics son that done most the work and will be getting back to me some point soon with the oil level and also if they found anything in it.

Took it to another garage today and they also believe its an "internal engine noise" but they don't specialist in engine re-builds and pointed me elsewhere

After watching a video on youtube just as this all started there was an interesting video where they go through many different ways to try and diagnose the issue, one was ignition test, as this doesnt require tools to do - knowing the risk that prolonged run will cause more problems and even short runs may make it worse, I took the decision to pull spark lead out one at a time. - result the noise mostly went with the first (or last - the one nearest the front of the car) lead out.

I have now done aprox 150 miles since this has started and no change in the noise at the moment.

This somewhat tells me that the opinions at garages are correct and its not going to be an external bearing and furthermore a bottom end problem, is this a correct assumption?

Is it still worth while pulling the serpentine belt off?

Also a suggestion elsewhere on the internet was to use engine flush, while some people say its a bad idea as it may cause other issues, some say it may just be buildup, with what is known so far is this worth an attempt or not?

I am somewhat tempted to get a breaker bar as this may be useful in the future anyway will give me that peace of mind - unless the update, as I may suspect, may indicate it is an engine issue.