Alfa Romeo Owners Club of Australia Forum

Technical => 939 Series (159, Brera and Brera Spider) => Topic started by: soakk on December 17, 2020, 09:32:03 AM

Title: Timing Chain Noise?
Post by: soakk on December 17, 2020, 09:32:03 AM
I've had my 159 Ti v6 a few months now and still picking up on the quirks.

A persistent noise I've heard coming out the front I first thought might have been a loose belt tensioner. Having got that replaced I'm now suspecting timing chain, but not sure.

It seems to be mostly noticeable when off throttle at around 2-3k RPM.

I know these things have a habbit of stretching the timing chain to the point where it needs to be replaced.

Should I be worried? Car has approx. 88k on the clock.
Title: Re: Timing Chain Noise?
Post by: bonno on December 17, 2020, 10:25:32 AM
Hi soakk
As per the following link, timing chains on the JTS engines are designed to last the life of the car, on the proviso that oil and filter are replaced as per maintenance schedule. However, if it seems to be getting worse over time, then get it replaced  (better be safe than sorry).
http://www.alfamotive.co.uk/index.php?option=com_content&view=article&id=43&Itemid=197
Title: Re: Timing Chain Noise?
Post by: GTV6SA on December 17, 2020, 11:11:51 AM
You should only have to worry when codes are displayed on dash. Check oil is changed regularly ,not the periods indicated in logbook, mine gets changed every 6 months regardless of mileage  ,oil changes cheaper than engine rebuilds! Also how you drive also can dictate chain life e.g. warming up car to proper operating temp before setting off will minimise wear & tear even though handbook says don't drive off until temp gauge starts moving.
Title: Re: Timing Chain Noise?
Post by: GTV6SA on December 17, 2020, 11:18:15 AM
What year is your V6  pre-2009 models mainly had chain stretching problems
Title: Re: Timing Chain Noise?
Post by: soakk on December 17, 2020, 12:06:54 PM
Quote from: GTV6SA on December 17, 2020, 11:18:15 AM
What year is your V6  pre-2009 models mainly had chain stretching problems
2007 - hence my concern
Title: Re: Timing Chain Noise?
Post by: afelice001 on December 18, 2020, 09:49:18 AM
Changing the oil is really easy to DIY. It's a 1/2 hour job and under $100 if you get oil on sale.
Ensure you regularly check the oil level too, don't rely on the monitor in the instrument cluster on start up.