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General => The garage => Topic started by: sols on 04 November 2010, 15:43

Title: Rattle from the head on AUM engine
Post by: sols on 04 November 2010, 15:43

Hi, i'v recently bought a Mk4 golf GTI with the AUM engine, while the engine was idling the other day i noticed a rattling from underneath the rocker cover, i took the rocker cover off an noticed it has two plastic cam covers which i thought were rattling on the rockercover so i removed these but the noise is still there. The rattling also seems to come and go which led me to think it may be a blocked oil jet so i'v just flushed the engine, has anyone else had this problem or can anyone shead any light on what else could be causing this noise?????

Title: Re: Rattle from the head on AUM engine
Post by: danny_p on 05 November 2010, 00:23

cam chain

Title: Re: Rattle from the head on AUM engine
Post by: sols on 05 November 2010, 13:54

just took the rockcover off an inspected the cam chain seems good

Title: Re: Rattle from the head on AUM engine
Post by: ash1.8T on 08 November 2010, 09:07

Could be timing chain tensioner does the sound go away when you blip the throttle?

Title: Re: Rattle from the head on AUM engine
Post by: sols on 09 November 2010, 18:23

The engine doesn't make the noise all the time but ye when it is it goes when you give it a little rev then comes back again, is the tensioner for the chain hydrolic??? cause when i had a look the other day it didn't look adjustable???

Title: Re: Rattle from the head on AUM engine
Post by: ash1.8T on 11 November 2010, 19:44

I think it's hydrolic not sure tho I've got the same noise on my car getting the tensioner change over the weekend

Title: Re: Rattle from the head on AUM engine
Post by: new to vw on 12 November 2010, 23:01

It sounds the same as mine bud.......Some muppet hadnt been servicing it properly.....mine turned out to be the oil pick up pipe in the sump....£8 from the stealers... (make sure you get the O ring as well):grin: :grin:
Get the car the car on a ramp or stands drop the sump and undo the 2 bolts that hold the pick up pipe on
Some of the bolts that hold the sump on are a pain in the butt to get out....You will need a set of allen keys and some RTV sealent.... :grin: :grin:

Title: Re: Rattle from the head on AUM engine
Post by: sols on 13 November 2010, 16:59

Thanks for the advice will get on to changing that oil pick up this week, let us know if you have any joy once you v had a look at the tensioner to mate mine seemed to be fine but if you notice anythin with yours could easily cheak mine to cure the rattle.