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Model specific boards => Golf mk1 => Topic started by: richandhazel on 10 May 2011, 16:20

Title: Bearing Noise From Timing Belt End Of Engine
Post by: richandhazel on 10 May 2011, 16:20
Just thought I would share this experience with my fellow Mk1 owners:-

All last year, since putting the cab back on the road, and this year I have been suffering with a loud noisy bearing noise from the timing belt area of the engine. I had convinced myself that the new tensioner that I had fitted was at fault so last week I fitted a replacement tensioner and belt.........only to find the noise still there :angry:

This afternoon, as the weather is nice, I took the car for a spin and the noise seemed louder than ever so I tried to troubleshoot it.

I removed the aux drive belt to take the water pump and alternator out of the equation and ran the engine briefly - noise still evident.

I removed the top timing belt cover and ran the engine briefly - noise still evident

At my wits end I tried slackening the timing belt tension slightly - noise disappeared :shocked:
So on both timing belt and tensioner changes I had overtightened the tensioner!

Sounds great now :cool:
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: Guy on 10 May 2011, 23:21
oopsy! at least you have it sorted now and can operate more peacefully  :cool:
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: JamesW on 11 May 2011, 12:49
The fun of hunting down funny car noises  :grin:
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: SoundillusioN on 13 May 2011, 16:11
Good tip... I didn't document it but I had similar when I changed my cambelt recently... Being paranoid that the belt was too loose, I did the same as you and overtightened it and along came the noise.
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: thai-wronghorse on 13 May 2011, 16:17
From what Ive read (but not personally experienced) is that it's quite common for new cambelts and tensioners to give out a certain amount of noise when new due to the fact they haven't bedded in yet and will quieten with use.
Was it a manual or automatic tensioner that you fitted?
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: SoundillusioN on 13 May 2011, 16:25
From what Ive read (but not personally experienced) is that it's quite common for new cambelts and tensioners to give out a certain amount of noise when new due to the fact they haven't bedded in yet and will quieten with use.
Was it a manual or automatic tensioner that you fitted?

Manual which is the norm in a mk1...  it was literally a couple of mm adjustment in it to shut it up for me.
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: richandhazel on 13 May 2011, 20:27
Likewise, just a minor tweak slackening the tensioner fixed it.

MOT time already......booked in tomorrow just after the Mk4.
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: Guy on 16 May 2011, 10:14
Likewise, just a minor tweak slackening the tensioner fixed it.

MOT time already......booked in tomorrow just after the Mk4.

how did you get on?
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: SoundillusioN on 16 May 2011, 10:42
Likewise, just a minor tweak slackening the tensioner fixed it.

MOT time already......booked in tomorrow just after the Mk4.

how did you get on?

Has it been a year for the cabby already!?  and yeah, how did you get on with it?
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: richandhazel on 16 May 2011, 13:17
Both cars passed, Mk1 had no advisories, mk4 had one :smiley:

That year did go very quickly didn't it :shocked:
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: JamesW on 16 May 2011, 13:24
Both cars passed, Mk1 had no advisories, mk4 had one :smiley:

That year did go very quickly didn't it :shocked:

So are you going to bring the mk1 to DATP?
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: richandhazel on 16 May 2011, 13:50
Both cars passed, Mk1 had no advisories, mk4 had one :smiley:

That year did go very quickly didn't it :shocked:

So are you going to bring the mk1 to DATP?

Hmmmm, never done that one.......very close to home too.
I'll have a look around the site and look into it :cool:
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: JamesW on 16 May 2011, 14:34
Some info at
http://www.vwgolfmk1.org.uk/modules.php?name=Forums&file=viewtopic&t=97261&postdays=0&postorder=asc&start=15 (http://www.vwgolfmk1.org.uk/modules.php?name=Forums&file=viewtopic&t=97261&postdays=0&postorder=asc&start=15) 

Also Berks mk1 meet this Wednesday http://www.vwgolfmk1.org.uk/modules.php?name=Forums&file=viewtopic&t=100790
Title: Re: Bearing Noise From Timing Belt End Of Engine
Post by: Guy on 16 May 2011, 16:50
Both cars passed, Mk1 had no advisories, mk4 had one :smiley:

That year did go very quickly didn't it :shocked:

great news!! :afro: