Timing belt change - marks on flywheel and on vibration damper not aligning

Kneale Brownson kneale at knitknacks.com
Tue Dec 11 05:56:24 PST 2012


I've seen that too.  The damper mark is a "guesstimate".  Use TDC  and 
the flywheel mark.

On 12/10/2012 7:28 PM, radek at uniserve.com wrote:
> Well, the timing belt sprocket has a pretty massive key (which is part 
> of the casting) that slides into a groove on the camshaft.  The 
> sprocket can go in one way only.  The vibration damper, on the other 
> hand, has no key and attaches to the flat surface of the sprocket with 
> four Allen-head bolts.  It has a small recess at one spot that fits 
> over a small bump on the flat surface of the sprocket.  The damper 
> also goes in one way only.  And yet, there's misalignment.  I must be 
> missing something.
>
> Radek.
>
> ------------------------------
>
>> Message: 6
>> Date: Mon, 10 Dec 2012 12:17:37 -0500
>> From: Huw Powell <audi at humanspeakers.com>
>> To: Tony Hoffman <auditony at gmail.com>
>> Cc: "<quattro at audifans.com>" <quattro at audifans.com>, Radek
> <radek at uniserve.com>
>> Subject: Re: Timing belt change - marks on flywheel and on vibration
>         damper        not aligning
>> Message-ID: <50C61931.9070009 at humanspeakers.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>> Since they are doing the TB, it's coming off anyway...
>
>> On 12/10/2012 8:02 AM, Tony Hoffman wrote:
>
> [Hide Quoted Text]
> This is exactly what came to mind. The keyway on the timing belt sprocket
> that sits behind the damper pulley. BTST plenty of times.
>
> Tony
>
> On Sun, Dec 9, 2012 at 2:55 PM, Cody Forbes <cody at 5000tq.com> wrote:
>
> The key on the pulley could be sheared off, or starting to. It would be a
> pretty good idea to pull it off and check.
>
> -Cody Forbes (mobile)
>
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