"Catman" <catman@[EMAIL PROTECTED]
> wrote in message
news:oP98k.82976$tn2.43391@[EMAIL PROTECTED]
> Charlie Money wrote:
>> Hi all
>>
>> Anybody got any ideas - it's doing mine and my garage's heads in...
>>
>> 2005 156 S****twagon 1.9 JTD 16 valve manual
>>
>> I'm getting a vibration that seems to be originating from the front
>> passenger side when the car is under load, most noticeably in 3rd gear
>> upwards. It is accompanied by a lower resonance hum (not transmission
>> whine), that at lower speeds is hardly distinguishable from road
>> noise. Both the judder and noise disappear if I ease off the throttle.
>> It on'y really seems to kick in as the engine gets up to operating
>> speed.
>>
>> My garage (not an Alfa specialist), can't find anything - checked
>> wheel bearings, wheel balance, tracking, driveshaft play, loose engine/
>> gearbox mountings, but can't find anything untoward.
>>
>> I spoke to Mangoletsi - not because I'm anywhere near them, but I've
>> heard good things about them. Anywhere the mechanic there reckoned it
>> was only likely to be a couple of things, either deformed tyres or
>> driveshaft play, both of which have been ruled out by my garage.
>
> Saw tooth on the inside edge of the *rear* tyres.
>
> Check it out.
>
A hefty 'ditto' for that suggestion - a year after I got my 147 I started
to
have a weird noise/hum at around 30mph but only after a few miles on the
road, turned out to be the rear offside saw-toothing!
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