Help needed: 1990 Audi 80Q, 10v engine timing belt replacement

[Huw Powell]

> I want to do the timing belt and water pump replacement
> on my 1990 AQ 80 (10 valve) got the parts and purchased
> the Bentley so am ready to go (I think).
> 
> May I ask for some help on what needs to be actually removed
> for the job.  I have heard that the front bumper, radiator,
> etc. all need to go.

The job is a lot easier with the bumper removed - but this is an easy 
thing to do anyway.  The radiator can stay in place.  I removed mine 
because I installed a new one at the same time.

> Also, do I need special tools for this job?  Someone advised
> that I would need a 27mm key and extension bar to remove
> a pulley nut.

The main bugbear is locking the crankshaft while undoing that main crank 
pulley bolt.  There is a tool made to do this, or a few different tricks 
of varying quality that people try.

That big bolt needs a *lot* of torque when being put back on, so plan on 
having a sturdy (impact type) socket and a four foot pipe for leverage.

I hope you also got a new crank seal, as it is cheap, easy to replace 
and requires no extra labor to get to while you are doing this job.  You 
should be planning on replacing the TB, WP, the crank seal, the TB idler 
pulley, and the accessory belts (alt/PS/AC), since they will be off the 
car.  Doing the thermostat as well is appropriate, although you can get 
to it at another time.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/