Audi 80 AAZ timing belt follow up.

[minny]

Further to my post earlier regarding my Audi 80 td diesel 1994 AAZ.

It was found to be the timing belt, I took the cover off today and it was completely snapped in two.

Now, I'd only gone a few yards as it goes, was in second gear, I think, driving time no more than 1 to 2 minutes.

Basically is there any way of testing to see if there is any damage without taking the engine to bits? Cranking around one of the pulleys to listen for a clunking sound or smooth rotation, something like that? The teeth on all the pulleys are intact I see that a very cheap belt can be found on ebay, I was thinking of getting that and just giving it a test.

I would imagine all the timing marks are out, how difficult are they to get right?(doesn't help there's no specific manual, I have a golf vento one it says it covers my engine but it doesn't look like the one in the illustrations).

Finally, if no test is available, how difficult is changing the valves? (assuming bent) Can they be done with the engine in car?

I am no where near an experienced D.I.Y mechanic but I reckon if it's going to be scraped (the value of the car prevents very expensive garage bills) any way no harm trying; could be a learning curve.

Thanks.

[phil miller]

the best thing to do is line the marks up and fit a new belt, then see how it runs, you maybe lucky, but until you put a belt on its hard to say bud

[zollaf]

the valves will almost certainly be bent. i know that and phil knows that. you can remove the rocker cover and pull the camshaft out. if any valves are sat low, then they are bent. now, assuming the head has to come off and some new valves fitted, then a garage is going to be charging you around £600 minimum to do a proper job. you need valves, a headgasket, a head set, head bolts, head skim, labour to lap all the valves in, and of course a timing belt kit with new tensioner. it is possible diy, you only have to remove the head, but you will need specialist tools, and still need to spend on parts. the car may only have limited value, but what else are you going to replace it with ? if the rest of the car is good, then why scrap it for an unknown vehicle, that could cost you an arm and a leg to run.

[minny]

but what else are you going to replace it with ? if the rest of the car is good, then why scrap it for an unknown vehicle, that could cost you an arm and a leg to run.

The car run as sweet has a nut, the engine compartment immaculate, with just a little over 100,000 miles on it. The timing belt was changed (before I had it) at around 86,000.

Now, if the valves can be replaced with the engine in the car (and checked), and the tools and parts you describe are not THAT expensive, it may be worth a go.

I assume it's not a masisvely difficult professional job.

But, perhaps a cheap timing belt might be the first port of call.

[phil miller]

The car run as sweet has a nut, the engine compartment immaculate, with just a little over 100,000 miles on it. The timing belt was changed (before I had it) at around 86,000.

Now, if the valves can be replaced with the engine in the car (and checked), and the tools and parts you describe are not THAT expensive, it may be worth a go.

I assume it's not a masisvely difficult professional job.

But, perhaps a cheap timing belt might be the first port of call.

it isnt a big job, but then ive been doing it for 17 odd yrs on a weekly basis, off the top of my head you will need a torque wrench, angle gauge (for torqueing up the head, a valve spring compressor, a pencil magnet, a selection of spanners and sockets, and use of autodata or similar, if you do go ahead if you need any info or tech data pm me and i will send the info on

[minny]

This is all very optimistic. I have the spanners and sockets, the other stuff would need to be costed, they look quite expensive.

And then there's finding suitable instructions, but all is not lost!

Thanks fellas.

[minny]

Just a second thought, i do have the Haynes manual, to the Golf and vento but I also have the manual to my previous Audi 80, that was petrol though.

Are the procedures similar or same for petrol and diesel, with a few differences differences?

[phil miller]

if the golf diesel engine looks like yours then the actual strip down will be the same, if anything it will give you a reference to go to if needs be

[minny]

Here's a check list and costings on ebay, is there anything at all that I have missed?




valves £15.50

head gasket (assume this is in the head set below)

head set < £10

head bolts £25

torque wrench £20 (bought this any way that price)

angle gauge £8 - 18

valve spring compressor £20 - 50

pencil magnet couldn't find one

Elsawin £7

timing belt £8 - 30

tensioner £18



That leaves the head skim mentioned by Zollaf. Is this cleaning the old gaskets off and such? Is that something that can be done at by me (bearing in mind it's having a go at fixing it or scraping it).

Also, why would I need a new tensioner? The one on the engine along with all the pullys look in fine order to me.

The ebay links if anyone is looking for similar:

Head set

http://cgi.ebay.co.uk/AUDI-80-100-VW...item41535464af

Head Bolts

http://cgi.ebay.co.uk/AUDI-80-A3-A4-...item3a5de901c9

Spring compressor (is OHV correct?)

http://cgi.ebay.co.uk/Sealey-Valve-S...item2ea8e46509

Torque

http://cgi.ebay.co.uk/PRO-1-2-DRIVE-...item5adc927851

Angel gauge

http://cgi.ebay.co.uk/Laser-Torque-A...item2c54b68b6c

Valves

http://cgi.ebay.co.uk/Audi-100-2-4TD...item230acc9b3a

Elsawin

http://cgi.ebay.co.uk/ELSAWIN-3-70-A...item3cae7fc6e4

Tensioner pully


http://cgi.ebay.co.uk/Audi-Drive-Bel...item3cb0e522ec


Thanks.

[phil miller]

i would double check the headset comes with the head gasket, at that price i think it will be seperate, i strongly recommend replacing everything to do with the timing belt, tensioner and idlers,the head skim basicly shaves a small amount off the head face to ensure its 100% flat

p.s i dont thin the spring compressor you have linked will do the job, i will have a look at mine at work tomorrow, i know it does the job on these heads, if it looks different to that one i can always let you borrow it for a week or so, if you cover the postage