waiting for RAC :(

actualeddie

actualeddie

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Driving down the road and suddenly the sound of something metal under my car. GREAT, so pulled over straight away and my crank shaft pulley is sitting underneath!

Why would this sheer off, has it happened before, hard to fix?

Damn S3, likes to keep me busy

Cheers
 
The bolts on the crank pulley can be a ****** to get off and easily rounded... if they did this removing them and not replaced them they may not have tightened them properly and have worked loose/sheared... they are supposed to be quite a hard bolt (material wise) than the normal bolts due to the load it sees... never seen one come off personally but its the only reason I can think of why it would...

<tuffty/>
 
Yeah sounds reasonable, garage was a bit of a joke. Hopefully theres no other damage to the engine and can just be switched.

Thanks mate
 
Worse case is the mani crank pulley (that drives the toothed cam belt) has been damaged thread wise... that will be a knob of a job as I have had to use heat on everyone I have removed when rebuilding an engine....

Make sure you use genuine bolts though as they need to be the right hardness

<tuffty/>
 
7908327818_a60323eec2_m_d.jpg
Is it a case of removing those sneered of screws you reckon?
 
sh1t dude. is that a picture of yours? oh dear!

id get a new cam pulley and replace it. new center bolt, 4 new bolts. as for the 19mm double hew headed bolt, strip the cambelt off and gently heat the head of the bolt up leave it 30 seconds and then a very good air gun "normally" gets them straight out.
 
Have you got a better/bigger pic mate? that looks tricky to see the detail...

From what I can kinda see it looka like one came loose and is gone the others have sheard off... if you can get them out and run a tap through to make sure the threads are clear then it stands a chance :)

<tuffty/>
 
looks like ones snapped of some time ago. the opposite one has half snapped around the same time. then the rest have all gone together causing your break down.

the cambelt was done 4 months ago? id be back at that garage kicking off! theyve caused this!
 
sounds like this is going to get expensive.

Just drove home, RAC put a fully charged battery in to last me the journey, engine seemed fine on the way back.
 
Hummm... they 'should' come out ok if done right... threads should be ok but certianly looks like that one as Murran suggested has been broken a while...

I'd be taking it back and moaning like f00k!

Unlucky dude...

<tuffty/>
 
dont suppose anyone knows the part numbers for the things i need? so far i got

06a 105 243 E (for the pulley).

So this will be a head of and engine time jobby?

Cheers again
 
audi upgrades
Not really... thats an uprated one for engines running silly cams and springs etc as this puts extra load on the crank pulley..

You thinking you need to replace the one you have due to not being able to get the sheared bolts out?

A std one will be fine but like I say they can be a ****** to undo the bolt...

<tuffty/>
 
Yeah, the screws look like they'll be a right pain to get out. If I can get them out be nice, just a new pulley and the bolts?

If I have to remove the crank gear itself, will I need to time the engine, or should I just mark the gear up?

Great link, thanks :)
 
New pulley and bolts will be all you need if you can get the sheared ones in situe... if not then its timing belt off so loads more work :(

Its not gonna be just a case of marking the belt etc as the tensioner will need to be released to get the belt off...

Never done a crank pulley on an engine thats all together before so not sure how easy it will be but the crank will need to be locked in place (there are tools available for this) to stop it all turning round while undoing the bolt which in itself will be an ****...

<tuffty/>
 
Well in that case fingers crossed on getting those 4 screws out, latter idea is beyond my current skills.

Thanks again mate, you given me loads of information!
 
I would soak them in plus gas, drill a nice pilot hole in the centres using a quality hss bit, spray again.. leave it overnight then get a set of easyouts and take your time.. you should be ok... i think it is fairly accessible under the wing..
 
She's all fixed and back on the road :) took it to Cranks and Bearing a garage in Enfield to take the sheared screws out and replace a new pulley. They said pretty much what you said. Whoever was there last put any old bolts in cut down to size and probably torqued incorrectly! Just wish I had gone Cranks And Bearings when the head cracked 4 months ago, good friendly garage and VW specialists.

Just checked, the head on my car is an AUQ, with a APY bottom, not APX like I thought. Diffent compression ratios, does that matter ??

Sorry to go on, cheers everyone.
 
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