Audi thru'n'thru
A2OC Donor
After 30 years a 'DIY mechanic' I felt it was almost a 'rights of passage' to undertake my 1st ever cambelt change on my 2005 BHC tdi, togethor with a new water pump and alternator belt.
The guys on here helped me find the correct kit; I read all the posts I could find, and compiled instructions from various sources and watched relevant stuff on youtube.
BUT I still managed to '**** it up' big time!! I ended up removing the crankshaft alternator pulley along with the crankshaft belt drive cog..... I'm still not sure how or why I didn't realise that would be a seriously STUPID thing to do - maybe it was the struggle I had to undo the crankshaft nut that addled my brain? I'm not even sure that I really needed to undo the crankshaft pulley nut in the first place? [photos 1 to 3]
I recognised the crankshaft and cambelt were NOT in their correct TDC positions for me to remove the belt - so I decided to follow the procedure to loosen the tensioner in order to get the crankshaft belt cog back on.
In the process of wrestling the belt back on, I managed to move the cambelt and the crankshaft postions - which I tried to re-position at best I could; the crankshaft cog is a 'keyed' fit onto the crank so I believe it is in the correct place?
Photos 4 shows the crankshaft pulley at what I THINK is the correct TDC position i.e. the mark lining up with the locking pin in position BUT photo 5 shows the cambelt sprocket is some way short of the 4Z (TDC position for the BHC engine). I think I have turned the crankshaft clockwise before I refitted the cog and belt [by perhaps 25 - 30 degrees].
So I'm stuck at a point where my knowledge and experience is exhausted and the risks of continuing [and making things really worse] is greater that the inconvenience of being without my daily driver until I can safely extricate myself from the enormous pile of poo that I've lept into!!
n.b. the engine does turn without any bangs or grating when I turn it by the crankshaft bolt.
MY BIG QUESTIONS:
1. Will the crankshaft still be at the correct TDC position? OR do I need to do additional checks / activities to be certain of this?
2. Is my logic correct that the cambelt sprocket will be have been effectively retarded?
3. IF I remove the belt and advance the cambelt sprocket to the TDC position '4Z'; Will I then have the cambelt sprocket in the correct position to lock it and proceed? How can I be certain it is correct?
4. have I completely lost the plot and need to phone International Rescue aka Thunderbirds!!
I do appreciate that this is a lot of info to assess but I will be eternally grateful for ANY help, obviously I'm very happy to provide more info and answer any questions.
I did look a for a suitable emoticon but could find one for 'desperate'.......
Many thanks, Peter
p.s. sorry the photos have got rotated by the upload and I can't seem to correct them.
The guys on here helped me find the correct kit; I read all the posts I could find, and compiled instructions from various sources and watched relevant stuff on youtube.
BUT I still managed to '**** it up' big time!! I ended up removing the crankshaft alternator pulley along with the crankshaft belt drive cog..... I'm still not sure how or why I didn't realise that would be a seriously STUPID thing to do - maybe it was the struggle I had to undo the crankshaft nut that addled my brain? I'm not even sure that I really needed to undo the crankshaft pulley nut in the first place? [photos 1 to 3]
I recognised the crankshaft and cambelt were NOT in their correct TDC positions for me to remove the belt - so I decided to follow the procedure to loosen the tensioner in order to get the crankshaft belt cog back on.
In the process of wrestling the belt back on, I managed to move the cambelt and the crankshaft postions - which I tried to re-position at best I could; the crankshaft cog is a 'keyed' fit onto the crank so I believe it is in the correct place?
Photos 4 shows the crankshaft pulley at what I THINK is the correct TDC position i.e. the mark lining up with the locking pin in position BUT photo 5 shows the cambelt sprocket is some way short of the 4Z (TDC position for the BHC engine). I think I have turned the crankshaft clockwise before I refitted the cog and belt [by perhaps 25 - 30 degrees].
So I'm stuck at a point where my knowledge and experience is exhausted and the risks of continuing [and making things really worse] is greater that the inconvenience of being without my daily driver until I can safely extricate myself from the enormous pile of poo that I've lept into!!
n.b. the engine does turn without any bangs or grating when I turn it by the crankshaft bolt.
MY BIG QUESTIONS:
1. Will the crankshaft still be at the correct TDC position? OR do I need to do additional checks / activities to be certain of this?
2. Is my logic correct that the cambelt sprocket will be have been effectively retarded?
3. IF I remove the belt and advance the cambelt sprocket to the TDC position '4Z'; Will I then have the cambelt sprocket in the correct position to lock it and proceed? How can I be certain it is correct?
4. have I completely lost the plot and need to phone International Rescue aka Thunderbirds!!
I do appreciate that this is a lot of info to assess but I will be eternally grateful for ANY help, obviously I'm very happy to provide more info and answer any questions.
I did look a for a suitable emoticon but could find one for 'desperate'.......
Many thanks, Peter
p.s. sorry the photos have got rotated by the upload and I can't seem to correct them.
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