bent drive belt tensioner audi a4 1.9tdi
Hello, my 1999 audi a4 1.9tdi needs a bit of work doing.
http://img600.imageshack.us/img600/5809/img0167bj.jpg
as you can see from the picture the fan/alternator belt is coming off due to a bent tensioner. I want to replace this myself but need a little guideance on what parts/tools i require.
I have read that the cause for this bending might be due to the alternator, what do i need to check for when the belt is removed?
Will i have enough space to replace the tensioner without removing the fan/radiatior?
Re: bent drive belt tensioner audi a4 1.9tdi
I pull the front of the car forward into service position which means taking the front bumper off.
Re: bent drive belt tensioner audi a4 1.9tdi
thanks for your quick reply, after removing the bumper do i need to remove the radiator/fan?
also can anyone provide me with a part number for the tensioner that needs replacing.
Re: bent drive belt tensioner audi a4 1.9tdi
Right, its been a while since I opened this thread but Id like to say thankyou for your inputs! They helped me alot more than the dammed haynes manual that I purchased!
I managed (with a great deal of difficulty) to replace the tensioner without shifting the lock carrier forward :)
I struggled to get the alternator off as one of the bolts that held it on was blocked to come all the way out by the fan! After about an hour of cursing whacking and wobbling i managed to move the bushes enough to get that bolt out and the alternator off.
My next hurdle was getting the viscous fan off!
Quote:
Originally Posted by
frankc
You will need to counter-hold the fan pulley with either a rubber or fabric strap wrench DO NOT use a chain type wrench or you will score the pulley and this will eat belts. Alternatively you could buy audis special tool for holding the pulley - not sure of cost for this as i used a strap wrench Once the pulley is off you can gently lower it down to ensure you don't damage radiator fins and then release the tensioner
Many thanks for this crucial advice Frank, without it I would have knackered the fan pulley! I tried numerous times to get a good hold on the pulley using a rubber bike inner tube and a G-Clamp to no avail. Eventually I went to Halfords and got a Oil Filter removal tool and used it in conjunction with the inner tube. Voila - the fan came off in seconds! I returned this tool right back to halfords after I was finnished :D
replacing the tensioner was a breeze and then with an extra pair of hands putting the new belt on wasn't 'too' much of a struggle either.
All in all very rewarding job!
Thanks again.
Re: bent drive belt tensioner audi a4 1.9tdi
whats the big deal about puting the front of the car into the service position its dead easy and only takes about 20-25 min. why did you take the alternator of did you find something wrong with it?
Re: bent drive belt tensioner audi a4 1.9tdi
Hi, I just followed your instructions and avoided a morning of swearing and skinned knuckles.
Thanks a lot.
M
Re: bent drive belt tensioner audi a4 1.9tdi
There is a cutout on the viscous fan pulley that you withdraw the alternator bolt closest to the engine into. You can lock the pulley with a 10mm drive torx t10 inserted from the rear. Pig of a job with the lock carrier in place well done!
Quote:
Originally Posted by
thomoliver
Right, its been a while since I opened this thread but Id like to say thankyou for your inputs! They helped me alot more than the dammed haynes manual that I purchased!
I managed (with a great deal of difficulty) to replace the tensioner without shifting the lock carrier forward :)
I struggled to get the alternator off as one of the bolts that held it on was blocked to come all the way out by the fan! After about an hour of cursing whacking and wobbling i managed to move the bushes enough to get that bolt out and the alternator off.
My next hurdle was getting the viscous fan off!
Many thanks for this crucial advice Frank, without it I would have knackered the fan pulley! I tried numerous times to get a good hold on the pulley using a rubber bike inner tube and a G-Clamp to no avail. Eventually I went to Halfords and got a Oil Filter removal tool and used it in conjunction with the inner tube. Voila - the fan came off in seconds! I returned this tool right back to halfords after I was finnished :D
replacing the tensioner was a breeze and then with an extra pair of hands putting the new belt on wasn't 'too' much of a struggle either.
All in all very rewarding job!
Thanks again.
Re: bent drive belt tensioner audi a4 1.9tdi
I use a water pump wrench to hold the viscous fan hub, 8mm Allen key and breaker bar and a 16mm socket for the tensioner. Can do the job in under 20 minutes which includes 2-3 phone calls and a tea brake ! Putting a new belt on takes longer...