300tdi Timing Belt Won't Go On .
- Thread starter dogdog1
- Start date
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Loosen the three small bolts on the injector pump pulley, sometime helps to fit belt then slide the tensioner in, especially if it or the crank gear are the lipped type.
Only use a 6 sided socket on the three bolts, use a 12 point at your peril.
Always putting a rough location as someone here might be local, not your postcode though!
Only use a 6 sided socket on the three bolts, use a 12 point at your peril.
Always putting a rough location as someone here might be local, not your postcode though!
I did , and they are identical . Tooth for tooth and the same numbers on the belt .
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- The Wooly Witch
Is the tensioner correct ?
Actually tried that too , even using the old pulleys and belt I can't get it back on . I did this job for the first and only time seven years ago and had no problems . I'm sorry I went near it now because the old belt and pulleys are like new !
Yes , all correct . It will be something silly you can be sure .
Edit - where I say idler, I mean tensioner!
I seem to remember that there's some complication with the idler. You can put the bolt in the wrong hole on the idler or the wrong hole on the chest or somthing. Or you use a bolt with a skirt around the head and it pushes the idler a bit further out from where you want it... Somthing like that?
My memory is not good and I only did the one in the photo a couple of months back but I recall somthing about the bolt skirt and having to use a different bolt (might have been that I was using the old bolt and it was incompatible with the new idler or the other way around?)
Again it's very hazy, but do have a look at yours. Somthing might spring out.
I'd bet that the issue is somthing to do with the idler. I mean, how could it not be?
I seem to remember that there's some complication with the idler. You can put the bolt in the wrong hole on the idler or the wrong hole on the chest or somthing. Or you use a bolt with a skirt around the head and it pushes the idler a bit further out from where you want it... Somthing like that?
My memory is not good and I only did the one in the photo a couple of months back but I recall somthing about the bolt skirt and having to use a different bolt (might have been that I was using the old bolt and it was incompatible with the new idler or the other way around?)
Again it's very hazy, but do have a look at yours. Somthing might spring out.
I'd bet that the issue is somthing to do with the idler. I mean, how could it not be?
JulianF , when you zoom into your photo the way your timing belt comes off the pulley at an angle is just the way mine was when I put the new belt on . Is it supposed to be like that ? I was convinced it was misaligned and took it off again . Also the idler pulley looked to be ever so slightly more prominent than the tensioner pulley . Is that normal ? Also , how did you go about getting the belt onto the pulley ?
Comes off which pulley?
Are you sure its not just a photo angle issue?
Here is another snap of the same, you may, or may not be able to see somthing else?
This one was a mess. The nothing had broken, but the IP had been taken off years ago, without setting anything to reference. I took the rocker shaft off to get it all back into sync again, but obviously yours should just be a "simple" belt swap...
It only got an mot a couple of weeks ago, and ive been driving it about a bit, and nothing has fallen off yet. I took off a belt that had done, probably, less than 20 miles, but a long time ago, so figured id swap it.
Are you sure its not just a photo angle issue?
Here is another snap of the same, you may, or may not be able to see somthing else?
This one was a mess. The nothing had broken, but the IP had been taken off years ago, without setting anything to reference. I took the rocker shaft off to get it all back into sync again, but obviously yours should just be a "simple" belt swap...
It only got an mot a couple of weeks ago, and ive been driving it about a bit, and nothing has fallen off yet. I took off a belt that had done, probably, less than 20 miles, but a long time ago, so figured id swap it.
Problem solved . It eventually occurred to me that if trying to put it on with a loose pulley was insufficient then take the pulley screw out altogether . So that is what I did and with the pulley hanging even lower the belt went on easily . Then using the breaker bar in the square hole I levered up the tensioner and inserted the screw part way before setting the tension in the usual way . This method is so easy I don't know why it isn't the standard procedure for the job . Also the misalignment caused by the "pushing in the idler pulley past the belt" method was eliminated . Many thanks for all the replies .
