200 Tdi timing belt pulley, the one on the crankshaft.
How DO you pull it off ? I have made a pulling tool, but the necessary force has snapped one of the three M5 studs I was pulling with. Can I apply some heat, or will I knacker the crankshaft ?
are you talking about the gear that the timing belt runs on?
These rarely are difficult to remove. I have only come across one out of the hundreds that I must have done over the years.
The way that I did it was to make a puller using an old gear that I bolted through using those M5 bolt holes to the stuck gear on the crank. This meant that the pull on the M5 studs was always in the right direction and there was much less chance of them breaking. Give it a good soaking in WD40 too.
Heating really is a last resort it should not damage the crank unless you are really brutal .But as you will be replacing the oil seal anyway.... On the 300 tdi it is not a good idea due to the location of the oil pump.
had trouble geeting mine off when the keyway broke up ended un using a slide hammer connected to an M5 bolts and worked my way around each one , once it started to move it slide off easily just had to break through the burr on the keyway ! "
I've had success in the past by using a long pry bar and by very gently (but with a lot of force) prising the pulley off working slowly round (turning the engine over). What does you puller look like?
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