Looking for insights!
Ok so yesterday set about changing the timing belt (T4 ABL 1.9TD (2000)), replacing water pump and all round new belts. So all in all everything went fine with no major difficulties (even that little bolt by the water pump for holding the bottom cover on that has no way to get to it from behind without dismantling half the motor should it fall out, you gotta love VW for hiding bolts behind things!), Didn't touch the toothed crankshaft sprocket, new belt on, tensioned and timing checked and double checked and triple checked, all good. new water pump fitted, all pulleys back on, all bolts tightened to the corrrect torque, all new belts on and tensioned, crossed fingers and started the motor, brilliant, all running well, no squeaks, no wobbles, no knocking sounds, and managed to get everything cleared and tidied up from the street, (where, alas, is where I have to do my repairs etc.) before it got too dark to see...All in all feeling pretty chuffed with myself.
Except...a slight uneasiness about something....
The auxiliary/power steering pump pulleys and the four bolts holding it onto the crankshaft.
As I set about refitting it to the crank sprocket it didn't seem to want to slot on so easy as I expected and initially had trouble lining up the bolts, took it off again and on closer inspection (I'm laid on my back under the van on the side of the street) I noticed a very small protrusion on the crank sprocket, realised that that must have to line up with one of the extra holes on the pulleys,, so managed to get it in a position and hold it and get the bolts in, all seemed fine and set about slowly cranking the bolts up in a circular sequence to pull everything into place, at a particular moment I began to think this doesn't feel quite right, these bolts don't seem to be cranking up tight, at which point I remembered reading somewhere that they could possibly be stretch bolts, so got the torque wrench on them and realised I was over tightening them, even though they didn't feel as though they were excessively tight, slackened off a little and set to the correct torque.
Now I'm wondering if maybe I should have replaced these four bolts with new bolts, I've already had the engine running, not yet with high revs, everything thing looks and sounds good and can't see any wobbles anywhere, but I'm just slightly uneasy about it.
I haven't yet been back under the van to have a second look and check, and I'm wondering if the more experienced among you on the forum can give me any suggestions, insights etc. etc. Did I miss something?...should I have done something differently, should I not be worrying even!...Anything would be much appreciated!
Ok so yesterday set about changing the timing belt (T4 ABL 1.9TD (2000)), replacing water pump and all round new belts. So all in all everything went fine with no major difficulties (even that little bolt by the water pump for holding the bottom cover on that has no way to get to it from behind without dismantling half the motor should it fall out, you gotta love VW for hiding bolts behind things!), Didn't touch the toothed crankshaft sprocket, new belt on, tensioned and timing checked and double checked and triple checked, all good. new water pump fitted, all pulleys back on, all bolts tightened to the corrrect torque, all new belts on and tensioned, crossed fingers and started the motor, brilliant, all running well, no squeaks, no wobbles, no knocking sounds, and managed to get everything cleared and tidied up from the street, (where, alas, is where I have to do my repairs etc.) before it got too dark to see...All in all feeling pretty chuffed with myself.
Except...a slight uneasiness about something....
The auxiliary/power steering pump pulleys and the four bolts holding it onto the crankshaft.
As I set about refitting it to the crank sprocket it didn't seem to want to slot on so easy as I expected and initially had trouble lining up the bolts, took it off again and on closer inspection (I'm laid on my back under the van on the side of the street) I noticed a very small protrusion on the crank sprocket, realised that that must have to line up with one of the extra holes on the pulleys,, so managed to get it in a position and hold it and get the bolts in, all seemed fine and set about slowly cranking the bolts up in a circular sequence to pull everything into place, at a particular moment I began to think this doesn't feel quite right, these bolts don't seem to be cranking up tight, at which point I remembered reading somewhere that they could possibly be stretch bolts, so got the torque wrench on them and realised I was over tightening them, even though they didn't feel as though they were excessively tight, slackened off a little and set to the correct torque.
Now I'm wondering if maybe I should have replaced these four bolts with new bolts, I've already had the engine running, not yet with high revs, everything thing looks and sounds good and can't see any wobbles anywhere, but I'm just slightly uneasy about it.
I haven't yet been back under the van to have a second look and check, and I'm wondering if the more experienced among you on the forum can give me any suggestions, insights etc. etc. Did I miss something?...should I have done something differently, should I not be worrying even!...Anything would be much appreciated!
)
