HELP SELF-INFLICTED PROBLEM HAVE PITY ON ME?
2002 Vauxhall Vivaro
Car: Vauxhall Vivaro
Year: 2002
Year: 2002
Categories:
Running Rough, Starting & Power Loss
Hello everyone.
I am wondering if any one can shed some light on a self-inflicted problem.
I am currently replacing a gearbox on my Vauxhall Vivaro 1.9 DTI 2002 plated van and following a CD reference manual used within Vauxhall (or so I am told)?
To cut to the case! I removed the flywheel to replace the crankshaft seal, as there was evidence of an oil leak from behind it. I followed the instructions to the manual and reassembled the flywheel back onto the crankshaft.
However now the gearbox has been returned. I have noticed there is a sensor on the front of the gearbox housing that directly monitors the side of the flywheel.
What I can gather from my manual is this seems to be called the following names. Engine speed sensor/crankshaft impulse sensor /crankshaft position sensor or B34 on the schematics’/wiring diagrams.
I am now getting a little worried, as I did not mark up the flywheel up. Can any one tell me if this sensor does? Does it sense the crank speed or is it used for crank positioning?
If it is the latter how I can check to make sure the crank positioning is correct to the sensor/engine?
What is also really very puzzling is the manual went into great detail about marking the pressure plate up with the flywheel and even replacing the crankshaft to flywheel bolts and torque settings etc but no mention of marking up the position of the flywheel to the crankshaft.
Unfortunately I followed it to the letter and now getting a really bad feeling. If I do refit the gearbox the engine may not start due to an out of align flywheel and the whole lot will have to be taken back out! Am I being a drama queen?
There is a sensor on the cam on my model.
If any one has any advise or information on my dilemma?
It would so much appreciated if you could spare a little time for a reply.
Thank you in advance Paul
I am wondering if any one can shed some light on a self-inflicted problem.
I am currently replacing a gearbox on my Vauxhall Vivaro 1.9 DTI 2002 plated van and following a CD reference manual used within Vauxhall (or so I am told)?
To cut to the case! I removed the flywheel to replace the crankshaft seal, as there was evidence of an oil leak from behind it. I followed the instructions to the manual and reassembled the flywheel back onto the crankshaft.
However now the gearbox has been returned. I have noticed there is a sensor on the front of the gearbox housing that directly monitors the side of the flywheel.
What I can gather from my manual is this seems to be called the following names. Engine speed sensor/crankshaft impulse sensor /crankshaft position sensor or B34 on the schematics’/wiring diagrams.
I am now getting a little worried, as I did not mark up the flywheel up. Can any one tell me if this sensor does? Does it sense the crank speed or is it used for crank positioning?
If it is the latter how I can check to make sure the crank positioning is correct to the sensor/engine?
What is also really very puzzling is the manual went into great detail about marking the pressure plate up with the flywheel and even replacing the crankshaft to flywheel bolts and torque settings etc but no mention of marking up the position of the flywheel to the crankshaft.
Unfortunately I followed it to the letter and now getting a really bad feeling. If I do refit the gearbox the engine may not start due to an out of align flywheel and the whole lot will have to be taken back out! Am I being a drama queen?
There is a sensor on the cam on my model.
If any one has any advise or information on my dilemma?
It would so much appreciated if you could spare a little time for a reply.
Thank you in advance Paul
Problem added: Feb 4, 2010 (14 years ago)
i think you might find that the flywheel bolt holes are probably offset and will only fit in one position therfore it should be in the same position that you took it off to be sure see if it fits in other positions or measure the distance between the mounting holes
Answered Feb 5, 2010 (14 years ago)
dont know if this helps but, when i broke down and called out the RAC, he removed the said crank sensor and cleaned it, then replaced it. at no time did he mark or line it up when he replaced it. he did explain that the movement of the wheel created a minute current, as in a electromagnet, which then sends a message to the ECU to tell it the engine is turning over and to allow fuel/spark to happen.
Answered Feb 5, 2010 (14 years ago)
no need to mark anything up at all the crank sensor is there to tell the ecu when the engine is spinning it does not matter if the flywheel is in a different position to when you removed it if it did matter there would be a pin offset between the crank and flywheel
Answered Feb 5, 2010 (14 years ago)
Hello again
I would like to thank every one for all the helpful and interesting replies.
As an update. I removed the flywheel today, rotated and tried to reassemble .Yep the flywheel only can go in one position or the fixing holes are out.
Dooh…
I think I chosen the easer of the two options Reading the cam belt marking and working out the sensor position seamed a little like hard work due to bracing the engine safely, as the top engine mount needed to be removed leaving only one mounting supporting plus two unstable axel stands
I obviously got lucky and found the correct position straight away.
What also through me, was cleaning the holes outs while the flywheel was held on with the one old bolt, as the treads where a little tight for me. What also didn’t help was the poor lighting conditions I have been working in.
I then felt later after reading the replies that I might have re-taped the holes as well as the flywheel if the offset wasn’t that noticeable .If you get my drift?
Yep, all very flappy.
I have to make an confession I am not userly this bad but I have gave up smoking on the 17-01-10 from about 20-30 a day and over the last week or so I am finding my self getting very stressed with a over questioning mind that seems to be looking for conundrums in absolutely anything or nothing.
I sure it will pass.
And, Yep you are right…. If the e.c.u does not see this pulse correctly it will not allow the pump to fuel the engine via the injectors.
Many thanks and kind regards
Paul.
I would like to thank every one for all the helpful and interesting replies.
As an update. I removed the flywheel today, rotated and tried to reassemble .Yep the flywheel only can go in one position or the fixing holes are out.
Dooh…
I think I chosen the easer of the two options Reading the cam belt marking and working out the sensor position seamed a little like hard work due to bracing the engine safely, as the top engine mount needed to be removed leaving only one mounting supporting plus two unstable axel stands
I obviously got lucky and found the correct position straight away.
What also through me, was cleaning the holes outs while the flywheel was held on with the one old bolt, as the treads where a little tight for me. What also didn’t help was the poor lighting conditions I have been working in.
I then felt later after reading the replies that I might have re-taped the holes as well as the flywheel if the offset wasn’t that noticeable .If you get my drift?
Yep, all very flappy.
I have to make an confession I am not userly this bad but I have gave up smoking on the 17-01-10 from about 20-30 a day and over the last week or so I am finding my self getting very stressed with a over questioning mind that seems to be looking for conundrums in absolutely anything or nothing.
I sure it will pass.
And, Yep you are right…. If the e.c.u does not see this pulse correctly it will not allow the pump to fuel the engine via the injectors.
Many thanks and kind regards
Paul.
Answered Feb 6, 2010 (14 years ago)
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