steve_earwig wrote:Perhaps something got unplugged while you had the engine dropped for the clutch
That was the only conclusion we could come to as well. So we looked and looked and couldn't find anything that was unplugged that wasn't unplugged before. I will retuen tonight and have another look. It is either something obvious that I am missing or it is a really strange gremlin in the wiring.
What is annoying me most is that it ran but something I have done, whilst trying to recify a fault I introduced, has created another problem.
If i remember correctly the crank sensor reads from the flywheel, which is right in the vicinity where you were working while redoing the clutch. Could the clutch being in wrong have damaged the crank sensor? What was the banging, something connecting maybe? If you can track down the sensor and youve got a meter it should have a resistance and when cranking, an AC voltage (if i remember right). Might be worth taking it out and visually checking it too.
Hope thuis helps,
Mick.
406 2.0 HDI D9 in Red 2001.
Volvo C30 1.6 2007(its the wifes).
Renault Clio 197 Cup. 2.0 2008 My Weekend Toy and plaything.
helmik wrote:If i remember correctly the crank sensor reads from the flywheel, which is right in the vicinity where you were working while redoing the clutch. Could the clutch being in wrong have damaged the crank sensor? What was the banging, something connecting maybe? If you can track down the sensor and youve got a meter it should have a resistance and when cranking, an AC voltage (if i remember right). Might be worth taking it out and visually checking it too.
Hope thuis helps,
Mick.
The crank sensor, is that the small (two pin) plug on the top of the bell-housing? If so it was removed and re-fitted during the operation but was checked for seating afterwards. Is the sensor itself, inside the bell-housing, susceptible to damage easily? I will take a multimeter with me when I go back to the garage and see what I get. Unfortunately I will be on my own for a bit as Malcolm is getting his eyes lasered and will be unable to assist for a week or two.
The noise coming from the gearbox was the springs on the clutch plate knocking on the fly wheel bolts. There was evidence of this on the clutch plate when removed but the fly wheel bolts looked fine. It was just my mistake when re-fitting the clutch plate and I got it reversed.
Sounds like thats it, theres normally just 2 connections to a crank sensor. It reads from the flywheel, tells the engine ECU when to inject to keep it simple. Only thinking its that as its in the area you were working after it ran ok, seems logical. Its normally just one bolt holding it in place so might be worth taking it out to check it over, just in case theres any damage evident. You can check it off the car too, AC voltage can be generated by waving a spanner up and down in front of the sensor to replicate what the flywheel would do. Doesnt give out much voltage anyway so might be easier is all.
Mick.
406 2.0 HDI D9 in Red 2001.
Volvo C30 1.6 2007(its the wifes).
Renault Clio 197 Cup. 2.0 2008 My Weekend Toy and plaything.
I rang the motor factors this morning and they had the crankshaft position sensor so I managed to pick it up after lunch. I bunked off work (instead of going in for an hour after a meeting) and went to fit it. The part that I was supplied didn't fit (the output clip was angled towards the rear of the car, not horizontal, and so fouled on one of the pipes at the back) so I took it back out. At this point one of Malcolm's friends turned up to do some work on another car and he is a car electrician by trade. He had brought his scope so we decided to test the old one as a precaution. As soon as he picked up the plug on the loom to fit it he noticed that one of the pins had been dislodged and was pushed back. Thus he surmised that there was nothing wrong with my sensor that connecting it would not solve! So we reattached the old sensor and connected the plug. He then made sure that the connector had actually connected and, once again, it fired on the button. I refitted the rest of the engine covers, the bonnet and the wheels and drove it home. I have tested the heater (it works), the air-conditioning (which works), the radio (which works as well as it did before) and the power steering is also good. So that is a job well done.
I will run it around for a few days and then will perform a full service on the engine to ensure that any dirt or cr@p that is inside will be flushed out and that's that. I may well need to change the lower suspension ball joints (I think that I managed to split the rubbers when I removed the hubs) but I will also have to change the front disks reasonably soon so will combine both operations when I next put it up on Malcolm's 4 pillar lift.
1996 406 1.8LX Got a bad case of hydro lock!
1996 406 Executive 2.0 Turbo XU10J2TE No longer hangin' on in there
1997 Honda CB500V
2003 Volvo V40 1.8 GDi SE killed by a nutter in a beemer 5 series
2008 Mondeo 2.0 TDCi Titanium X
"Always look on the bright side of life, dedo, dedo dedodedo"
Well done Jon, those crank sensors can be a bit awkward and easily damaged, when we changed Puggy's clutch recently, we had to be careful refitting the gearbox because the sensor was in the way.
I had a Nissan 4x4 on which I replaced the clutch, the crank sensor was exactly the same, bolted to the gearbox casing at the top, I foolishly destroyed it because I forgot to remove it on removing the gearbox ....60 quids worth of silly mistake
