I need some advice. I took the engine out of my 1997 Centauro to cure a rear crank seal leak. I separated it from the gearbox leaving that in the frame. While the block was on the floor I adjusted the tension on the timing belts. To do this I rotated the engine using the nut on the end of the intermediate shaft holding the cam belt pulleys. I’ve now reinstalled the engine but it won’t start and the symptoms would suggest the timing has moved. Any ideas what might have happened before I dive into it?
If you’ve only tensioned the belts that won’t alter the timing, I would look elsewhere, everything plugged back up, ignition coil feeds inadvertently swapped, failed cam sensor ?
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Have you put the flywheel back in the same place that it came out?
I’m no expert on the modern bikes but presumably there is some sort of crank position sensor that picks up a signal off the flywheel?
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Thanks for your suggestions. Yes the flywheel is on correctly, I marked the end of the crank and all the corresponding reference marks. The timing is triggered off a toothed wheel on the intermediate shaft driving the cam belts. It is this shaft that I used to turn over the engine to check the belts. As for the wiring, you can’t swap wires as they all have individual shaped plugs, except the coils, which I didn’t unplug. The coils are fitted either side of the frame and feed the cylinder on that side. I just wonder if I could have damaged the shaft by putting more stress than it was designed for by using it to turn the engine over?
Stupid questions, is the solenoid clicking on because the plugs for the solenoid and fuel level are identical from memory.
Lack of spark or injection, do you know if the ecu powers up, relay’s or fuses if not.
Bad earths to the ecu and or the front end.
Another problem I came across was the camshaft pickup going open circuit, so no spark or injection.
Hope that helps.
Gari.
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Well I found the problem, I was looking at it but not seeing it because I didn’t think it could happen. The right cylinder cam belt had jumped a tooth. I thought I had been so careful I still can’t understand how. Anyway once it has happened It’s not obvious, the reference mark on right cylinder cam doesn’t line up at TDC on that cylinder it only lines up when the left cylinder is at TDC, all initial engine timing is set from that side. It was only the insistence of a more technically minded friend telling me that it had to be the answer that I double checked everything and there it was. So thank you for your input, all of your suggestions were valid but not applicable on this occasion, perhaps this episode will help someone else in the future.
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