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boris tarpit · Post by **boris tarpit** » 06 Jun 2008 19:53

I've had the degree disc on the bike and as far as I can work out the timing corresponds to what's shown for the L5 II cam but the lift on my cam is 7.5mm. This sounds like a hell of a lot. I haven't got a dial guage I'm using a digital vernier clamped (gently) to the frame, the end resting on the end of the valve and that's the reading I get. . . . .

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EVguru · Post by **EVguru** » 06 Jun 2008 22:15

Don't forget the rocker ratio.

And......

Are you checking the timing with 1mm clearance?

boris tarpit · Post by **boris tarpit** » 09 Jun 2008 08:30

Hello Paul. I've got 1mm gap at the tappet (tappet thread pitch 1mm so one complete turn 1mm - right??) and am taking the reading on the degree disc when the gap closes. I'm measuring the valve lift at the spring retainer with the tappet set at zero. . . . . having just typed that it doesn't look right, am supposed to use the 1mm gap to measure valve lift as well?? I am aren't I?? That would explain it then. . . . .

EVguru · Post by **EVguru** » 09 Jun 2008 09:33

The Dutch site lists the lift for the L5 cam as 5.95mm (inlet) wich would give you 7.5mm valve lift with a 1.26:1 rocker ratio.

edit:

Just found a reference to a rocker ratio of 1.375:1 which still doesn't quite add up. Thinking about it, I always thought the ration was closer to 1.3:1. That would match better with 5.65mm cam lift giving 7.5mm valve lift (1.327:1).

boris tarpit · Post by **boris tarpit** » 05 Jul 2008 12:35

I need some more help, people. During one of the attempted rewinds I got fed up of the wiring for the alternator flopping about and catching on things so I cut it off. I took a photo with my phone so's I'd know where to reconnect the wires but I seem to have lost it - it's not in the phone's memory, I must have not saved it properly.

I have a red wire two yellow and a green - the green I know about but where do the others go?? The manual doesnt help and I can't find a picture of an early stator on the net.. Mine is a Ducati Electronica with the flywheel machined all over it's surface, the alternator has five poles plus the source coil. . .

Can anyone help???

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