In a message dated 98-04-27 12:50:21 EDT, carbuff@scooter.net writes:
> >Perhaps the installation of the sensor unit is such that the cap-rotor are
> not
> >in sync when the unit fires? Re-adjust this appropriately...
>
> OK, better explain this to me in more detail.
>
> Followed the Crane instructions faithfully, marking the Distributor body
etc.
>
>
> Are you saying that the unit is firing at the wrong time on overrun? And
> that the position of the sensor (Optical pickup) on the points plate can
> cause this even after the Dist. is adjusted to provide proper timing at
idle?
>
>
> Just trying to understand the theory....
>
With your present adjustment, say at 6 degrees before top dead center (or
whatever), position the crank pulley to that position and take off the
distributor cap, noting the plug wire contact position for cylinder 1. If the
rotor isn't pointing directly at that contact (or cylinder 3 if 180 degrees
off) you should adjust the trigger till it is. If you get good contact at
idle and the advance changes the rotor-cap alignment to open the contact, you
get a spark delay and also weaker spark. Also check rotation of distributor
(I'm doing this from memory), you may wish to have idle contact on the
leading edge of the rotor so there's plenty of metal going by the cap for
advance..
I lucked out and did it right the first time, but in tracking another problem
re-did it more thouroughly...
Know what I mean?
I must admit that I don't think this is the cause of the problem described
(upshifting over 3000), but the fact that it is a recent installation bears
looking at. Not being familiar with some of the later polution equipment, it
sounds to be in that arena, but you never know!
If you want to give me a call, email me for my # (Massachusetts). at
CWNicholls@aol.com
Clark
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