The balancing folk identified that the spigot on the front flange of the tailshaft and the "cup" in the coupler did not perfectly match. To quote Jeff, "any movement is too much". They changed the flange on the front of the tailshaft then balanced the whole lot together.
(I suspect that the flange was imperial and someone machined the coupler to a metric size believing that the flange was metric.)
The front flange holes now comfortably fit the M10 bolts (butchering gone).
It's a
I didn't put it on stands to test it as I had very little time, but I hope to do an axle stand test maybe be next weekend.
My plans is to:
1. Record the vibration audio again just because I am not sure that it's vibrating at tailshaft speed - it feels double that.
2. Try my SS hoseclamp at 45deg increments.
3. Try dampening out the front motor cradle (with my hands) and see how much that is contributing.
I drove to work with about 4.5km of my 15km drive on the tollway this morning at around 90 to 95km/h (traffic speed in left lane) and the Vogue used almost the identical amount of power as when I drive to work via slow backroads. I backed into my parking spot with a reading of 3.14 AH. That's about 125 Wh/km battery to wheel. Wind was practically non-existant - the BOM site also showed almost no doppler wind reading. Current consumption at speed was quite modest. So the Vogue CD isn't awful at all.
2 comments:
Hi John, are the bolts an interference fit?, and are they the same bolts as used when the shaft was balanced?. If not that could explain your residual problem.
Andrew
Hi Andrew
Sorry I could publish your comment last night but for some reason couldn't respond. Yes, same bolts. I gave them everything and they made up a half key to compensate for the key mass as well. I should have time to check it more thoroughly this weekend. All I did last Sunday was get it back on and drive it.
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