Had the same issue, slipping in v-boost. Took out plates and measured them, still in spec according to manual. Replaced them and used Rotella 15w40, no more slippage.
I have the same story as yours, except I had sold mine to a family friend who took excellent, unmolested care of it. Here is a picture of it the day I brought it back home! BTW I just picked up a 2025 Audi SQ5 for the family go getter!
Those are your stator wires, best thing to do is to cut out plug and wire them direct with a solder joint. Common issue with VMax-looks like there was heat at one time at that connection.
I had a similar problem this spring. Checking the R/R I found a bad diode-replaced R/R and still had issue. Checked stator and had .42 ohms leg to leg. (Fluke 189 meter). I got .1 ohms when going from 1 leg to ground on each. I had 50-60 volts reving engine with stator disconnected. as soon as I...
Did you check the rectifier diodes per Fire Medics post above? Did you check the AC voltages on each leg while running and plugged in? did you check the AC voltages on each leg unplugged while running? I think you will find your answer somewhere in these 3 questions.
I did a version of MaxMidnights attachment for the hot start fix. I took the starter apart and cleaned everything and made a stud and mounted it to the brush holder that went thru the back cover (drilled hole) and nutted it from both sides. Have not had any issue with starter since.
On your 3 stator leads check from each one to ground-your meter should show OL or infinity ohms. There is no check for this in the factory manual. If any of them are not OL your stator is shorted to ground and needs to be replaced along with the regulator now. Mine tested at .4 0hms between all...
I was thinking that the carbs were the issue also so I had pulled them off last fall and went thru them completely including the ultrasonic bath. The fuel tank is absolutely clean on the inside and I had replaced the fuel filter with OEM at that time. There was nothing that I could see for...
Well I replaced my plug caps and wires and took for a ride yesterday. Still have same issue, noticed if I hold throttle steady at 2500-3000 rpms while cruising with no load on engine (flat level road) it will start to miss/stumble. If I jump up a gear (at the same speed) the stumble goes away...