This doesn't seem to happen on my SG, even when hitting 2 balls up the left lane in a short period of time just like your scenario. It just kicks them out with maybe a 1 second delay between balls and you hear 2 distinct laser sounds associated with each kickout.

I tend to have a different issue with the right VUK. The issue I have on mine is sometimes a ball will get stuck and missing behind the right Horus guard & VUK, then randomly get kicked out by the VUK in a later game when exchanging quartz, especially with advance super jackpot. It may take 10-15 games before this happens though, and the game alerts that it's missing a ball.

Hopefully, someone more knowledgable chimes in with a suggestion.

Hmm, I'll have to test that.

Yeap that happened to me too when I owned the SG, I would just nudge the pin at the same time it would kick and eventually they would both come out.

There are three VUKs at the rear of the playfield on SG.

The "Left" VUK is fed either from the left Horus guard or through a subway from a pyramid shot.

The "Center" VUK is fed from the right Horus guard.

The "Right" VUK is fed from a shot up the right side Sarcophagus when the drop is down.

It is possible for shots up the left and right Horus to go past the hole for the VUK and get stuck there. There is foam on the rear rail on the left horus for the ball to bounce and go in the hole for the upkick. There is a post on the right Horus which should have rubber on it for the ball to bounce into the VUK.

For the right side it might be a simple matter of bad rubber on the post or the playfield worn enough to not allow the ball to roll back to the VUK.

For the left side, the spring on the VUK might need adjusting to allow proper feeding of the ball from the subway.

In hundreds, if not over a 1000 games, I can only recall the ball getting stuck in the left VUK twice and getting it dislodged with a nudge, never receiving a "Ball stuck" message. I have had instances where with multiple balls it misfires and refires a couple of times until it clears the balls out of the VUK. I wouldn't consider it a design issue, more a wear/maintenance issue.

I will say I have had the ball lost under the apron three times in that span as it is possible with the gate and how quickly a ball shoots in there for it to get lost. Even then that's still not a lot, relatively speaking, perhaps three times in 9-10,000 balls.

viperrwk

Thanks for the great information Viper. One question...Do I have to take everything apart to get the area with the post behind the VUK? In other words, is there an easy way to replace the rubber on that post without dismantling everything? I took a look and couldn't see a way to get into that area without removing at least the glider mechanism.

Thanks,
Luke

I never had balls get stuck, where the VUK couldn't shoot them out. Did you rebuilt your VUK's? Make sure you have new sleeves.

Are you asking me? On mine, the balls on my never get stuck in the VUK. They get stuck past the VUK (behind the right guard target).

--Luke

shouldn't. Is your foam in place? Never had one get stuck behind.