Fuel level sender and driveshaft question

#1

Didn’t know where else to post this, so here it is -------

  1. Is the reference voltage to the fuel level sender 12 volts, or something less?

  2. Looking to remove the harmonic balancer on the trans output shaft. I appears that the drive shaft yoke will bolt right to the output shaft yoke. Is that correct?

#2
  1. I think you’re referring to the guibo. Is it legal to remove it? Secondly… Why?
#3

Z3SpdDmn wrote:

Don’t know, and because with a short shifter the shift arm rubs. I have bent the arm, but is just so little clearance. Just considering choices. If it isn’t legal, then that solves the problem !!!

#4

The balancer can, and should, be removed.

The level sensor(s) is powered by system voltage (12.7-~14v).

#5

9.3.12.9. The vibration damper may be removed.

Looks like you’re in luck!!

#6

PERFECT. Thanks so much.

BTW, I race a Saturn Sky Redline in SCCA Solo. As helpful as the BMW community has been through my work on a friend’s Spec E30 project, the Kappa (platform - Sky and Solstice) is equally unhelpful. A shame for the Kappa, and true benefit for E30s.

#7

The guibo should not be removed - it prevents shock loads to the differential. The vibration dampener is a separate item that can be removed.
Ed

#8

Okay, somebody needs to define “guibo” and “vibration damper”. I know about the v.d. on the crankshaft. What I am looking at is a transmission output shaft yoke with three bolt holes, a (~6-8" diameter) cup shaped doodad bolted to that, and a driveshaft yoke (with the same bolt pattern as the output shaft yoke) that is bolted to the inside of the cup shaped thingy.

#9

snaponbob wrote:

The guibo, or “flexdisk” is part #2 in this picture. It’s rubber and about an inch thick. And it needs to stay in place so tranny and driveshaft can go off-axis a bit. If yours is likely as old as your car, I’d replace it.
http://www.realoem.com/bmw/showparts.do?model=1113&mospid=47309&btnr=26_0023&hg=26&fg=10

#10

Item #3 is the vibration damper. It can be removed. It could or will interfere with an aftermarket shift kit.

http://www.realoem.com/bmw/showparts.do?model=1113&mospid=47309&btnr=26_0122&hg=26&fg=10

#11

I am working on an 88 325is. I recall seeing #3, but not #2. The car is back on stands, so I will look at it again in the AM.

#12

Are there two different drive line set ups? any advantage to either?