shouldn't be any issues since the speed sensor is in the differential. Shut the engine off before you put it into park.
Okay,
I am contemplating a test to try and sort out a source of vibration that I thought was gone. Thinking of removing the halfshafts (from rear wheels) to see if the vibration is present at 55 - 65 mph indicated speed. Is there any risk that a "system" either engine control, ABS or tranny will prevent this test from being conducted? ie, remove the halfshafts then run the engine in drive (autotrans) to see if vibration present? I need to do the differential seals anyway so why not try? I am curious as to if the center bearing went south so exhaust and driveshaft will likely come out next.
Thanks,
Scott
Before anyone asks:
New tranny and engine mounts within 2 months, rebuilt driveshaft (50miles) with center bearing, new front end components include thrust and control arms with M5 (within 3K miles), shocks/struts within 25K miles, inspected front wheel bearings and passenger rear bearing - all fine. Tires were just rebalanced 3 days ago.
1995 BMW 525i w/139K miles, EAT Chip - (Gone)
07 525i 22K, 07 328xi (41K)
1982 Mazda RX-7 w/147K miles (Back again!)
shouldn't be any issues since the speed sensor is in the differential. Shut the engine off before you put it into park.
95 E34 530I V2.37
===========
Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
HID 5000k low 3000k fogs
dynaudio seps. mc intosh amp
ACS w/yokohama advan sport tires
Race logic TractionControl
1995 BMW 525i w/139K miles, EAT Chip - (Gone)
07 525i 22K, 07 328xi (41K)
1982 Mazda RX-7 w/147K miles (Back again!)
Actually I did make progress with one son - his first car was a $500 Plymouth neon that required all new brakes (I "let" him rebuild the calipers for $2 seal kit) as well as he had to pull the engine (yes!) and put new seals and a headgasket in. He spent one summer working on that car and now regrets selling it to his younger brother because he "needed" to buy a jeep...
Now, my second son is more of a talker than a doer....
1995 BMW 525i w/139K miles, EAT Chip - (Gone)
07 525i 22K, 07 328xi (41K)
1982 Mazda RX-7 w/147K miles (Back again!)
Halfshafts are out - both units, the CV joint by the diff seems very dry and notchy. Boot is fine. Checking on replacements...
Haven't spun it up to 55mp with halfshaft out (yet), but don't think I will see a problem.
Scott
1995 BMW 525i w/139K miles, EAT Chip - (Gone)
07 525i 22K, 07 328xi (41K)
1982 Mazda RX-7 w/147K miles (Back again!)
Okay,
It was not the halfshafts...
Running the car without them results in much vibration between 50 and 60 mph. I took a video but it really doesn't show the problem.
Out comes the exhaust to check how things are with this rebuilt driveshaft. I suppose I screwed up on the preload which will be the first thing I check. Did I ever mention how much I hate working on this exhaust?
One thing I did notice is that there is some notchiness in the differential when (driveshaft locked) I spin one end of the output shafts (both halfshaft are removed). I can definitely feel repeatable gears which may or may not be okay. Will have to check with driveshaft out and then move the front pinion.
Scott
1995 BMW 525i w/139K miles, EAT Chip - (Gone)
07 525i 22K, 07 328xi (41K)
1982 Mazda RX-7 w/147K miles (Back again!)
that gear feeling when turning the outputs in opposite direction would have nothing to do with a vibration. I think your right back at the driveshaft. Is there a chance that the driveshaft is in there out of phase?
95 E34 530I V2.37
===========
Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy