« previous next »
Pages: [1] 2 3 ... 13   Go Down

Author Topic: Driveline Vibration  (Read 63543 times)

Offline philo_beddoe

  • Senior Member
  • ****
  • Posts: 2750
  • 77 C-10
Driveline Vibration
« on: July 08, 2016, 01:00:20 pm »
https://vimeo.com/173942618

Noticed when changing u joints.
« Last Edit: September 26, 2016, 12:42:11 pm by Irish_Alley »
Logged
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19170
Re: Should this do this?
« Reply #1 on: July 08, 2016, 05:09:21 pm »
The bushing is what keeps the driveshaft centered in the tailshaft housing
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline hatzie

  • Junior Member
  • ***
  • Posts: 771
Re: Should this do this?
« Reply #2 on: July 08, 2016, 05:52:56 pm »
The Yoke fits semi tight on those splines and the outside of the yoke rides in a bushing in the tail shaft housing to keep it centered.
Without the yoke installed the output shaft is essentially missing the end bearing...  Not sure how much play there's supposed to be but that video really doesn't shock me.
I don't think I'd worry if it's not making noise with the driveshaft installed.
Logged
SVC & wiring mans --> Here http://tinyurl.com/7387BRD-SVCMAN or My Bucket @ http://tinyurl.com/SQ-SVCMAN
Parts & Illustr Books -->http://tinyurl.com/SqParts
GMSTG Textbooks-->http://tinyurl.com/STG-TEXTBK
Radio Manuals-->http://tinyurl.com/DELCORADSVC

Offline philo_beddoe

  • Senior Member
  • ****
  • Posts: 2750
  • 77 C-10
Re: Should this do this?
« Reply #3 on: July 08, 2016, 06:54:50 pm »
No noise, shifts fine. A little humm vibration is still present after installing the new ujoints, guess i'll have the shaft balanced and go from there. Put in some nice spicer joints, didnt have any problems.
Logged
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline philo_beddoe

  • Senior Member
  • ****
  • Posts: 2750
  • 77 C-10
Re: Should this do this?
« Reply #4 on: July 09, 2016, 10:40:07 pm »
Update: been driving around all day, seems quite smooth. May or may not get dshaft balanced.
Logged
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19170
Re: Should this do this?
« Reply #5 on: July 10, 2016, 08:01:02 am »
Is the driveshaft moving around in the tailshaft? Is the seal leaking? If so replace the bushing and seal.
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline philo_beddoe

  • Senior Member
  • ****
  • Posts: 2750
  • 77 C-10
Re: Should this do this?
« Reply #6 on: July 11, 2016, 06:55:23 pm »
I'll check for movement, remember a while back, that weep hole started leaking a little? Then i plugged it with RTV, and the leaking stopped. Does that mean anything?
Logged
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline philo_beddoe

  • Senior Member
  • ****
  • Posts: 2750
  • 77 C-10
Should this do this?
« Reply #7 on: July 11, 2016, 07:06:47 pm »
Update: just checked,, no movement at all in the tailshaft.

Oh, when i removed the dshaft, a little tranny fluid came out where the slip yoke goes. Is that ok?
« Last Edit: July 11, 2016, 07:09:57 pm by philo_beddoe »
Logged
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19170
Re: Should this do this?
« Reply #8 on: July 12, 2016, 08:41:01 am »
Yes, just check the fluid level in the trans.
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline philo_beddoe

  • Senior Member
  • ****
  • Posts: 2750
  • 77 C-10
Re: Should this do this?
« Reply #9 on: July 12, 2016, 01:32:43 pm »
Ok, just a few ounces came out. I put it back in. Thanks..
Logged
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline philo_beddoe

  • Senior Member
  • ****
  • Posts: 2750
  • 77 C-10
Should this do this?
« Reply #10 on: September 12, 2016, 09:51:56 pm »
Quote from: VileZambonie on July 10, 2016, 08:01:02 am
Is the driveshaft moving around in the tailshaft? Is the seal leaking? If so replace the bushing and seal.

Whoops, i just created another post on this topic, go ahead and delete "output shaft bushing". (Admin)

Anyway, ok, so how do we change that bushing and seal?
« Last Edit: September 12, 2016, 09:55:41 pm by philo_beddoe »
Logged
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline philo_beddoe

  • Senior Member
  • ****
  • Posts: 2750
  • 77 C-10
Should this do this?
« Reply #11 on: September 13, 2016, 07:40:50 am »
New slip yoke, Ujoints and balanced dshaft---still have driveline vibe. Just ordered new tail shaft bushing and seal from summit.  And the saga continues.
Logged
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19170
Re: Should this do this?
« Reply #12 on: September 13, 2016, 11:06:10 am »
What are you feeling exactly? You have another vibration, when? When does it happen?
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline philo_beddoe

  • Senior Member
  • ****
  • Posts: 2750
  • 77 C-10
Should this do this?
« Reply #13 on: September 13, 2016, 12:48:57 pm »
Its the same driveline vibe since before you did the motor. It starts at about 30-34 mph and peaks out at 45 mph. Rrrruuuuummmm, Rrruummmm, Rrruuummmm. There was bushing wear on my slip yoke. Went to CT Driveshaft and got a new yoke, and balanced the shaft, and my ujoints are perfect. Gonna try the new tailshaft bushing. I did some research and saw this to be common with the type of vibe i have.

If it still does it after the new bushing i'm leaving truck in your driveway!! Lol
Logged
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline zieg85

  • Global Moderator
  • Senior Member
  • ****
  • Posts: 7595
    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: Should this do this?
« Reply #14 on: September 13, 2016, 12:57:49 pm »
How tight are your exhaust system hangers?
Logged
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/
Pages: [1] 2 3 ... 13   Go Up
« previous next »