Re: Clunk in driveline
[Re: Tinman761]
#2263430
03/04/17 09:27 PM
03/04/17 09:27 PM
|
Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
|
About to go away
Joined: Sep 2007
Posts: 14,889
up yours
|
Did you turn the driveshaft by hand to narrow down the location of the noise?
Did you try to push up on the rear of the trans to see if the mount is separating?
Did you look around the trans tunnel, fore and aft, to see if there are any witness marks? Do the same with the exhaust.
Inspect the rear suspension as it make be the source due to loading and unloading as you shift.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
|
|
|
Re: Clunk in driveline
[Re: Tinman761]
#2263450
03/04/17 10:15 PM
03/04/17 10:15 PM
|
Joined: Jan 2003
Posts: 7,538 Albany, NY
67SATisfaction
The member whose name is actually Art
|
The member whose name is actually Art
Joined: Jan 2003
Posts: 7,538
Albany, NY
|
Get someone to hang their head down low out of the passenger door to hear where it's coming from is my best suggestion, narrow the location down.
Sounds like a u-joint or a mount.. but could it be from an entirely different untouched part of the drivetrain? Anything like play at the drive axles, wheel bearings, anything like that?
Not sure I'd be too distracted by what's warm vs cool - both ends of my driveshaft definitely get warm during a drive.
- Art
65 Satellite hardtop 361/4bbl console 727 2.76 67 Satellite convert 383/2bbl column 727 3.23 67 Lancia Fulvia Sport 1.3 Zagato. Alloy body, 1.3L V4 DOHC 4-spd 67 Lancia Fulvia Rallye 1.3. Alloy panel, 1.3L V4 DOHC 4-spd 71 Alfa Romeo GT Junior 1300 Zagato, 1.3L 4cyl DOHC hemi 5-spd 82 Alfa Romeo GTV6 2.5L SOHC hemi V6 5-spd transaxle 75 Maserati Bora US spec 4.9L DOHC hemi V8 5-spd ZF 77 Maserati Khamsin Euro spec 4.9L DOHC hemi V8 5-spd ZF 07 Aston Martin DB9 6.0L DOHC V12 6spd transaxle
|
|
|
Re: Clunk in driveline
[Re: Tinman761]
#2263512
03/05/17 01:52 AM
03/05/17 01:52 AM
|
Joined: Aug 2006
Posts: 2,511 God's Country Maryland
GODSCOUNTRY340
master
|
master
Joined: Aug 2006
Posts: 2,511
God's Country Maryland
|
Don't overlook your motor mounts, especially the rubber biscuit mounts that came on the '67's. Here's the easy way to test them. Open your hood and start your engine, you should be able to see the engine or air cleaner through the gap between the raised hood and bottom of the windshield. Now put the trans in low gear and power brake the engine for just a few seconds. If your left side motor mount is bad you will see the left side of the engine raise up a good bit from the torque. Now do the same thing in reverse and watch the right side. I've seen them so bad the engine torques until the exhaust bangs off the floors. The rubber insulators will appear good until you put the torque to them, give it a try.
I love the smell of Deer guts in the morning, it smells like... VICTORY!
|
|
|
Re: Clunk in driveline
[Re: Tinman761]
#2263536
03/05/17 02:45 AM
03/05/17 02:45 AM
|
Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
|
One thing I found today while running it was the driveshaft is extremely warm near the tail shaft of trans, but at the differential is cool. I would pull the shaft & check that the front yoke/ ujoint moves smoothly back & forth in both planes. pull the rear ujoint caps & how much end play the front yoke has into the trans (I like no more than 3/4"). extension housing rear bushing play. If all good I would swap in another pig (non sure grip/any ratio) what ever you have laying around to confirm/elim that. is the backlash OK on the one that is in there?
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: Clunk in driveline
[Re: Tinman761]
#2263550
03/05/17 03:30 AM
03/05/17 03:30 AM
|
Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
|
No movement nothing seems to move except when it shifts second you can see the diff move as it clunks Moves how? yes you can post a video (not sure how but others will help you).
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: Clunk in driveline
[Re: Tinman761]
#2263587
03/05/17 11:27 AM
03/05/17 11:27 AM
|
Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
|
Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
|
I think if you could see it, it might help narrow it down Try e mailing it to fmd@twc.com and I will see if I can post it for you if you want.
|
|
|
Re: Clunk in driveline
[Re: Tinman761]
#2263639
03/05/17 01:17 PM
03/05/17 01:17 PM
|
Joined: Dec 2005
Posts: 4,231 State of retirement
52savoy
master
|
master
Joined: Dec 2005
Posts: 4,231
State of retirement
|
Did you check backlash on the rear-end? If the ring gear is set wrong or has a lot of wear it will clunk. You can do quick check by unbolting the driveshaft from the pinion yoke and see how much play is in the yoke. It should measure between .006 to .010 I'm getting a clunk on my D200 when it's put in reverse but haven't had a chance to look at it. Ring and Pinion specs
Last edited by 52savoy; 03/05/17 01:19 PM.
|
|
|
Re: Clunk in driveline
[Re: Tinman761]
#2263846
03/05/17 06:08 PM
03/05/17 06:08 PM
|
Joined: Jun 2006
Posts: 221 Illinois
Tinman761
OP
enthusiast
|
OP
enthusiast
Joined: Jun 2006
Posts: 221
Illinois
|
Just a quick update. Pulled the driveshaft checked ujoints again. Small resistance but. Ow grinding found. Greased and reinstalled. While in neutral, rotating driveshaft back and forth I hear a clanking in the tail shaft section. I know the rear springs are worn so I put c clamps on the leafs to simulate load in the car while driving, but that didn't help( cars is off ground). I hear the clunk noise in the car on passenger side, and sometimes while shifting from drive to reverse. Something else I just discovered, while rotating the passenger side wheel back and forth I get some play before the drive will turn and hear gears meshing? Drivers side is not so pronounced. Is this normal? Trans is in neutral
Last edited by Tinman761; 03/05/17 06:28 PM.
|
|
|
Re: Clunk in driveline
[Re: Tinman761]
#2263908
03/05/17 08:20 PM
03/05/17 08:20 PM
|
Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
|
While in neutral, rotating driveshaft back and forth I hear a clanking in the tail shaft section. Something else I just discovered, while rotating the passenger side wheel back and forth I get some play before the drive will turn and hear gears meshing? That is what Sherlock Holmes, Lieutenant Kenda and Columbo would (likely) call a (serious) clue(s). The clanking sounds real serious & I think that is what you are hearing when it shifts, if you can hear it now with what you are doing just imagine what is happening when the load is released on a shift. & thirdly the ujoints should move SMOOTHLY in there plane of travel (both ways in front yoke) back & forth.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: Clunk in driveline
[Re: Tinman761]
#2263928
03/05/17 08:51 PM
03/05/17 08:51 PM
|
Joined: Jun 2006
Posts: 221 Illinois
Tinman761
OP
enthusiast
|
OP
enthusiast
Joined: Jun 2006
Posts: 221
Illinois
|
I agree with you. So what would you do next? I'm at a standstill right now. Short of pulling the trans out and having it rebuilt or tore down to see if it's the prob. Or again pulling the third member out and have that looked at. Frustrating. Should you hear a gear noise when rotating the tire back and forth. Is it also normal to hear a noise out of the tail shaft area on the trans while rotating the shaft back and forth. Things I don't really have much experience with. Is it possible to post a video on moparts?
Last edited by Tinman761; 03/05/17 09:10 PM.
|
|
|
|
|