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Old 01-14-2020, 10:36 AM   #21
TJ
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Default Re: Vibration - rumble

Sounds to me like some brake hardware has come loose. Pull the drum and you'll soon find out.
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Old 01-14-2020, 06:51 PM   #22
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Default Re: Vibration - rumble

Well I didn't get a chance to pull the hubs yesterday , had to get a new TV

yes it sure does sound like brake hardware, but thats not going to cause the vibration and rumble at specific speed , its both sides and with the brakes backed off.. the hand brake still works..

Mart, well spotted, I would not have know the year of the drums and I think I understand what you mean about the nubs... Had a quick look at the vids again and it looks like someone may have already ground them a bit .. do they have to be completely flat?
Never had an issue with the rear brakes but I'll check that all out. Thanks for looking guys!
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Old 01-15-2020, 07:43 AM   #23
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Default Re: Vibration - rumble

https://youtu.be/1v3EGJh5k_8
https://youtu.be/M5MK1cBRIM4
OK a couple of vids.. Thoughts? Think that's enough to cause vibration at a given speed,? couldn't see anything wrong with the brakes.
The right side had lateral movement in it, you can see it. Guess it's why the the safety retainer was rubbing?
big thanks to Lawrie for the tip on getting the seal out without wrecking it.
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Old 01-15-2020, 07:45 AM   #24
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Default Re: Vibration - rumble

https://youtu.be/1v3EGJh5k_8
https://youtu.be/M5MK1cBRIM4
OK a couple of vids.. Thoughts? Think that's enough to cause vibration at a given speed,? couldn't see anything wrong with the brakes.
The right side had lateral movement in it, you can see it. Guess it's why the the safety retainer was rubbing?
big thanks to Lawrie for the tip on getting the seals out without wrecking them.
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Old 01-15-2020, 07:46 AM   #25
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Default Re: Vibration - rumble

https://youtu.be/1v3EGJh5k_8
https://youtu.be/M5MK1cBRIM4
OK a couple of vids.. Thoughts? Think that's enough to cause vibration at a given speed,? couldn't see anything wrong with the brakes.
The right side had lateral movement in it, you can see it. Guess it's why the the safety retainer was rubbing?
big thanks to Lawrie for the tip on getting the seals out without wrecking them.
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Old 01-15-2020, 09:10 AM   #26
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Default Re: Vibration - rumble

S'alrite, Talk, we're not deef!

I think that bearing might make that noise, as it fights itself to keep straight. Who knows?

Why not reassemble up the parts but put that bearing on the left and see if the noise transfers? Purely as a temporary thing, while awaiting new/better parts.

It might be possible to re- peen the rivets and tighten it up. I can't help thinking they should look shinier/slippier/cleaner than that, but that may be down to what grease you are using.

What are the axle and hub surfaces like? Is that grey metallic? Is something else failing?

At least you've found something that does not look right.

Re the drum retainer. it probably fouls because it is not designed for that model of drum. It would probably be ok on a 40 type drum for example.

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Old 01-15-2020, 10:24 AM   #27
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Default Re: Vibration - rumble

What do the axle tube bearing surfaces look like and what is a precision mic show for both sides? I wonder if the right side is a lot more worn than the left side? I could see that bearing causing a noise - but the noise I heard when you were turning the drum sure didn't sound like a bearing . . . but who knows.
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Old 01-15-2020, 05:13 PM   #28
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Default Re: Vibration - rumble

I can tell from experience that you will need a really bad rear wheel bearing to make a noise,I had to run one one in the 33 far worse than that ,I think from memory did two big trips total of about 13000klms.But, they made a scraping noise when rurning as the brake drum draged on the backing plat , but none straight ahead.
Look at the U/joint ,carrier bearings ,centre bearings or front drive shaft roller.
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Old 01-15-2020, 06:01 PM   #29
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Default Re: Vibration - rumble

Rob I sent you some diff noise info
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Old 01-15-2020, 07:42 PM   #30
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Default Re: Vibration - rumble

Thanks Guys , Sorry about the multiple posts for some reason the site kept dropping out when I was posting, then caught up

The axle hub surfaces aren't the best pretty sure the right side has a more pitting, but I'll clean and take pics.
Mart the retainers I did have correctly spaced and haven't been an issue before.
I can measure diameter of the axle hubs B&S , any idea of limits? Also what about the depth of the hub..? Because I had that sideways movement in the bearing?
Lawrie I got the pics but have to work out how to see them properly?
I understand what youre saying , and Im not convinced either.. mmmm But there certainly is movement..

I suppose I could just try new bearings, if that dont work out it all comes
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Old 01-16-2020, 04:58 PM   #31
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Default Re: Vibration - rumble

A quick question. With it on stands w/o tires, in gear and running, have you used a stethoscope on the rear axle and rear of the trans areas?
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Old 01-16-2020, 06:57 PM   #32
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Default Re: Vibration - rumble

Quote:
Originally Posted by frnkeore View Post
A quick question. With it on stands w/o tires, in gear and running, have you used a stethoscope on the rear axle and rear of the trans areas?
NO is the quick answer. I dont really have anyone that can help me, as in be in the car if I get under it [which Im not sure if im comfortable with ]
What I may do is replace the wheel bearings see what happens and then from there I know a few guys with hoists so I'll just have to drive there and give it a shot and have a listen
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Old 01-17-2020, 11:50 AM   #33
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Default Re: Vibration - rumble

When the U joint is out of grease it will make a big noise.
Put grease in and it go's away. G.M.
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Old 01-19-2020, 06:55 PM   #34
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Default Re: Vibration - rumble

Quote:
Originally Posted by G.M. View Post
When the U joint is out of grease it will make a big noise.
Put grease in and it go's away. G.M.
I did it about 8 months ago GM.. And I checked the uni when the new engine went in about a year and 3 months ago..Not to say that I could of shit itself in that time 'cos god knows I drive it hard..

Anyway latest is , I found another wheel bearing washed/ cleaned everything re greased and assembled..And now that noise is not there. Im going to take the wheels over for a balance today and then from there a drive, still not hopeful though.. Yeah the hubs were not good there was pitting in parts and also they are out of round too..
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Old 01-20-2020, 07:12 PM   #35
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Default Re: Vibration - rumble

Drove to work today.. F%*k ! but I did expect that there was more to it ..Aghh out it all comes...
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Old 01-20-2020, 07:40 PM   #36
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Default Re: Vibration - rumble

Can you describe what it was like? Sounds bad from your comment. Worse than before?

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Old 01-20-2020, 07:48 PM   #37
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Default Re: Vibration - rumble

Hmmm. I also wonder about the u-joint area-specifically the bolt/washer holding the joint to the trans output shaft. If that backs out it sounds like Hell and vibrates badly. Been there!
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Old 01-20-2020, 08:26 PM   #38
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Default Re: Vibration - rumble

Quote:
Originally Posted by Mart View Post
Can you describe what it was like? Sounds bad from your comment. Worse than before?

Mart.
No its still about the same Mart , I did put my foot on the clutch as I was going along and it sounded from the trans area , bad rumbling.. [bearing] and still at the specific speed.
When I put the wheels back on I was turning them while under, no noises, just a bit of backlash..

Uni..? well it might be..

Might be a call out for some good bearings fellas.. I should do the center bearing if anyone has one ; )
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Old 01-27-2020, 08:00 AM   #39
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Default Re: Vibration - rumble

Well looks like we have a winner! After disassembling the gearbox as I was sure something would show up, nothing! it was just as I built it, uni perfect, so then onto the torque tube and the coupling again perfect, but as I took the tube off, out rolled the center bearing. Have a look at the video of the clutch plate and the movement in the hub..?? Can they have some movement, I checked my other clutch plate and it's tight..
https://youtu.be/LI5aMebu1i0.
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Old 01-27-2020, 08:55 AM   #40
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Default Re: Vibration - rumble

I know the feeling and rumble. Gear oil dissolves the ruibber casing of bearing. Glad you found the problem. Don't throw away that bearing as there may be a way or re-encasing it. Also, that OEM bearing is very expensive and rare. Nice paper weight.
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