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Vibration in Steering Wheel
#1385950 Thu Nov 26 2020 01:08 AM
Joined: Feb 2019
Posts: 1,150
P
Phak1 Offline OP
AD Addict
Taking my ‘52 3100 out for a test drive today, after installing my re-machined ‘59 235, there was a bit of vibration in the steering wheel at 40-45 MPH. The vibration seemed to be while it was under load as it also occurred in first going up a small hill on the dirt road going to my house. It was also pretty noisy at that speed and I’m assuming the vibration may have something to do with that.

My first though was the front motor mount might be hitting. I installed a new inner rubber and the top cap. The gap seemed sufficient. Don’t know why I felt it in the steering wheel and not in the seat of my pants nor the dash board.

What are the possibility’s ?


Phil

1952 Chevrolet 3100
Project Journals
‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Vibration in Steering Wheel
Phak1 #1385958 Thu Nov 26 2020 02:08 AM
Joined: Sep 2001
Posts: 30,784
ace skiver


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: Vibration in Steering Wheel
Phak1 #1385961 Thu Nov 26 2020 02:36 AM
Joined: Apr 2005
Posts: 9,285
Grease Monkey, Moderator General Truck Talk & Greasy Spoon
Check for a bulge in the front tire sidewall or a separation in the tread.


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne 4dr 230 I-6 one owner (I’m #2)
‘39 Dodge Businessmans Coupe
USAF 1965-69 Weather Observation Tech (got paid to look at the clouds)


"I fought the law and the law won" now I are a retired one!
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Re: Vibration in Steering Wheel
Phak1 #1385990 Thu Nov 26 2020 12:34 PM
Joined: Feb 2019
Posts: 1,150
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Phak1 Offline OP
AD Addict
Tim, I have done the steering wheel adjustment but never did a toe in adjustment. This I had planned to do but got overwhelmed by the engine/tranny rebuild.

Justhorsenround, I wasn’t thinking it had to do with tires as it was more of a buzzing type vibration than a thump, thump, thump type. I do have to check the tire pressure so I examine the tires too.


Phil

1952 Chevrolet 3100
Project Journals
‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Vibration in Steering Wheel
Phak1 #1385995 Thu Nov 26 2020 01:07 PM
Joined: Jan 2010
Posts: 4,673
D
Shop Shark
Originally Posted by Phak1
My first though was the front motor mount might be hitting. I installed a new inner rubber and the top cap. The gap seemed sufficient. Don’t know why I felt it in the steering wheel and not in the seat of my pants nor the dash board.

What are the possibility’s ?

Did you check the gap with the mount loaded?
Is it new rubber?

Dose not sound like a mount issue since is more at certain speeds,
Just checking off boxes

Re: Vibration in Steering Wheel
Phak1 #1386235 Fri Nov 27 2020 11:22 PM
Joined: Feb 2019
Posts: 1,150
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Phak1 Offline OP
AD Addict
I might have found the smoking gun. I checked the front motor mount and it was near hitting in the back where I could see it. In was only able to slip a .015” feeler gauge in between. I never checked it with the weight of the motor on it so I removed the front mount bolting, loosened the rear engine mounts, exhaust manifold to pipe flange and jacked the engine up enough to remove the mount. I milled about 1/16” off of it and reinstalled. I set the engine down on the mount and remeasured. Just over 1/16”. Perfect!

I also noticed that the washer that is bolted to the engine that is under the rubber mount was too big hitting the metal dish that holds the rubber. I chucked the washers in my lathe and cut them down so they won’t hit anymore.

I was looking at Denny Graham’s post on the front motor mount and he talks about a fat washer sandwiched between the mount and the frame. This wash was nonexistent on my truck. There also shown in the Factory Assembly Manual on Section 6 Sheet 12.

Can any of our fellow “ Stovebolters” tell me the OD and thickness of these washers?

Attached Files
82FE3581-A8A3-4C1E-806B-A95B040EE2F9.jpeg (164.92 KB, 145 downloads)
093B7937-9CCB-4050-AE51-0ED72440A3F0.jpeg (178.51 KB, 144 downloads)

Phil

1952 Chevrolet 3100
Project Journals
‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Vibration in Steering Wheel
Phak1 #1386247 Sat Nov 28 2020 12:26 AM
Joined: Jan 2010
Posts: 4,673
D
Shop Shark
.
What I found on my 50

Attached Files
5DB3987C-34B5-4FA4-AFF3-F15F6E69C749.jpeg (324.16 KB, 146 downloads)
282B0D82-59CD-43D3-84FE-724ADB8027FB.jpeg (153.32 KB, 141 downloads)
Re: Vibration in Steering Wheel
Phak1 #1386248 Sat Nov 28 2020 12:45 AM
Joined: Feb 2019
Posts: 1,150
P
Phak1 Offline OP
AD Addict
Thanks, DADS50! Those will elevate the nuts and bolts that fasten the mount to the engine above the frame, eliminating any contact with the frame.

Now to find some stock to turn some washers!


Phil

1952 Chevrolet 3100
Project Journals
‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Vibration in Steering Wheel
Phak1 #1386348 Sat Nov 28 2020 11:09 PM
Joined: Feb 2019
Posts: 1,150
P
Phak1 Offline OP
AD Addict
I turned new washers and finished installing the front motor mount. Everything clears but unfortunately it’s too dark and cold to test drive. Maybe tomorrow!

Attached Files

Phil

1952 Chevrolet 3100
Project Journals
‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Vibration in Steering Wheel
Phak1 #1386443 Sun Nov 29 2020 08:26 PM
Joined: Feb 2019
Posts: 1,150
P
Phak1 Offline OP
AD Addict
I test drove the truck today and it still has the vibration. I feel it mostly in the steering wheel. It's the worst at 45 MPH and disappears when I put the clutch in. I took her to 60 and the vibration was still there but didn’t seem as bad.

Where shall I look?


Phil

1952 Chevrolet 3100
Project Journals
‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
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