Car shaking with hard acceleration - Team Camaro Tech
Engine General Engine Discussion.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 28 (permalink) Old Nov 18th, 14, 10:17 AM Thread Starter
Tech Team
Chris
 
Join Date: Feb 2010
Location: SF Bay Area, California
Posts: 64
Car shaking with hard acceleration

Hi everyone,
A few years back I had a problem of when I would accelerate, the whole car would shake pretty violently. Subsequently my transmisson blew and it sat for a while. I recently put in a new transmission (M22W) and a new clutch disc (Centerforce Dual Friction).
When I take off "normally" from a stop there is no problem, but if I give it some gas and take off quick the car still shakes. Could this be a sign of bad motor mounts maybe? Something else? I've heard some bad things about the clutch I have, could this be part of its break-in period? I would love any thoughts or opinions on this.

Thanks.
camaro192 is offline  
Sponsored Links
Advertisement
 
post #2 of 28 (permalink) Old Nov 18th, 14, 10:23 AM
Gold Lifetime Member
Vince
 
Join Date: May 2005
Location: Bay Area
Posts: 2,522
Garage
Re: Car shaking with hard acceleration

What are you working on?

1967 327 4spd convertible 119K
1968 RS Z/28 04D Norwood have owned twice
1968 RS Z/28 04D Van Nuys asleep for 36 years
1969 Z/28 X33
3forme is offline  
post #3 of 28 (permalink) Old Nov 18th, 14, 10:29 AM Thread Starter
Tech Team
Chris
 
Join Date: Feb 2010
Location: SF Bay Area, California
Posts: 64
Re: Car shaking with hard acceleration

At the moment I'm not working on anything as I just put the new transmission in a couple of weeks ago.
camaro192 is offline  
 
post #4 of 28 (permalink) Old Nov 18th, 14, 10:39 AM
Gold Lifetime Member
Vince
 
Join Date: May 2005
Location: Bay Area
Posts: 2,522
Garage
Re: Car shaking with hard acceleration

what car are you working on?

1967 327 4spd convertible 119K
1968 RS Z/28 04D Norwood have owned twice
1968 RS Z/28 04D Van Nuys asleep for 36 years
1969 Z/28 X33
3forme is offline  
post #5 of 28 (permalink) Old Nov 18th, 14, 10:39 AM
Senior Tech
Scott
 
Join Date: Oct 2013
Location: Alger, Ohio
Posts: 913
Re: Car shaking with hard acceleration

I think he means what car?
Year, engine, rear end ect.
PhantomRider is offline  
post #6 of 28 (permalink) Old Nov 18th, 14, 10:44 AM Thread Starter
Tech Team
Chris
 
Join Date: Feb 2010
Location: SF Bay Area, California
Posts: 64
Re: Car shaking with hard acceleration

Oh boy... sorry about that! Haven't had my coffee yet. It's a 67 Camaro, engine is a 350 (not original, was put in the car by my uncle about 10 years ago), a new M22W, rear-end is a stock 10-bolt (not sure on the gears but I believe they're something in the 2s).
EDIT: I should also mention that the engine was originally an inline 6.
camaro192 is offline  
post #7 of 28 (permalink) Old Nov 18th, 14, 10:48 AM
Senior Tech
Scott
 
Join Date: Oct 2013
Location: Alger, Ohio
Posts: 913
Re: Car shaking with hard acceleration

Any sounds from rear end, thinking maybe missing teeth on differantal?
Could also check mounts, flywheel, make sure driveshaft is not bent or way out of balance.
Could also be dampener, lots to check. Hard to diagnose.

Any other symtoms? Such as noises, vibrations, sputtering etc.?
PhantomRider is offline  
post #8 of 28 (permalink) Old Nov 18th, 14, 11:03 AM Thread Starter
Tech Team
Chris
 
Join Date: Feb 2010
Location: SF Bay Area, California
Posts: 64
Re: Car shaking with hard acceleration

Hm, I've never noticed any sounds coming from the back but I can try and listen for that. The car is pretty loud though, I think that would be hard to hear.

Flywheel was resurfaced and looked good.

New transmission mount (rubber) was used.

Driveshaft "looked" okay (what do I know) but I could try and check that somehow. Not sure if I can look at the motor mounts to see an issue?

No other noticable symptoms in the few rides I've had since it's been running, but I haven't really gone and opened it up quite yet because I don't want this to break something else...
camaro192 is offline  
post #9 of 28 (permalink) Old Nov 18th, 14, 11:11 AM
Senior Tech
Scott
 
Join Date: Oct 2013
Location: Alger, Ohio
Posts: 913
Re: Car shaking with hard acceleration

Motor mounts should be pretty easy to see if broke, rev the car and watch them, you should see them lift and seperate, but I really doubt it's an engibe mount causing what you are describing.

Could be caused by lack of fuel or air to engine under load, check timing and plugs.

Could be worn or lose U joints, tire out of balance, warped drums or rotors.

Hope this helps some, it's just hard to tell ya what all it can be with out being in the car when it happens.
PhantomRider is offline  
post #10 of 28 (permalink) Old Nov 18th, 14, 11:22 AM Thread Starter
Tech Team
Chris
 
Join Date: Feb 2010
Location: SF Bay Area, California
Posts: 64
Re: Car shaking with hard acceleration

That's actually very helpful, thank you! I'll see if I can find a buddy who knows more about cars than I do to take a ride with me to see what he thinks. I really appreciate you pointing me in the right direction though!
camaro192 is offline  
post #11 of 28 (permalink) Old Nov 19th, 14, 05:04 AM
Senior Tech
Brian
 
Join Date: May 2005
Location: Laurel, In
Posts: 4,923
Re: Car shaking with hard acceleration

Are the tires spinning when you get on it. Maybe it's wheel hop.

Experience...... It's what you get when you didn't get what you wanted.
buenymayor is offline  
post #12 of 28 (permalink) Old Nov 19th, 14, 09:30 AM Thread Starter
Tech Team
Chris
 
Join Date: Feb 2010
Location: SF Bay Area, California
Posts: 64
Re: Car shaking with hard acceleration

It doesn't feel like the tire is spinning, but I will check that out too.

I had forgotten because the car was sitting for so long, that the driver's side tire (which I believe is the wheel that is powered by the rear-end) is narrower than the other tires.
Long story short, someone had cut my tire one day and a friend had a tire laying around that was the right wheel size just "skinnier" than the others. I believe it's a 205 (maybe a little less) where the rest are 235. Could that be part of the problem? Maybe it threw the balance off as well? Never even considered that could be an issue.
camaro192 is offline  
post #13 of 28 (permalink) Old Nov 19th, 14, 09:34 AM
Gold Lifetime Member
Vince
 
Join Date: May 2005
Location: Bay Area
Posts: 2,522
Garage
Re: Car shaking with hard acceleration

slipping clutch.

1967 327 4spd convertible 119K
1968 RS Z/28 04D Norwood have owned twice
1968 RS Z/28 04D Van Nuys asleep for 36 years
1969 Z/28 X33
3forme is offline  
post #14 of 28 (permalink) Old Nov 19th, 14, 09:42 AM Thread Starter
Tech Team
Chris
 
Join Date: Feb 2010
Location: SF Bay Area, California
Posts: 64
Re: Car shaking with hard acceleration

Quote:
Originally Posted by 3forme View Post
slipping clutch.
With a brand new clutch, what do you think would cause this?
camaro192 is offline  
post #15 of 28 (permalink) Old Nov 19th, 14, 10:17 AM
Senior Tech
Simon
 
Join Date: Jul 2009
Location: Toronto, Canada
Posts: 493
Garage
Re: Car shaking with hard acceleration

Have you changed the U joints and if you did hopefully they were pressed on and not banged on, driveshaft out of balance?
What harmonic balancer do you have on the vehicle?

Here's the Centerforce link to review, you might pick-up some possible good info.

http://www.centerforce.com/images/si...cGuide04DL.pdf
slazisme is offline  
Sponsored Links
Advertisement
 
Reply

Tags
clutch, m22, motor mounts, shaking

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome