12-21-2023, 05:40 PM | #1 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Violent shake.
So to start with I have a 1950 Ford Custom. I have replaced the clutch, pressure plate, throw out bearing and hub. I had the flywheel resurfaced. It also has new u joints.
From a dead stop the car shakes hard. It smoothes out after the car gets moving. It's only on a start. I do hear a mechinacal sound some times when at speed. Any ideas? |
12-21-2023, 05:46 PM | #2 |
Senior Member
Join Date: May 2010
Location: Southern Illinois
Posts: 3,795
|
Re: Violent shake.
Have you checked all of your steering coponents for wear or anything that is loose? Drag link, tie rod ends, king pins?
|
Sponsored Links (Register now to hide all advertisements) |
|
12-21-2023, 06:04 PM | #3 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
King pins have been changed. No loose steering parts either.
|
12-21-2023, 06:08 PM | #4 |
Senior Member
Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 10,320
|
Re: Violent shake.
Check the motor mounts (and the transmission mount while you're at it).
|
12-21-2023, 06:11 PM | #5 |
Member
Join Date: Mar 2017
Location: Alberta Canada
Posts: 93
|
Re: Violent shake.
Are you talking about clutch chatter or is it after the clutch is fully released?
|
12-21-2023, 06:13 PM | #6 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
Sponsored Links (Register now to hide all advertisements)
|
12-21-2023, 06:15 PM | #7 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
It happens just as the clutch engages the flywheel.
|
12-21-2023, 06:23 PM | #8 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
I was just thinking us it possible pinion angle could cause this?
|
12-21-2023, 06:25 PM | #9 |
Senior Member
Join Date: May 2010
Location: Ohio
Posts: 175
|
Re: Violent shake.
Here’s an option.
Engine steady rods. |
12-21-2023, 06:32 PM | #10 |
Senior Member
Join Date: May 2010
Location: Coral Springs FL
Posts: 10,950
|
Re: Violent shake.
Those steady rods won't fit a 1950 Ford.
|
12-21-2023, 07:12 PM | #11 |
Senior Member
Join Date: Jul 2016
Location: Lake worth Florida
Posts: 1,101
|
Re: Violent shake.
Broken rear leaf on spring pack , loose or broken shackles, loose u bolts to axle housing .
Of course youve already checked the obvious clutch possibles . Trans mount and motor mounts or oil on the disc or a bad pressure plate . |
12-21-2023, 07:40 PM | #12 |
Senior Member
Join Date: May 2010
Location: Capital of Corruption , NY
Posts: 811
|
Re: Violent shake.
Did you have the shake prior to doing all this work?
|
12-21-2023, 08:21 PM | #13 |
Senior Member
Join Date: Jun 2011
Location: Altadena, CA
Posts: 127
|
Re: Violent shake.
Is there any play in the clutch pedal when it is all the way up? If not the clutch may not be fully engaging.
|
12-21-2023, 08:35 PM | #14 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
|
12-21-2023, 08:38 PM | #15 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
|
12-21-2023, 08:57 PM | #16 |
Senior Member
Join Date: May 2010
Location: Mn
Posts: 2,411
|
Re: Violent shake.
Terry, I read where you installed most all the New clutch parts,
but curious, did you install a New Pilot bearing/bushing too ? A wore out pilot bearing/bushing will cause one heck of a shake. .
__________________
If mama ain't happy, ain't nobody happy. But if daddy ain't happy...RUN |
12-21-2023, 09:02 PM | #17 |
Senior Member
Join Date: Dec 2010
Location: North of sandy ago, CA.
Posts: 2,064
|
Re: Violent shake.
I had the same issues in 1960 on my 50 Ford. I had the flywheel resurfaced. Should have had it balanced at the same time.
Bruce
__________________
Works good Lasts long time |
12-21-2023, 09:12 PM | #18 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
|
12-22-2023, 09:50 AM | #19 |
Senior Member
Join Date: May 2010
Location: Southern Illinois
Posts: 3,795
|
Re: Violent shake.
Tell us about the engine. Is it newly rebuilt or an older engine? Someone mentioned an oil soaked clutch and yes, that will cause a violent chatter when you let the clutch out. What is the surface of the flywheel like? Does it have hot spots?
|
12-22-2023, 10:08 AM | #20 | |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
Quote:
Earlier in this thread I mentioned pinion angle. Do you think that could cause a shake? |
|
12-22-2023, 10:09 AM | #21 |
Senior Member
Join Date: Mar 2013
Location: Green Bay Wi
Posts: 400
|
Re: Violent shake.
i can relate to the problem had the same thing with my 50 cpe. to make a long story short my flywheel was also surfaced but the first shop that did it put it on a surface grinder after another take down i took it to a well known machine shop that machined in on a milling machine the fellow who did it told me that it was shaped like dinner plate it was concaved in the middle anyway put it all to together and problem solved work’s great good luck
|
12-22-2023, 10:56 AM | #22 |
Senior Member
Join Date: May 2010
Location: Deer Lodge, MT
Posts: 658
|
Re: Violent shake.
My '49 had this same thing happening when I got it.
I had 2 NEW miss aligned hub/bearing assemblies. Final solution was NOS hub and NOS bearing that I assembled making sure the bearing was seated correctly to the hub. It's been smooth as glass for 3k miles now. |
Sponsored Links (Register now to hide all advertisements) |
|
12-22-2023, 12:11 PM | #23 |
Senior Member
Join Date: May 2015
Posts: 8,156
|
Re: Violent shake.
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
12-22-2023, 12:17 PM | #24 |
Senior Member
Join Date: May 2010
Location: Southern Illinois
Posts: 3,795
|
Re: Violent shake.
What would cause the pinion angle to change from a stock set up? Have you changed the rear end components?
|
12-23-2023, 07:14 PM | #25 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
|
12-23-2023, 09:01 PM | #26 |
Senior Member
Join Date: May 2010
Location: Yucaipa, CA
Posts: 1,095
|
Re: Violent shake.
Sponsored Links (Register now to hide all advertisements)
|
12-25-2023, 02:56 PM | #27 |
Senior Member
Join Date: Oct 2015
Location: Socal
Posts: 795
|
Re: Violent shake.
I went through this chatter deal on the truck. Turned out to be a bunch of small things... all adding up.
-several items in the pedal linkage were worn out or ovalized -engine mounts needed replacement -that dinner plate style flywheel wear scenario in post #21..... or something very similar was going on with mine. When I took everything apart for getting the engine rebuilt, I was surprised at how wonky that flywheel/disc/pressure plate interface had become under the previous owner's care or lack thereof. Last edited by 1948F-1Pickup; 12-26-2023 at 01:43 PM. |
12-25-2023, 05:55 PM | #28 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
A lot of good info here. I'm planning on taking things back apart and check things.
Please keep giving your thoughts and I appreciate it all. |
12-26-2023, 07:26 PM | #29 |
Member
Join Date: Mar 2017
Location: Alberta Canada
Posts: 93
|
Re: Violent shake.
If you are going to inspect or check pinion angles just be aware the stock 50 uses what is known as a "broken back" system of alignment. If the front u joint angles down the back will also angle down and the angles should match each other. This minimizes driveshaft hump in these cars but stresses the joints as everything moves up and down.
|
12-27-2023, 04:42 PM | #30 | |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
Quote:
|
|
12-29-2023, 12:33 AM | #31 | |
Senior Member
Join Date: Aug 2010
Location: East Boothbay, Maine
Posts: 279
|
Re: Violent shake.
Quote:
|
|
01-02-2024, 02:43 PM | #32 | |
Senior Member
Join Date: May 2010
Location: middle of Iowa
Posts: 647
|
Re: Violent shake.
Quote:
|
|
01-02-2024, 04:52 PM | #33 |
Member
Join Date: Mar 2017
Location: Alberta Canada
Posts: 93
|
Re: Violent shake.
Some mid 60,s Studebakers also used this system. It is not a "wrong" system just a different system to prevent driveline vibration. If the cars suspension heights were messed with; front and or back, it could cause a problem but I am guessing vibration at speed would be more likely.
|
01-02-2024, 05:49 PM | #34 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
So I sent my clutch parts to Fort Wayne Clutch today. A gentleman named Lou is going to check them out. Lou ask me to send the new parts I bought from Shoebox Central. I'll but anything he says is not useable or rebuildable.
|
01-02-2024, 05:57 PM | #35 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
I am in agreement with alchemy. Seem like correcting the brokeback pinion angle could not hurt.
|
02-09-2024, 05:07 PM | #36 |
Member
Join Date: Sep 2016
Location: Olathe Kansas
Posts: 44
|
Re: Violent shake.
Update on Violent Shake. It's fixed. I'd like to thank Dick Mortieay. He helped me figure out that I had a Mis matched group of parts. The car is a 1950 ford custom. Turns out it has a later modle Merc cast bell housing. It did have the 50 ford throughout bearing. The bearing did not fit correctly on the Merc arm. Ultimately I sent the new parts I bought from shoebox central to Fort Wayne Clutch. They did there magic on them and also sent me the correct throughout bearing for the Merc bellhousing. Put it all back together and it's good. Thanks to all for the responses also.
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|