Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 07-20-2020, 09:13 AM   #1
Steve Plucker
Senior Member
 
Steve Plucker's Avatar
 
Join Date: May 2010
Location: Walla Walla, Washington USA
Posts: 5,874
Default Frame to front and rear end alignment

So here is the background...

The A frame is straight all the way around.

Attached the Rear Motor Mounts to the frame. Attached the Flywheel Housing to the Rear Motor Mounts (no engine in the frame). Attached the Clutch Housing Assembly to the Flywheel Housing.

With the assembled front end and rear end on jackstands, attached those to the frame with wheels and tires on both.

When I bring the front end's Front Radius Rod up to attach to the Clutch Housing, it is off to the right about 3/4 of an inch...I would think it should just come up and mate with Clutch Housing but it does not.

Same with rear end...off to the side about 1 inch but when I bring the Torque Tube upwards it strightens itself out but with some force.

At first I thought the main spring attachment bolt was off so I moved it but that only slightly helped.

Any ideas as to what might be the cause? Again the frame is straight at all angles.

It may straighten up when I put the whole assembly on the ground but it is hotter than hell here so staying inside for a while.

Thanks.

Pluck
__________________
www.plucks329s.org

Walla Walla (WA) Sweet A's since 1993

MARC/MAFCA member since 1978

Ford Model AA Truck Club since 1998

(LIONEL/MTH Toy Train Collector, Orange Crush Soda Collector, Steel Beer Can Collector, Old Gas Pump Collector)
Steve Plucker is offline   Reply With Quote
Old 07-20-2020, 09:16 AM   #2
chrs1961815
Senior Member
 
chrs1961815's Avatar
 
Join Date: Jul 2018
Location: Spring Grove, Illinois
Posts: 855
Default Re: Frame to front and rear end alignment

I had a similar issue with the radius ball aligning with the clutch housing, though mine was not off that far. I was able to just jack it into place, but 3/4 of an inch is fairly large. I don't have any idea why this is like this because my frame was straight as well, and any sag around the motor mounts would not do this.
__________________
"The more things change, the more they stay the same."
chrs1961815 is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 07-20-2020, 09:23 AM   #3
Will N
Senior Member
 
Will N's Avatar
 
Join Date: Jul 2010
Location: Pennsylvania
Posts: 786
Default Re: Frame to front and rear end alignment

A slight bend in the front axle, or a slight misalignment of the spring eyes, will magnify over the length of the radius rods. I don't think 3/4 inch is too bad, so long as you can move it into the socket without too much force needed.
Will N is offline   Reply With Quote
Old 07-20-2020, 10:49 AM   #4
katy
Senior Member
 
katy's Avatar
 
Join Date: Jun 2015
Location: Alberta, Canada
Posts: 2,743
Default Re: Frame to front and rear end alignment

Are the spring shackles tightened up tight? (as they shouldn't be) Or do they have a little slack?
Also the U bolts should be on the loose side while you're assembling things and tightened later when it's all together.
__________________
Play it again Sam.
katy is offline   Reply With Quote
Old 07-20-2020, 11:34 AM   #5
WHN
Senior Member
 
Join Date: Mar 2017
Location: Connecticut Shoreline
Posts: 1,171
Default Re: Frame to front and rear end alignment

Similar problem when we put front end back together after rebuilding.

We were using a different wishbone. The original one was worn and bent where it mounted to front axel on drivers side.

Well problem was axel also had a very slight bend. Most likely car was hit years ago on drivers side front wheel.

Fixed axel problem, everything fit fine.

Enjoy.
WHN is offline   Reply With Quote
Old 07-20-2020, 01:30 PM   #6
Big hammer
Senior Member
 
Join Date: Jun 2014
Location: Land of Lincoln
Posts: 2,103
Default Re: Frame to front and rear end alignment

Sponsored Links (Register now to hide all advertisements)
Working at my dads store we where assembling a barbecue grill that won't go together. Dad gave up , the hired man and I put it together after reading the instructions...............
Assemble loose then tighten up the hardware! Just maybe?
__________________
Don't force it with a little hammer tap, tap, tap
get a bigger hammer tap done
Big hammer is offline   Reply With Quote
Old 07-20-2020, 02:12 PM   #7
100IH
Senior Member
 
Join Date: Dec 2011
Location: SW Idaho
Posts: 957
Default Re: Frame to front and rear end alignment

Steve did you do the diagonal measurements? Just for grins do you have an old bare block. Put on the timing cover and front support yoke and install and look at where the stud on the yoke matches with the hole in the F. crossmember. That is just another indicator of Parallel issue but to the other side. Flying quails long ago.
100IH is offline   Reply With Quote
Old 07-20-2020, 02:18 PM   #8
Tacoma Bob
Senior Member
 
Tacoma Bob's Avatar
 
Join Date: May 2010
Location: Tacoma, WA
Posts: 899
Default Re: Frame to front and rear end alignment

Pluck, for what it's worth. When I had my motor,trans etc out of the car along with the front fenders removed I could lift the very ends of each frame rail up a good inch or two with one finger. the front end was off as well and my jack stands were just ahead of the motor mounts. These babies flex.
Tacoma Bob is offline   Reply With Quote
Old 07-20-2020, 05:39 PM   #9
Jack Shaft
BANNED
 
Join Date: Dec 2019
Posts: 696
Default Re: Frame to front and rear end alignment

The assembled driveline is 'god' not the frame.this is a pretty constant argument here,the frame is a way to carry the body and transmits some suspension load but the true rigidity and basis for 'square' is the assembled engine/trans/torque tube/rear axle,in my opinion..once the driveline is installed leave spring u bolts loose to catch with wishbone ball.
Jack Shaft is offline   Reply With Quote
Old 07-20-2020, 05:49 PM   #10
Step-down
Senior Member
 
Step-down's Avatar
 
Join Date: May 2012
Location: Hat City (Danbury CT)
Posts: 577
Default Re: Frame to front and rear end alignment

I hope I understand correct
Rear T tube I ratchet strap To pull
Front wish bone the same that set the caster 6 degrees . Some times if shackles arenít rebuild it could cause issue.
__________________
"I can't cry as long as I know the Lord has risen "
Step-down is offline   Reply With Quote
Old 07-21-2020, 06:22 PM   #11
Steve Plucker
Senior Member
 
Steve Plucker's Avatar
 
Join Date: May 2010
Location: Walla Walla, Washington USA
Posts: 5,874
Default Re: Frame to front and rear end alignment

Thanks Guys!

I will take all these suggestions under consideration when harvest is over and the heat dies down.

Pluck
__________________
www.plucks329s.org

Walla Walla (WA) Sweet A's since 1993

MARC/MAFCA member since 1978

Ford Model AA Truck Club since 1998

(LIONEL/MTH Toy Train Collector, Orange Crush Soda Collector, Steel Beer Can Collector, Old Gas Pump Collector)
Steve Plucker is offline   Reply With Quote
Old 07-21-2020, 07:11 PM   #12
Synchro909
Senior Member
 
Synchro909's Avatar
 
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 5,227
Default Re: Frame to front and rear end alignment

There are lots of ways the A frame might not line up exactly. Spring shackles need only be slightly off and the movement is magnified by the time you're back at the ball. A few thousandths of an inch inch clearance in the shackles is all it could take to make a difference like that and who worries about a few thou there?
During the heat treatment of springs, it is VERY common for the leaves to "wander" a little. Again, a slight difference would make a 3/4" difference at the ball quite easily.
Just pull the ball into place and do it up. That's what they will have done on the assembly line and they will have had the same things happen during heat treatment etc. Don't overthink this, just do it up and drive. Things will very quickly settle into a "happy" relationship.
__________________
It is no burden to carry a little extra knowledge.
Synchro909 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 09:00 AM.