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Old 07-16-2019, 12:08 PM   #1
Beater
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Default shock problem

ok gents, I have a shock link problem on my 31 speedster.it has factory shocks and tube links, not dog bones, and this keeps happening



easiest way to fix it is unbolt the shock, and pull it up oreient it right, and bolt it back on. now before I get acused of ditch hopping, that's not it. potholes in the road yes maybe. anyone have this prob before? the only thing I can think of is maybe because its a speedster its lite with all the parts removed, and the body is rideing higher on the springs
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Old 07-16-2019, 05:54 PM   #2
1931 flamingo
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Default Re: shock problem

Are those the correct shock arms??
Paul in CT
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Old 07-16-2019, 06:57 PM   #3
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Default Re: shock problem

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Originally Posted by 1931 flamingo View Post
Are those the correct shock arms??
Paul in CT
Looks to me like they are too short.
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Old 07-16-2019, 09:17 PM   #4
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Default Re: shock problem

I think the judging standards states that the shock link should be near vertical. That would make your shock arm too short.
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Old 07-17-2019, 04:41 AM   #5
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Default Re: shock problem

Is the fron end lowered? Leaves removed from spring? If that's the case I would relocate the shock.
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Old 07-17-2019, 12:19 PM   #6
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Default Re: shock problem

The shock arm is incorrect - one way to tell is it should contain an obvious factory bend - google to see what the OEM part looks like.
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Old 07-17-2019, 01:05 PM   #7
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Default Re: shock problem

Try repositioning the arm so the arm is parallel to the frame with the tubular shock link vertical. The way it is now negates the action of the shock. If you can, look at an unmodified chassis to see how the shock is correctly linked to the perch.
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Old 07-17-2019, 10:53 PM   #8
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Default Re: shock problem

you guys missed the point the way it is now is what happens. yes I know the link is supposed to point up, and the arm parallel when it is set correctly everything lines up perfectly. if there was any more dogleg in the arm nothing would line up. there is some dogleg now and my fault the picture is poor and doesn't show this

the springs are stock, no leaves removed
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Old 07-18-2019, 12:15 AM   #9
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Default Re: shock problem

This would happen to me after I lowered the front end, and thought I need shorter links. Went back to standard links, and it hasn’t happened since. So, longer links needed?
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Old 07-18-2019, 10:31 AM   #10
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Default Re: shock problem

Are the U bolts tight?
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Old 07-18-2019, 12:01 PM   #11
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Default Re: shock problem

[QUOTE=Johnny Nitro;1778468]This would happen to me after I lowered the front end, and thought I need shorter links. Went back to standard links, and it hasnít happened since. So, longer links needed?[/Q

I would think it would be opposite. if you lower the front by removeing some leafs, it should have to travel farther to overcenter like this?
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Old 07-18-2019, 12:02 PM   #12
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Are the U bolts tight?
yes, everything is tight, just went over everything doing the brakes actually.
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Old 07-18-2019, 12:07 PM   #13
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Default Re: shock problem

like ive said , its maybe a poor pic and you guys cant see that the arms are curved, and that they sit level when things are right. this is how they look, when things are cofrect, and they are the correct arms. scroll down to the second picture


https://www.fordbarn.com/forum/group...3&pp=20&page=4
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Old 07-18-2019, 12:10 PM   #14
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Originally Posted by RB_Nielsen View Post
The shock arm is incorrect - one way to tell is it should contain an obvious factory bend - google to see what the OEM part looks like.
the shock arm is the correct one, it does have a obvious factory bend,
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Old 07-18-2019, 12:13 PM   #15
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Default Re: shock problem

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Originally Posted by Brentwood Bob View Post
Try repositioning the arm so the arm is parallel to the frame with the tubular shock link vertical. The way it is now negates the action of the shock. If you can, look at an unmodified chassis to see how the shock is correctly linked to the perch.
im not sure you I understand you. I know what it is supposed to look like, when it is on correctly. this picture shows what happens when I drive it after it has been put together correctly , as I stated in the description. I am trying to figure out WHY this happens, why it flips around
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Old 07-18-2019, 01:03 PM   #16
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Default Re: shock problem

Wild guess but could you have the shocks on the wrong side??


Bob
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Old 07-18-2019, 01:15 PM   #17
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Default Re: shock problem

Does it do it on both sides or just the right side?

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Wild guess but could you have the shocks on the wrong side??

Bob
I think the shocks can only go on one side. Their position is kind of determined by the notch in the square shaft for the arm bolt to pass thru... right front/left rear, left front/right rear. Yes they will bolt on the wrong side but you can not install the arms.
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Old 07-18-2019, 01:28 PM   #18
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Default Re: shock problem

both but usually the right side like ive said im not ditch rideing with this car, or real rough rideing. but the spring and body have too bounce enough for this to flip around backwards. fairly frustrateing
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Old 07-18-2019, 01:29 PM   #19
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Default Re: shock problem

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Wild guess but could you have the shocks on the wrong side??


Bob
nope, ive learned the difference, and how they go on
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Old 07-18-2019, 01:47 PM   #20
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Default Re: shock problem

How tight are the spring clips, it's a rebound problem--- hoe "tight" are the shocks set, the resistance, the spring is aftermarket, the spring clips are to control movement in the unloading direction---- if you jack by the frame so the suspension is hanging, look to see if spring leaves are separated, the clip is to hold them tight , the shock arm should be very hard to move in the down direction, a 30lb weight about on a 3 foot long lever should take 30 seconds to minute to move the shock through 20 degrees of motion
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Old 07-18-2019, 02:31 PM   #21
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Default Re: shock problem

It appears to be too light in the front, with everything missing. Have you tried adjusting the shocks to restrict more? That should lessen the travel. It appears that they are getting to the end of their travel and then they "cam over" the shocks should rebound way harder than they compress.
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Old 07-18-2019, 03:22 PM   #22
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Default Re: shock problem

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Originally Posted by Kurt in NJ View Post
How tight are the spring clips, it's a rebound problem--- hoe "tight" are the shocks set, the resistance, the spring is aftermarket, the spring clips are to control movement in the unloading direction---- if you jack by the frame so the suspension is hanging, look to see if spring leaves are separated, the clip is to hold them tight , the shock arm should be very hard to move in the down direction, a 30lb weight about on a 3 foot long lever should take 30 seconds to minute to move the shock through 20 degrees of motion
the clips are tight on the springs. ive jacked it up to check and they are tight together. I know when I take it off to put it back on the way it should be its a #$%^& to get the arm back into position the shock is working well
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Old 07-18-2019, 03:23 PM   #23
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Default Re: shock problem

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Originally Posted by whirnot View Post
It appears to be too light in the front, with everything missing. Have you tried adjusting the shocks to restrict more? That should lessen the travel. It appears that they are getting to the end of their travel and then they "cam over" the shocks should rebound way harder than they compress.
I have not messed with the shocks to put more resistence into them,
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Old 07-18-2019, 09:04 PM   #24
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Default Re: shock problem

The only way that could happen is if the chassis moves to far away from the axle to make the arms go over center. That being the cause,you maybe need a stiffer or longer spring.
What is the angle your shackles sit at,maybe your spring is to short?
Just a thought.
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Old 07-18-2019, 09:43 PM   #25
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Default Re: shock problem

the shock and shock arm look correct. it is like you are getting to much movement of the front axle. I would jack the car up put it on jack stands to the frame and see how far the front axle drops down. also you have your tie rod in backwards, the bolt always goes to the rear.
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Old 07-18-2019, 10:53 PM   #26
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Default Re: shock problem

Maybe you need longer arms since the suspension has been modified.
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Old 07-19-2019, 10:23 AM   #27
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Maybe you need longer arms since the suspension has been modified.
the suspension has not been modified, where did you get that from?
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Old 07-19-2019, 10:24 AM   #28
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Originally Posted by jw hash View Post
the shock and shock arm look correct. it is like you are getting to much movement of the front axle. I would jack the car up put it on jack stands to the frame and see how far the front axle drops down. also you have your tie rod in backwards, the bolt always goes to the rear.
I haven't done this yet, but am going to
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Old 07-19-2019, 10:25 AM   #29
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Default Re: shock problem

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Originally Posted by barrelnose View Post
The only way that could happen is if the chassis moves to far away from the axle to make the arms go over center. That being the cause,you maybe need a stiffer or longer spring.
What is the angle your shackles sit at,maybe your spring is to short?
Just a thought.
shackles sit at the correct or almost correct 45 degrees
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